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Allen & Gledhill LLP

Work +65 6890 7188
Fax +65 6327 3800
Singapore, Yangon

Yong Seng Tay

Work +65 6890 7808
Allen & Gledhill LLP

Work Department

Employment, International Arbitration, Litigation




Yong Seng acts as lead counsel in a broad spectrum of commercial and corporate disputes, including employment, companies, banking and defamation cases.

In the High Court, he has particular expertise in employment litigation. He has successfully acted for Itochu (a Japanese conglomerate) and GFI Group (a US finance house) in non-compete cases that pushed the boundaries of employment law in Singapore. He also has significant experience in handling complex industrial accidents and product failures, having defended leading multinational companies in the automobile, chemical and paper industries.

In the Court of Appeal (Singapore’s highest Court), his experience lies in arguing novel and difficult points of law. His successful cases as lead advocate include a landmark 5-Judge decision on defamation, and a leading decision on company and insolvency law.

Yong Seng also has a busy international arbitration practice, typically involving joint venture disputes. He has represented airlines, power generators, media companies and healthcare companies. He successfully acted for a Japanese MNC in one of the first arbitrations under the 2016 SIAC Expedited Procedure, and subsequently defended the award in the High Court.

Yong Seng has Government experience as an Assistant Director in the Ministry of Law. He is also active in legal scholarship. Apart from teaching at the Singapore Institute of Legal Education, he is Subject Editor for Employment Law for SAL Practitioner (a journal of the Singapore Academy of Law), and has published in leading international and local journals like Global Arbitration Review and Singapore Academy of Law Journal.

The Legal 500 Asia Pacific (2019) recognises Yong Seng as a commercial litigator who 'truly goes above and beyond' and 'understands what the business is and what the business wants'.


English, Mandarin


Yong Seng currently sits on the Board of Governors of Nanyang Polytechnic (a Government Institute of Higher Learning), and is Honorary Legal Adviser to the Singapore Table Tennis Association (a National Sports Association of the Singapore Government).


Yong Seng was educated at the University of Oxford. He took a BA (Hons) in Law in 2003 (converted to MA in 2013), and a BCL in 2004. He was called to the Singapore Bar in 2006. At Oxford, he was an Exhibitioner and a College Book Prize winner at Pembroke College.

Singapore: Dispute resolution

Dispute resolution – Local firms

Within: Dispute resolution – Local firms

At Allen & Gledhill LLP, Dr Stanley Lai, SC ('a good strategist and IP litigator') is now the firm's sole Senior Counsel litigator following the departures of Ang Cheng Hock SC to the bench and Edwin Tong SC, who became Senior Minister of State for Law and Health. Despite these departures, the firm maintains a high market share of big-ticket Singapore disputes. Lai recently led the team that represented Credit Suisse Trust in a headline dispute concerning a trust set up by Bidzina Ivanishvili, the Georgian billionaire and former Prime Minister of Georgia. The 'truly excellent', 'professional' and 'fantastic' team features William Ong, who 'can zero in on the key issues of concern, map out strategic solutions and passionately deliver legal arguments'. Vincent Leow provides 'very good and practical advice' and 'impresses with the quality of his work'. Jason Chan is noted for white-collar crime and investigations, while Tay Yong Seng 'truly goes above and beyond' and 'understands what the business is and what the business wants'. Peh Aik Hin is a 'top-tier lawyer' who is 'razor sharp in getting to the issues and addressing concerns'. Kristy Tan has has joined the Attorney General's Chambers.

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