Gary Oliver
Senior Clerk
+44 (0) 207 822 7325
Tom's practice focuses on competition, public and regulatory, and commercial law. He acts for clients across a range of sectors, including aviation, energy and telecommunications and technology. He has extensive experience of complex and high-value litigation and has been involved in many leading cases in his practice areas, including in the Court of Justice of the European Union, Supreme Court, Court of Appeal, High Court and Competition Appeal Tribunal. Notable recent cases include:
Other recent highlights of Tom's public law practice include acting for a water company in the context of enforcement action relating to sewage discharges, a major property developer in connection with DLUHC's controversial cladding remediation scheme, a global bank on regulatory issues following the shutdown of the London Metal Exchange's nickel market, and central government in judicial reviews concerning the alleged corrupt diversion of international aid, the implementation of CJEU judgments (with associated Francovich issues), and badger culling.
Tom is recognised by both of the independent legal directories, Chambers & Partners and Legal 500, as a leading junior in five practice areas. Recent quotes include:
Tom is a member of the Attorney General's B panel of counsel. He has also been called to the Irish Bar and is a member of the Law Library, and so is able to accept instructions to appear before EU Courts.
Tom has been involved in a wide range of leading competition cases in the High Court, CAT and CJEU.
Tom has recently been or currently is instructed in standalone and follow-on damages actions in the High Court and CAT (including Interchange, Trucks and Air Cargo), abuse of dominance proceedings in the High Court (eircom v BT, PACE Rights Management v PRS and On The Beach v Ryanair), appeals against infringement decisions in the CJEU and CAT, private High Court claims alleging breach of merger undertakings (Stonegate v Noble) and public law cases involving unlawful subsidy and Francovich issues.
Tom has been involved extensively in collective proceedings against tech giants in the CAT. He is currently acting or has acted for for the proposed class representatives in Gormsen v Meta, Hunter v Amazon and Riefa v Apple and Amazon.
Tom further has experience in price control matters, appearing in the RIIO ED1, RIIO 2 and RIIO ED2 energy price control appeals before the CMA.
Tom has also advised a wide range of sports bodies on competition law issues.
Tom was called to the Bar of Ireland in 2020 and is a member of the Law Library (and so is able to accept instructions to appear before EU Courts).
“Tom is fantastic. He's a silent assassin. He's very clever and is masterful on competition cases. He's our go-to barrister.”
Chambers and Partners, 2025
“Tom Coates is someone who makes himself available and is very personable, so it's enjoyable to work with him. He is thoughtful and his written work is also very good, clear and easy to understand.”
Chambers and Partners, 2025
“Tom is an incredibly thoughtful barrister and gives careful consideration to all aspects of the instruction. His written advocacy is always of an excellent standard and he clearly understands and is across all aspects of his cases.”
Legal 500, 2025
“He has really sound judgement and knows how the court will see something. He doesn't waste a word in his written submissions - every word counts.”
Chambers UK, 2024
“Tom is very quick to get across the detail and is constructive in his proposals and suggestions.”
Chambers UK, 2024
“A real rising star, Tom combines intellectual brilliance, crisp advocacy, and strategic and tactical awareness beyond his year of call.”
Legal 500, 2024
Instructed as junior counsel for Primark in its damages claims against Visa and Mastercard for breach of Article 101 TFEU / the Chapter I prohibition. Tom has appeared at several CMCs or mini-CMCs before the Tribunal and is instructed to appear at the seven-week trial of pass-on issues commencing in November 2024.
Instructed as junior counsel for the proposed class representative in her renewed application to commence collective proceedings in the Competition Appeal Tribunal alleging an abuse of dominance by Meta in connection with its collection of "off-Facebook" data from users (led by Robert O'Donoghue KC). The proceedings were certified in 2024 and Meta's appeal to the Court of Appeal was dismissed.
Instructed as junior counsel for the proposed class representative in an application to commence collective proceedings in the Competition Appeal Tribunal alleging an abuse of dominance by Amazon in connection with the operation of its "buy box" (led by Marie Demetriou KC and Robert O'Donoghue KC).
Instructed for British Airways Plc in its appeal to the CJEU against a judgment of the General Court dismissing its application to annul the Commission's Air Cargo competition infringement decision (led by Robert O'Donoghue KC).
Instructed as junior counsel for the proposed class representative in an application to commence collective proceedings in the Competition Appeal Tribunal alleging an anti-competitive agreement between Apple and Amazon in connection with the sale of Apple products on the Amazon platform (led by Tom De La Mare KC).
Instructed for the DawsonGroup claimants in the Trucks follow on damages litigation (led by Hanif Mussa KC). Tom was instructed mainly in relation to issues of pass on. The case settled shortly before a 4-month trial listed in spring 2023.
Instructed as junior counsel (led by Tom De La Mare KC) for Stonegate Farmers in substantial commercial / competition proceedings in the High Court (Competition List) in which the defendants are alleged to have circumvented undertakings given to the Competition and Markets Authority in the context of a merger investigation. The proceedings are docketed to Marcus Smith J .
Instructed as junior counsel (led by Robert O'Donogue KC) for eircom in proceedings involving a claim for damages under the Communications Act 2003 in respect of BT's breach of SMP conditions and a stand-alone claim for breach of the Chapter II prohibition. eircom alleges that BT discriminated in favour of its own downstream operations in the context of the tender of a major public telecommunications contract in Northern Ireland. The case is listed for a five week trial in 2025.
Instructed as junior counsel for the claimants (led by Tom Weisselberg KC) in High Court proceedings alleging breach of statutory duty and abuse of dominance by PRS in connection with various rules or practices it has adopted with respect to writer members.
Instructed as junior counsel for Ryanair (led by Brian Kennelly KC and Sara Abram KC) in proceedings brought by an online travel agent alleging that Ryanair has abused its dominant position by inhibiting third party access to flight information and booking services.
Instructed as junior counsel (led by Brian Kennelly QC) for the Secretary of State in a major judicial review concerning the Secretary of State's alleged failure to implement a decision of the CJEU concerning the proper interpretation of the Motor Insurance Directive. The case raised issues concerning the UK's exit from the EU, including breach of property rights, unlawful State aid, and Francovich damages.
Instructed as junior counsel for a telecommunications company (led by Tom de la Mare QC) in the first competition proceedings brought by Ofcom for infringement of the Chapter I prohibition. The case raises issues of the confidentiality of information and the rebuttable presumption that undertakings take account of information received where they remain active on the market subsequently.
Instructed as counsel for the defendant in a case concerning the alleged infringement of undertakings offered to the CMA in the context of a merger investigation and in particular whether an option over land held by the claimant infringes those undertakings and the defendant is entitled to damages under s. 74 of the Enterprise Act 2002 as a result. The defence and Part 20 Claim was dismissed at first instance by Marcus Smith J whose judgment was overturned by the Court of Appeal.
Instructed as junior counsel (led by Brian Kennelly QC) for Secop GmbH, a defendant to a follow-on damages claim in the High Court arising from the refrigeration compressors cartel. The case raised issues of the jurisdiction of the English courts to hear the case.
Tom has a general public law practice, appearing for both claimants and defendants in judicial review and other administrative proceedings. He is a member of the Attorney General's B panel of counsel.
He has particular experience of regulatory issues in various sectors (including energy, telecommunications, aviation and higher education).
In the energy context, he has advised or represented regulators (including Ofgem and the North Sea Transition Authority) and businesses in relation to high-profile energy issues such as the RIIO ED2, T2 and GD2 price controls, the domestic energy price cap, the offshore transmission regime, smart-metering, and fracking.
In the higher education context, Tom has appeared for the Office for Students in the first challenges brought against its new regulatory regime under the Higher Education and Research Act 2017 in the High Court and Court of Appeal. Tom continues to advise frequently on regulatory issues affecting the higher education sector.
In the telecommunications context, Tom has advised or represented both Ofcom and businesses in relation to competition proceedings, consumer enforcement matters, spectrum award issues, consumer protection enforcement proceedings and annual licence fees.
As part of his aviation practice, Tom has further represented airlines in regulatory proceedings involving the Civil Aviation Authority and Competition Markets Authority.
“Tom is a detailed and thorough barrister.”
Chambers and Partners, 2025
“A client focused barrister, who always provides very thoughtful, timely advice.”
Legal 500, 2025
“Tom is incredibly bright. He remains calm, even in highly pressurised situations, and consistently delivers high quality advice at pace.”
Legal 500, 2024
“His advice is timely and focused and demonstrates an excellent understanding of the law.”
Chambers and Partners, 2023
“He is always a pleasure to work with: very intelligent, thoughtful and professional.”
Chambers and Partners, 2023
“Tom is an immensely impressive junior. He is very responsive, very approachable and not afraid to muck in and get involved with the heavy lifting on cases.”
Legal 500, 2023
Instructed as junior counsel for Ofgem (led by Daniel Beard KC) in an appeal to the Competition and Markets Authority brought by Northern Powergrid against Ofgem's RIIO-ED2 price control decision.
Acting for an energy company (led by Javan Herberg KC) in connection with an investigation into alleged market manipulation.
Instructed as junior counsel (led by Monica Carss-Frisk KC) for a water company in the context of Ofwat's investigation into its alleged excessive discharge of sewage into waterways.
Instructed as junior counsel for Ofcom (led by Monica Carss-Frisk QC and Naina Patel) in a challenge to its decision to take no regulatory action in respect of Openreach's "Equinox" offer for fibre-to-the-premises.
Instructed as junior counsel (with Javan Herberg QC, Shaheed Fatima QC and Simon Pritchard) advising a major global bank in relation to regulatory issues caused by the recent shutdown of the nickel market operated by the London Metal Exchange. The nickel market was closed following an unprecedented spike in the price of nickel after the invasion of Ukraine.
Instructed as junior counsel (led by Brian Kennelly QC) for the Secretary of State in a major judicial review concerning the Secretary of State's alleged failure to implement a decision of the CJEU concerning the proper interpretation of the Motor Insurance Directive. The case raised issues concerning the UK's exit from the EU, including breach of property rights, unlawful State aid, and Francovich damages.
Instructed as junior counsel for the defendant in two related judicial reviews brought by bus operators against Greater Manchester's decision to introduce bus franchising to Manchester under the Transport Act 2000 (a system similar to that used in London). The case raises issues of whether Greater Manchester's decision can be said to be lawful in the light of the problems raised by the Covid-19 pandemic.
Instructed as junior counsel for Ofgem in eight major appeals brought by electricity and gas transmission and gas distribution companies against Ofgem's price control decision, which set the prices to be recovered from consumers between 2021 and 2026. The appeals (worth hundreds of millions in terms of regulated revenues) were largely dismissed by the CMA.
Instructed as junior counsel for a telecommunications company (led by Tom de la Mare QC) in the first competition proceedings brought by Ofcom for infringement of the Chapter I prohibition. The case raises issues of the confidentiality of information and the rebuttable presumption that undertakings take account of information received where they remain active on the market subsequently.
Instructed as junior counsel for Ryanair (led by Brian Kennelly QC) in enforcement proceedings brought by the Civil Aviation Authority under the Enterprise Act 2002 in connection with Ryanair's failure to pay compensation to passengers whose flights were affected by union-led strikes in 2018. The case raised issues of the extent to which English Courts should have regard to decisions of the CJEU after the end of the implementation period. Permission was granted to appeal to the Supreme Court but the case settled.
Instructed as junior counsel (led by Monica Carss-Frisk QC and Tristan Jones) in judicial review proceedings brought by a higher education provider in relation to the OfS's refusal to register it under the new regulatory regime under the Higher Education and Research Act 2017. The case was the first challenge to the OfS and raised issues of lawful delegation, the duty to consult, the public sector equality duty, A1P1, discrimination under Article 14 ECHR and proportionality.
Instructed as junior counsel (led by Kate Gallafent QC) for the Oil and Gas Authority (as it was) in a judicial review brought by an environmental campaigner challenging the Oil and Gas Authority's actions in respect of the assignment of fracking licences. The case raised issues concerning who has ultimate liability for onshore oil and gas decommissioning and whether the Oil and Gas Authority has duties or powers to secure the same.
Instructed as junior counsel (led by Monica Carss-Frisk QC) for the OfS in a challenge to a decision refusing to register the claimant as a higher education provider. The claimant applied for an injunction restraining the OfS's publication of its adverse decision. The High Court rejected the application and its judgment develops the principles governing the restraint of publication of regulatory decisions, including the balancing of rights under Articles 8 and 10 ECHR.
Instructed as junior counsel for the Secretary of State (with Hanif Mussa) in a series of judicial reviews concerning the lawfulness of the Secretary of State's policy of badger culling as part of the strategy to eradicate bovine tuberculosis. The claimants claims were all dismissed in the High Court and Court of Appeal. The most recent judgment defined the scope of the Secretary of State's duty to have regard to the purpose of conserving biodiversity under s. 40 of the Natural Environment and Rural Communities Act 2006.
Instructed as junior counsel (led by Javan Herberg QC) in an appeal by Virgin Media against an enforcement decision concerning the early termination charges paid by Virgin Media's customers. The case raised issues concerning the lawfulness of Ofcom's approach to setting penalties "in the round". The CAT dismissed Virgin Media's appeal.
Instructed as junior counsel to Ofgem (led by Alan Maclean QC and Jessica Boyd) in British Gas's judicial review of Ofgem's domestic retail energy price cap.
Tom is frequently instructed to advise windfarm operators in relation to issues concerning the regulatory regime for offshore wind operated by Ofgem. Tom has advised on issues regarding the lawfulness of Ofgem's decisions and possible claims for damages under the Human Rights Act 1998 for infringement of A1P1.
Instructed as junior counsel (led by Natalie Lieven QC) in a judicial review brought by the ICAEW against the Lord Chancellor's refusal to approve its application to become an approved regulator in respect of legal services.
Instructed as junior counsel (led by Dinah Rose QC, Jessica Boyd and Hanif Mussa) for Ofcom in two expedited judicial review claims brought by Hutchison 3G and BT/EE with respect to Ofcom's award of the 2.3 and 3.4 GHz spectrum. The case raised important issues of fairness in consultation. Ofcom was successful at first instance and successfully resisted permission to appeal at a rolled-up hearing before the Court of Appeal.
Instructed as junior counsel (led by Javan Herberg QC) for Ofgem in a judicial review claim brought by an electricity distributor challenging Ofgem's decision of a connections dispute referred to it under section 23 of the Electricity Act 1989. The case raises the issue of whether or not electricity distributors can request payment in advance of connection works without paying interest thereon.
Instructed as junior counsel (led by Michael Fordham QC) for Vodafone as an interested party to EE’s challenge to Ofcom’s decision to revise annual license fees payable by the MNOs for their use of radio spectrum. The case raised issues as to the proper interpretation of the telecommunications Common Regulatory Framework.
Acting for the Human Embryology and Fertilisation Authority in a claim which concerned whether or not the Authority had lawfully decided not to release the eggs of a deceased woman to her claimant mother for use in IVF treatment. Tom was specifically instructed to assist on the issue of whether or not the decision engaged or infringed Article 8 ECHR.
Instructed as junior counsel (led by Brian Kennelly QC) in judicial review proceedings challenging a decision of the Civil Aviation Authority which sought to limit the terms of which Ryanair could contract with alternative dispute resolution providers.
Instructed as sole counsel for the Institute of Chartered Accountants in a 7-day disciplinary hearing against a QC relating to the former accountant for the Sugababes, charged with failing to deal in a timely manner with certain aspects of the band's affairs and those of the former member, Amelle Berrabah. The charges were found proved at first instance and Mr White's appeal against the findings was dismissed following a further 3-day hearing.
Instructed as junior counsel (with Naina Patel and Ben Jaffey) in a judicial review claim brought by an exporter of diesel generators challenging an export licence refusal decision by the Export Control Office. The claim raises Article 6 issues regarding the duty to give reasons and further issues under A1P1.
Instructed as junior counsel (led by Pushpinder Saini QC, Jane Collier, and Hanif Mussa) for the Gas and Electricity Markets Authority (Ofgem) in the appeal brought by British Gas against Ofgem’s RIIO-ED1 price control decision for the electricity distribution sector. This was the first appeal to be brought under section 11 of the Electricity Act 1989 and was successfully defended by Ofgem.
Instructed as junior counsel (led by Alan Maclean QC) for the Hepatitis C Trust in its challenge to a decision by the NHS limiting the availability of new treatments for Hepatitis C to NHS patients.
Tom has been involved in a wide range of important EU cases before the CJEU and domestic courts.
In addition to his competition experience (see above), as part of his aviation practice, Tom has been instructed in several preliminary references to the CJEU concerning aspects of EU aviation law, including flight delay compensation and optional price supplements. He is also currently representing British Airways in its appeal against the Commission's cartel infringement decision in Air Cargo.
Recently, Tom has advised in relation to EU and UK sanctions imposed on Russia following the outbreak of war in Ukraine.
Tom was called to the Bar of Ireland in 2020 and is a member of the Law Library (and so is able to accept instructions to appear before EU Courts).
Instructed for British Airways Plc in its appeal to the CJEU against a judgment of the General Court dismissing its application to annul the Commission's Air Cargo competition infringement decision (led by Robert O'Donoghue KC).
Instructed as junior counsel for the proposed class representative in an application to commence collective proceedings in the Competition Appeal Tribunal alleging an abuse of dominance by Amazon in connection with the operation of its "buy box" (led by Marie Demetriou KC and Robert O'Donoghue KC).
Instructed as junior counsel for the proposed class representative in an application to commence collective proceedings in the Competition Appeal Tribunal alleging an anti-competitive agreement between Apple and Amazon in connection with the sale of Apple products on the Amazon platform (led by Tom De La Mare KC).
Instructed for the DawsonGroup claimants in the Trucks follow on damages litigation (led by Hanif Mussa KC). Tom was instructed mainly in relation to issues of pass on. The case settled shortly before a 4-month trial listed in spring 2023.
Instructed as junior counsel for British Airways (led by Brian Kennelly KC) in major class proceedings in the High Court in which the claimant seeks to claim on behalf of millions of passengers for flight delay compensation payments using the representative procedure under CPR 19.6. British Airways successfully applied to strike out the action in July 2024.
Instructed as junior counsel (led by Robert O'Donogue KC) for eircom in proceedings involving a claim for damages under the Communications Act 2003 in respect of BT's breach of SMP conditions and a stand-alone claim for breach of the Chapter II prohibition. eircom alleges that BT discriminated in favour of its own downstream operations in the context of the tender of a major public telecommunications contract in Northern Ireland. The case is listed for a five week trial in 2025.
Instructed as junior counsel for the claimants (led by Tom Weisselberg KC) in High Court proceedings alleging breach of statutory duty and abuse of dominance by PRS in connection with various rules or practices it has adopted with respect to writer members.
Instructed as junior counsel for Ryanair (led by Brian Kennelly KC and Sara Abram KC) in proceedings brought by an online travel agent alleging that Ryanair has abused its dominant position by inhibiting third party access to flight information and booking services.
Instructed as junior counsel for Ryanair (led by Brian Kennelly QC) in enforcement proceedings brought by the Civil Aviation Authority under the Enterprise Act 2002 in connection with Ryanair's failure to pay compensation to passengers whose flights were affected by union-led strikes in 2018. The case raised issues of the extent to which English Courts should have regard to decisions of the CJEU after the end of the implementation period. Permission was granted to appeal to the Supreme Court but the case settled.
Instructed as junior counsel (led by Brian Kennelly QC) for the Secretary of State in a major judicial review concerning the Secretary of State's alleged failure to implement a decision of the CJEU concerning the proper interpretation of the Motor Insurance Directive. The case raised issues concerning the UK's exit from the EU, including breach of property rights, unlawful State aid, and Francovich damages.
Instructed as counsel for Laudamotion in a preliminary reference concerning the interpretation of Regulation (EC) 261/2004 and in particular whether passengers are entitled to compensation where their flight is brought forward rather than delayed and whether notice to an online travel agent is an effective defence under the Regulation.
Instructed as counsel for Ryanair in a preliminary reference from German proceedings concerning whether union-led strikes amount to extraordinary circumstances for the purposes of Regulation (EC) 261/2004 (on compensation for denied boarding and cancellations) and the interaction between the Regulation and fundamental EU rights of collective bargaining.
Instructed as junior counsel for Ryanair (led by Brian Kennelly QC) in a preliminary reference to the CJEU from proceedings brought by the Italian Competition Authority concerning the compatibility of Ryanair's optional price supplements (such as credit card and check-in fees) with Regulation No 1008/2008.
Instructed as junior counsel for Ryanair (led by Brian Kennelly QC) in a preliminary reference to the CJEU from underlying Spanish proceedings concerning the interpretation of the "extraordinary circumstances" defence under Regulation (EC) 261/2004 on compensation for passengers in the event of flight disruption.
Instructed as sole counsel for Ryanair in Court of Appeal proceedings concerning the proper interpretation of Regulation (EC) 261/2004 and whether union-led strikes affecting Ryanair's operations amount to "extraordinary circumstances". The case raises issues concerning the effect of Brexit on retained EU law and caselaw.
Instructed as junior counsel (with Brian Kennelly QC) for Ryanair in a claim brought by a firm of solicitors concerning Ryanair's handling of flight disruption compensation claims under EU Regulation 261/2004 and the alleged entitlement to protection of solicitors' liens. Ryanair successfully defended the claim at first instance and the claimant's appeal to the Court of Appeal was dismissed. The Supreme Court allowed the claimant's appeal by a 3-2 majority in an important judgment which defines the scope of the equitable lien in a modern context.
Instructed as junior counsel (led by James Segan QC) for the defendant in a multi-million Euro claim for breach of distribution agreements governing the parties' supply and sale of pesticide products in Europe. The case raised issues of breach of confidence and EU intellectual property law.
Instructed as junior counsel (led by Brian Kennelly QC) for Delta in follow-on damages proceedings brought in the High Court by W H Newson following a finding that IMI, Delta and others had participated in a copper fittings cartel. Tom appeared at the trial of a preliminary issue concerning whether or not Delta were entitled to rely on a limitation defence to resist contribution proceedings brought by IMI under the Civil Liability (Contribution) Act 1978 once the main action had settled.
Instructed as junior counsel (led by Brian Kennelly QC) for Secop GmbH, a defendant to a follow-on damages claim in the High Court arising from the refrigeration compressors cartel. The case raised issues of the jurisdiction of the English courts to hear the case.
Instructed as junior counsel (led by Michael Fordham QC) for Vodafone as an interested party to EE’s challenge to Ofcom’s decision to revise annual license fees payable by the MNOs for their use of radio spectrum. The case raised issues as to the proper interpretation of the telecommunications Common Regulatory Framework.
Instructed as junior counsel (led by Brian Kennelly QC) for Ryanair in an appeal to the High Court in a claim concerning flight delay compensation under Regulation (EU) 261/2004. The appeal raises the issue of whether or not infants are entitled to compensation under the Regulation.
Tom has been involved in a wide range of commercial cases in the Commercial Court, Chancery Division and arbitration proceedings. In addition to his particular experience of complex and heavyweight competition litigation (see above), he has experience in areas such as fraud, asset recovery, and injunctive relief. He is instructed both as sole counsel and as part of a wider team. Tom further has experience of group and managed litigation, including major representative proceedings in the High Court against BA and easyJet in respect of the millions of flight compensation claims, the mobile telephone voicemail interception litigation (the "phone-hacking" litigation) and the construction industry vetting information litigation.
“Tom is very good on paper. He delivers great, to-the-point advice, that is easily understandable to the client.”
Chambers and Partners, 2023
“Tom Coates is incredibly responsive. He can see the issue very quickly. He is very willing to get involved with the hard work.”
Chambers and Partners, 2023
“An extremely talented barrister with outstanding knowledge and understanding of the aviation industry.”
Chambers and Partners, 2022
Instructed as junior counsel for British Airways (led by Brian Kennelly KC) in major class proceedings in the High Court in which the claimant seeks to claim on behalf of millions of passengers for flight delay compensation payments using the representative procedure under CPR 19.6. British Airways successfully applied to strike out the action in July 2024.
Instructed as junior counsel (led by Tom De La Mare KC) for Stonegate Farmers in substantial commercial / competition proceedings in the High Court (Competition List) in which the defendants are alleged to have circumvented undertakings given to the Competition and Markets Authority in the context of a merger investigation. The proceedings are docketed to Marcus Smith J .
Instructed for British Airways Plc in its appeal to the CJEU against a judgment of the General Court dismissing its application to annul the Commission's Air Cargo competition infringement decision (led by Robert O'Donoghue KC).
Instructed for the DawsonGroup claimants in the Trucks follow on damages litigation (led by Hanif Mussa KC). Tom was instructed mainly in relation to issues of pass on. The case settled shortly before a 4-month trial listed in spring 2023.
Instructed as junior counsel (with Brian Kennelly QC) for Ryanair in a claim brought by a firm of solicitors concerning Ryanair's handling of flight disruption compensation claims under EU Regulation 261/2004 and the alleged entitlement to protection of solicitors' liens. Ryanair successfully defended the claim at first instance and the claimant's appeal to the Court of Appeal was dismissed. The Supreme Court allowed the claimant's appeal by a 3-2 majority in an important judgment which defines the scope of the equitable lien in a modern context.
Instructed as junior counsel (with Victoria Windle) for the claimants, two management consultants and turnaround experts, in their claim for an equity stake in an international telecommunications business. The claimants successfully resisted combined applications for summary judgment and orders declaring that the English court had no jurisdiction to hear the claims. A three-week trial commenced in late 2021 but the dispute settled.
Instructed as junior counsel in a large team of counsel representing News International in ongoing managed litigation brought by celebrities and other prominent individuals alleging breach of privacy rights by "phone hacking".
Instructed as counsel for the defendant in a case concerning the alleged infringement of undertakings offered to the CMA in the context of a merger investigation and in particular whether an option over land held by the claimant infringes those undertakings and the defendant is entitled to damages under s. 74 of the Enterprise Act 2002 as a result. The defence and Part 20 Claim was dismissed at first instance by Marcus Smith J whose judgment was overturned by the Court of Appeal.
Instructed as counsel for the claimants (which operate a luxury asset pawning business) in proceedings brought against its former CEO for breach of directorial duties. The case raises issues of the provenance and authenticity of artworks alleged to be by Turner and Degas (on which loans from the claimants were secured). Tom appeared at a two-day hearing where the claimants successfully resisted strike out and summary judgment applications ([2021] EWHC 1902 (Ch)).
Instructed as junior counsel (with Andrew Hunter QC, Adam Baradon and Harry Adamson) for the defendants to a US$200m fraud claim. The case involved an application to discharge a US$160m freezing injunction inter alia on the basis of material non-disclosures and several ancillary applications.
Instructed as junior counsel (led by James Segan QC) for the defendant in a multi-million Euro claim for breach of distribution agreements governing the parties' supply and sale of pesticide products in Europe. The case raised issues of breach of confidence and EU intellectual property law.
Instructed as junior counsel (led by Michael Bloch QC) for the Lend Lease defendants in the group litigation brought by various former construction workers who alleged that they had been “blacklisted” by a consortium of construction companies during a period from 1970 to 2010. The case raised issues of defamation, breach of privacy, data protection, conspiracy and joint liability. Tom appeared as a sole advocate for Lend Lease at CMCs before the High Court.
Instructed as junior counsel (led by Tom Weisselberg QC) for a high-profile applicant seeking an injunction restraining the defendant from misusing confidential information acquired in working on the applicant’s biography.
Instructed as junior counsel for an airline in a commercial LCIA arbitration against an airport in a dispute arising out of an airport services agreement.
Instructed as junior counsel (with Adam Baradon) for the defendant to a multi-million pound LCIA arbitration claim for breach of contract, fraud and negligent mismanagement of the claimant company's business.
Tom has significant experience in the field of energy regulation. Since being seconded to Ofgem in 2015, Tom has been involved in many of the leading cases in the area. These include the RIIO ED1 and RIIO GD2, T2 and ED2 price controls, in which he successfully represented Ofgem, enforcement proceedings against energy suppliers in respect of smart metering obligations, major judicial review proceedings brought by British Gas against the domestic energy price cap, and proceedings against the Oil and Gas Authority (as it was) relating to the decommissioning of fracking assets.
Tom frequently advises both Ofgem and regulated companies on various aspects of the UK energy regulatory scheme. Recently, he has advised extensively in relation to capacity market auctions and the offshore wind regime. He has also advised clients in relation to matters such as smart metering, regulated governance issues, renewables incentives and the connections scheme.
“Tom is bright, highly responsive and a joy to work with, and his reassuring manner is a hit with clients.”
Legal 500, 2025
“The interface between commercial practices and some areas of regulation are not well understood in the energy sector, but Tom gets it and provides well-reasoned, pragmatic advice.”
Legal 500, 2024
“Tom is simply excellent – extremely thorough in his advice, full of practical solutions and a talented advocate.”
Legal 500, 2023
“A very thorough and thoughtful barrister with a great ability to cut to the nub of a problem.”
Legal 500, 2022
“He is thorough in his advice, great to work with and incredibly diligent – a real rising star.”
Legal 500, 2021
Instructed as junior counsel for Ofgem (led by Daniel Beard KC) in an appeal to the Competition and Markets Authority brought by Northern Powergrid against Ofgem's RIIO-ED2 price control decision.
Acting for an energy company (led by Javan Herberg KC) in connection with an investigation into alleged market manipulation.
Instructed as junior counsel for Ofgem in eight major appeals brought by electricity and gas transmission and gas distribution companies against Ofgem's price control decision, which set the prices to be recovered from consumers between 2021 and 2026. The appeals (worth hundreds of millions in terms of regulated revenues) were largely dismissed by the CMA.
Instructed as junior counsel to Ofgem (led by Alan Maclean QC and Jessica Boyd) in British Gas's judicial review of Ofgem's domestic retail energy price cap.
Instructed as junior counsel (led by Kate Gallafent QC) for the Oil and Gas Authority (as it was) in a judicial review brought by an environmental campaigner challenging the Oil and Gas Authority's actions in respect of the assignment of fracking licences. The case raised issues concerning who has ultimate liability for onshore oil and gas decommissioning and whether the Oil and Gas Authority has duties or powers to secure the same.
Instructed as junior counsel (led by Javan Herberg QC) for Ofgem in a judicial review claim brought by an electricity distributor challenging Ofgem's decision of a connections dispute referred to it under section 23 of the Electricity Act 1989. The case raises the issue of whether or not electricity distributors can request payment in advance of connection works without paying interest thereon.
Tom is frequently instructed to advise windfarm operators in relation to issues concerning the regulatory regime for offshore wind operated by Ofgem. Tom has advised on issues regarding the lawfulness of Ofgem's decisions and possible claims for damages under the Human Rights Act 1998 for infringement of A1P1.
Instructed as junior counsel (led by Pushpinder Saini QC, Jane Collier, and Hanif Mussa) for the Gas and Electricity Markets Authority (Ofgem) in the appeal brought by British Gas against Ofgem’s RIIO-ED1 price control decision for the electricity distribution sector. This was the first appeal to be brought under section 11 of the Electricity Act 1989 and was successfully defended by Ofgem.
Tom has been involved in a range of telecommunications cases, advising and representing MNOs and other entities in the sector on regulatory and other matters. He is currently acting or has recently acted in regulatory appeals concerning Openreach's SMP conditions, a private law competition and Communications Act 2003 claim brought by eircom against BT, and a Chapter I infringement investigation brought by Ofcom. He has also represented Ofcom in the Competition Appeal Tribunal in consumer protection enforcement proceedings and in the High Court and Court of Appeal in relation to the auction of radio spectrum.
“He is a brilliant junior, provides extremely sound advice and is extremely easy to work with.”
Chambers and Partners, 2025
“Tom is very responsive, has exceptional judgement and is a pleasure to work with.”
Chambers and Partners, 2025
“Tom Coates is someone who is very available, very personable and thoughtful, and his written work is also very good and easy to understand.”
Chambers and Partners, 2025
Instructed as junior counsel (led by Robert O'Donogue KC) for eircom in proceedings involving a claim for damages under the Communications Act 2003 in respect of BT's breach of SMP conditions and a stand-alone claim for breach of the Chapter II prohibition. eircom alleges that BT discriminated in favour of its own downstream operations in the context of the tender of a major public telecommunications contract in Northern Ireland. The case is listed for a five week trial in 2025.
Instructed as junior counsel for Ofcom (led by Monica Carss-Frisk QC and Naina Patel) in a challenge to its decision to take no regulatory action in respect of Openreach's "Equinox" offer for fibre-to-the-premises.
Instructed as junior counsel for a telecommunications company (led by Tom de la Mare QC) in the first competition proceedings brought by Ofcom for infringement of the Chapter I prohibition. The case raises issues of the confidentiality of information and the rebuttable presumption that undertakings take account of information received where they remain active on the market subsequently.
Instructed as junior counsel (led by Javan Herberg QC) in an appeal by Virgin Media against an enforcement decision concerning the early termination charges paid by Virgin Media's customers. The case raised issues concerning the lawfulness of Ofcom's approach to setting penalties "in the round". The CAT dismissed Virgin Media's appeal.
Instructed as junior counsel (led by Dinah Rose QC, Jessica Boyd and Hanif Mussa) for Ofcom in two expedited judicial review claims brought by Hutchison 3G and BT/EE with respect to Ofcom's award of the 2.3 and 3.4 GHz spectrum. The case raised important issues of fairness in consultation. Ofcom was successful at first instance and successfully resisted permission to appeal at a rolled-up hearing before the Court of Appeal.
Instructed as junior counsel (led by Michael Fordham QC) for Vodafone as an interested party to EE’s challenge to Ofcom’s decision to revise annual license fees payable by the MNOs for their use of radio spectrum. The case raised issues as to the proper interpretation of the telecommunications Common Regulatory Framework.
Tom has gained a wide experience of sports cases before a variety of tribunals. He has been involved in disputes between sports clubs and owners, before sports disciplinary panels, and between clubs or individuals and regulators. He recently appeared in the Court of Arbitration for Sport for the International Association of Athletics Federations in a disciplinary case concerning the corruption of officials of a member federation. Tom has particular experience of and interest in advising sports governing bodies on competition law issues (for example regarding match allocations and broadcasting rights).
Instructed as junior counsel (led by Kate Gallafent QC) for the IAAF in two conjoined appeals arising out of disciplinary proceedings brought by the IAAF against two senior officials at Athletics Kenya on corruption charges. The main appellant's appeal against findings of corruption was dismissed by the Court of Arbitration for Sport.
Instructed as sole counsel for Thomas Minns, a rugby league player, defending doping charges brought by UK Anti-Doping.
Instructed as junior counsel (led by Ian Mill QC) for the defendant football agent to a claim by a football club for fraudulent misappropriation of agency fees. Tom successfully represented the defendant in an application under section 9(4) of the Arbitration Act 1996 for a stay of proceedings in favour of arbitration.
Instructed to represent a football manager facing an FA Rule E3 improper conduct charge.
Instructed as junior counsel (led by Charles Flint QC) to advise a racecourse on a potential challenge to an adverse licensing decision by the Gambling Commission.
Tom has been instructed in a range of cases in the field of media, entertainment and technology and has appeared in IPEC and Chancery Division proceedings. He has particular experience of advising and representing clients in the media and entertainment sector on competition law issues.
Instructed as junior counsel for the claimants (led by Tom Weisselberg KC) in High Court proceedings alleging breach of statutory duty and abuse of dominance by PRS in connection with various rules or practices it has adopted with respect to writer members.
Instructed as counsel for the claimants (which operate a luxury asset pawning business) in proceedings brought against its former CEO for breach of directorial duties. The case raises issues of the provenance and authenticity of artworks alleged to be by Turner and Degas (on which loans from the claimants were secured). Tom appeared at a two-day hearing where the claimants successfully resisted strike out and summary judgment applications ([2021] EWHC 1902 (Ch)).
Instructed as junior counsel in a large team of counsel representing News International in ongoing managed litigation brought by celebrities and other prominent individuals alleging breach of privacy rights by "phone hacking".
Instructed as sole counsel for a defendant in a partnership dispute concerning the break-up of the heavy metal band, Bullet For My Valentine.
Instructed as sole counsel for a musician in High Court proceedings claiming termination of a publishing agreement.
Instructed as sole counsel in High Court proceedings concerning the owenrship of copyright in materials relating to an unpublished biography.
Instructed to represent Reformation in an IPEC claim for breach of copyright in 2 famous Spandau Ballet songs: "Gold" and "True". The case mainly concerned the proper quantification of notional licence fees and raised a legal issue as to the term of the hypothetical licence.
Instructed as sole counsel for the Institute of Chartered Accountants in a 7-day disciplinary hearing against a QC relating to the former accountant for the Sugababes, charged with failing to deal in a timely manner with certain aspects of the band's affairs and those of the former member, Amelle Berrabah. The charges were found proved at first instance and Mr White's appeal against the findings was dismissed following a further 3-day hearing.
Instructed as junior counsel (led by Robert Anderson QC) in High Court proceedings brought be a former member the Sex Pistols for revenues due to him from the other members of the band under a licensing agreement.
Instructed as junior counsel (led by James Segan QC) for the defendant in a multi-million Euro claim for breach of distribution agreements governing the parties' supply and sale of pesticide products in Europe. The case raised issues of breach of confidence and EU intellectual property law.
Instructed as junior counsel (led by Tom Weisselberg QC) for a high-profile applicant seeking an injunction restraining the defendant from misusing confidential information acquired in working on the applicant’s biography.
Classics (BA Hons, Oxon): First Class (fifth in year); Graduate Diploma in Law (City): Distinction; BPTC (Kaplan): Outstanding.
Prior to joining Chambers, Tom worked in the office of capital defence attorney in Houston, Texas, assisting clients facing the death penalty. While in Texas, Tom observed and participated in a full capital murder trial, in which his client escaped the death penalty.
Before coming to the Bar, Tom worked as a Classics teacher of students aged thirteen to eighteen at Westminster School.
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