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Antoine Tinnion
Call 2004
Specialisms: Employment, Business, Chancery, Personal Injury, Costs
Antoine Tinnion CV
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Tel: 0191 232 1927


Antoine Tinnion



Antoine has broad experience in all the main ET jurisdictions (discrimination, unfair and wrongful dismissal, wage disputes, breach of contract, TUPE, whistleblowing, equal pay, etc.) and advises in court cases involving the enforcement of restrictive covenants. Antoine is an experienced advocate before the EAT, and acted in ET cases in England, Wales, Scotland and Northern Ireland.

In 2020, Antoine was appointed an Employment Judge in Scotland. He continues to act for claimants and respondents in Employment Tribunals in England, Wales and Northern Ireland.

Cases of interest

DWP v Boyers [2020] UKEAT/0282/19/AT (acting for DWP at ET and EAT resisting former employee's claims of unfair dismissal and disability discrimination under s.15 of Equality Act 2010)

Linsley v HMRC [2018] UKEAT/0150/18/JOJ (acting for appellant in ET and EAT advancing reasonable adjustments claim premised on failure to provide dedicated parking space for disabled employee)

Harpham v (1) Mansfield Community & Voluntary Services (2) Newton (2018, Nottingham ET) (acting for respondents in 12 day case resisting claims of unfair dismissal, whistleblowing, victimisation by former employee)

Gainford Care Homes Ltd. v. (1) Tipple (2) Roe [2016] EWCA Civ. 382 (appeal against strike out order under rule 18(7)(c); failure to give reasons)

LLDY Alexandra Ltd. v. UNITE THE UNION [2014] UKEATS/002/14/SM (acting for union at ET and EAT resisting appeal against ET's finding that TUPE transferor and transferee had breached duty to state reasons for transfer, failed to give employees information sufficiently in advance of transfer)

Gainford Care Homes Ltd. v Kennedy [2014] UKEAT/0155/14/RN (acting for employer in successful appeal against ET's finding of fact which breached rules of natural justice)

Swinburne & Jackson LLP v. Simpson [2013] UKEAT/0551/12/LA (appeal against unfair dismissal for redundancy: misdirection; perversity; substitution; failure to give reasons)

GM Packaging (UK) Ltd v. Haslem [2013] UKEAT/0259/13/LA (appeal against unfair dismissal for misconduct: identifying ‘principal reason’ for dismissal; substitution; perversity; whether dismissal outside range of reasonable responses)

White v. Castlebeck Care (Teesside) Limited (2012, Newcastle ET) (representing former manager of Winterbourne View care home in successful claim for unfair dismissal following 2011 Panorama investigation re: abuse of residents)

Executive Training Solutions Ltd v. Howe [2011] EWHC 2031, Ch.D (resisting employer’s claim against former employee to account for sums earned during/after employment; scope of fiduciary duty to account; illegality defence)

Commercial/Chancery Litigation

The Legal 500 has listed Antoine as a leading Commercial Barrister since 2011. Antoine has specialised in resolving business disputes since qualifying as a solicitor at Slaughter and May in 1996. He advises sole traders, partnerships, companies, shareholders, directors and those dealing with them - including customers, lenders, and investors - in (1) contract disputes (2) debt collection (3) directors duties/disqualification (4) shareholder disputes (5) financial mis-selling (6) commercial landlord and tenant (7) corporate and personal insolvency (8) professional negligence (esp. involving solicitors) (9) construction (10) fraud/embezzlement (11) sale of goods (12) partnership disputes (13) breach of confidence (14) insurance.

Antoine has substantial experience drafting and arguing urgent interim applications, and obtained numerous freezing orders. His commercial practise aims to combine technical expertise with pragmatic advice aimed at achieving the best outcome at lowest cost. Antoine is experienced in the use of mediation/ADR to resolve commercial disputes.

Cases of interest

A1 Alpha Properties (Leicester) Ltd. v Mezzino Ltd. (2018, unreported) (acting for landlord asserting £500,000 claim against former managing agent, defending £500,000 counterclaim)


New Horizon Holdings, Inc. v. Edwards (2018) (acting for US company seeking to enforce US$37 million judgment against British defendant in prison in Nevada; freezing injunction)

Nova Payroll Management Services Ltd. v (1) Field (2) Nurtured Care Ltd. (2017, unreported) (acting for former employer seeking injunctive relief against former employee and new employer based on breaches of contract committed prior to termination of employment contract)

On Line People Ltd. v Engineering Construction Industry Training Board (2017) (acting for company appealing against imposition of £344,000 training levy fee)

Morris v The Highland Group Int’l GmbH (2017, unreported) (acting for Swiss company in liquidation in Switzerland resisting petition for winding up order in England)

Pitilla v. Pitilla (2017, unreported) (acting for will beneficiary asserting claim against executor based on his failure to pay her testamentary inheritance)

McAskill v (1) Fulton (2) Fulton (3) Total Solutions Direct Ltd. [2015] LTL 28/4/2015 (Ch.) (application for permission to bring a derivative claim in company’s name against directors/shareholders under s.261 of Companies Act 2006)

Secretary of State for Business, Innovation & Skills v. Doherty [2014] EWHC 2816 (Ch) (7 day High Court trial before Mr Justice Norris re: application to disqualify defendant as company director)


Antoine has a keen interest in disputes concerning land law and landlord and tenant matters (commercial and residential). He advises commercial and social landlords, tenants, banks and other lenders, developers, vendors, purchasers, agents, neighbours and those dealing with them.

Cases of interest

Cutting v McGough (2017, unreported) (acting for claimant against former partner asserting he owned 50% beneficial interest in former home under a constructive trust)

Begum v (1) Issa (2) Issa [2014] LTL 12/11/2014 (Leeds CC, HHJ Behrens) (resisting claim under Trusts of Land and Appointment of Trustees Act 1996 premised on non-execution of documents, overriding interest)

Link Lending Ltd v. Hussein [2010] EWCA Civ.424, [2010] All ER(D)161 (Court of Appeal) (leading case on meaning of "actual occupation" for purpose of creating an overriding interest under Land Registration Act 2002)

Ruddick v. Ormston [2005] EWHC Civ. 2547, Ch.D, [2006] 1 P&CR DG 21 (validity of contract for sale of land under s.2(1) of Law of Property (Miscellaneous Provisions) Act 1989)

Personal Injury

Antoine undertakes a 50/50 mix of claimant and defendant work in a range of RTA and other personal injury claims. He represents clients at CCMCs, interim applications, final hearings, appeals and infant settlement hearings. He is experienced in disputes concerning credit hire and costs.


  • In 2020, Antoine was appointed an Employment Judge in Scotland. He continues to act for claimants and respondents in Employment Tribunals in England, Wales and Northern Ireland.
  • Antoine is on the Attorney General's Regional Panel of Counsel, and is regularly instructed by the Government Legal Department in Employment and Commercial/Insolvency-related matters.


"He is concise, a superb draftsman, and a very able Advocate. He will go the extra mile with clients directly, inevitably puts them at ease, and is very effective at managing expectations" Commercial Litigation, Legal 500 2021

"A no-nonsense and well-respected advocate who sees the angles quickly." Employment, legal 500 2021

"A superb draftsman who is also excellent with clients" Commercial, Banking, Insolvency and Chancery (Legal 500 2020)

"Someone you want in your corner and not on the other side." Employment (Legal 500 2020)

"Tenacious on his feet." Commercial, Banking, Insolvency and Chancery (Legal 500 2019)

"His practice includes restrictive covenants and discrimination matters." Employment (Legal 500 2018)

"His attention to detail is truly mind-boggling" (Legal 500 2017)

"Mr Tinnion was called to give expert evidence on the law of the State of New York. He is very well qualified to do so, having qualified at the New York Bar and practised with two of the most reputable firms in New York over seven years, as well as having a Master's Degree from Harvard. He is also qualified as a Barrister and Solicitor in England. I found him to be an impressive witness who properly discharged his duty to the tribunal; indeed his evidence on the issue of whether under New York law the employer has a right of suspension without pay, his evidence directly contradicted the Second Respondent's case and led to the Claimant's claim for unpaid wages against the Second Respondent being conceded at a late stage in the proceedings. I accept Mr Tinnion's evidence in its entirety." - Employment Judge Wallington Q.C. Martin v Poseidon Systems Ltd and Poseidon Systems LLC, Employment Tribunals(Scotland) May 2017

“Has an interesting depth of experience to draw upon, having accrued legal expertise in domestic and international matters in his long tenure as an advocate. He frequently represents respondents and claimants across the full spectrum of matters, including discrimination, unfair dismissal, wage disputes and TUPE matters. He is also a leading authority in the area of restrictive covenants.”"Very thorough and good at identifying issues and focusing on the ultimate objective." - Employment (Chambers & Partners 2017)

"A robust advocate, whose client service is second to none"- Leading junior (North East Circuit) - Commercial, Banking, Insolvency and Chancery (Legal 500 2016)

"A hardworking practitioner with an excellent attention to detail" - Leading junior (North East Circuit) - Employment (Legal 500 2016)

"His preparation is very thorough and his submissions to the Tribunal are excellent" - Employment (Chambers & Partners 2016)

"He is happy to go the extra mile and is particularly good in more complex cases" - Employment (Chambers & Partners 2016)

"Bold and incisive" Leading junior (North East Circuit) - Commercial, Banking, Insolvency (Legal 500 2015)

"One of the sharpest minds practising employment law today" - Leading junior (North East Circuit) Employment (Legal 500 2015)

"Fiercely combative and intelligent" (Legal 500 2014)

"Antoine Tinnion is commended for his ‘tremendous work ethic and forceful advocacy’" (Legal 500 2013)

"Antoine Tinnion specialises in commercial litigation" (Legal 500 2012)

"Names of note at Trinity Chambers include Antoine Tinnion, who has ‘excellent legal knowledge’ and pays ‘high attention to detail’" (Legal 500 2011)

Court of Appeal stated it was “impressed” with the “excellence” of Antoine Tinnion’s advocacy (para. 5 of Link Lending Ltd. v. Bustard [2010] EWCA Civ. 424)


Employment Law Bar Association

North East Circuit


“Selection Box: Employers Enjoy High Degree of Flexibility When Choosing Redundancy Selection Criteria”, New Law Journal, 16 November 2012 (article argues that EAT’s judgment in Mitchells of Lancaster v. Tattersall has substantially widened the selection criteria which employers can legitimately use in redundancy selection exercises)


Cambridge University - BA in Law (1st Class Honours), Sidney Sussex College Scholar, Tripos Prize

Oxford University - MA in Politics Philosophy & Economics

Harvard Law School - Masters degree in Law, financial scholarship


Antoine is able and willing to receive instructions direct from members of the public. Any requests should be directed to his clerks in the first instance.