Rajah & Tann Singapore LLP is a Singaporean law firm with affiliate offices in Cambodia, China, Indonesia, Laos, Malaysia, Myanmar, Philippines, Thailand and Vietnam. Founded in 1976, the firm is regarded as one of the Big Four law firms in Singapore. It is a member firm of Rajah & Tann Asia, a network of law firms in Southeast Asia with over 970 fee earners.^[2][3]

Rajah & Tann has practices in banking, competition, corporate governance, corporate finance, dispute resolution, information technology, infrastructure, insolvency, insurance, mergers and acquisitions, shipping, telecommunications and trade.^[4][5] The firm is additionally known for its China, Japan and South Asia specific practice groups. Its network also includes R&T Asia Resources that procures project-specific in-house lawyers to support the firm's clients,^[6] and R&T Technologies, a consulting firm that is focused on cybersecurity, data breach readiness and response, a virtual law academy and other legaltech services.^[7][8]

Its clientele ranges from multinational and Fortune 500 corporations to emerging high-tech enterprises and start-ups. The firm is also a sole member from Singapore at Lex Mundi, an international professional services network.^[9][10]

The firm's notable alumni include V. K. Rajah, Steven Chong and Sundaresh Menon. Lee Eng Beng was the managing partner from 2010 to 2019.^[11] Patrick Ang succeeded Lee Eng Beng as the managing partner in 2019.^[12] In 2022, Kelvin Poon and Ng Kim Beng were appointed as Joint Deputy Managing Partners.

Rajah & Tann (then known as Tann Wee Tiong & T. T. Rajah) was founded by T. T. Rajah and Tann Wee Tiong in 1976.^[13] Rajah and Tann were also the founding members of People's Action Party and later members of the now-defunct Barisan Sosialis.

Rajah's son V. K. Rajah was appointed as the managing partner in 1987. He oversaw the growth of the firm from 6 lawyers to more than 160 lawyers and 200 staff.^[14] Steven Chong was appointed as the joint managing partner in 1998.^[15]

The firm established a representative office in Shanghai in 2003.^[16] In January 2004, Steven Chong became the sole managing partner when V. K. Rajah became a Judicial Commissioner.^[17]

Kuala Lumpur based Christopher & Lee Ong (formed by the merger of three Malaysian law firms), entered into an alliance with Rajah & Tann Asia in 2013.^[18]

The partnership law firm of Rajah & Tann converted to a limited liability partnership on 1 January 2008.^[19]

In August 2009, S.R. Nathan, former President of Singapore, appointed Steven Chong and deputy managing partner, Quentin Loh to the bench as Judicial Commissioners.^[20] Subsequently, Sundaresh Menon and Eng Beng Lee were appointed as managing and deputy managing partners respectively.^[21] In October 2010, Eng Beng Lee took over as the managing partner when Sundaresh Menon was appointed as the Attorney-General of Singapore.^[22][23]

In 2011, Rajah & Tann set up affiliate offices in Bangkok, Ho Chi Minh City and Vientiane as a part of its strategy for regional expansion.^[24] Furthermore, the firm tied up with local law firms in Phnom Penh, Jakarta and Yangon in 2013.^[25][26]

In January 2017, the Rajah & Tann Asia network absorbed Gatmaytan Yap Patacsil Gutierrez & Protacio (C&G Law) as its member firm in the Philippines.^[27]

In 2019, Patrick Ang succeeded Eng Beng Lee as the managing partner while Rebecca Chew is the deputy managing partner of the firm.^[12]

Rajah & Tann is regarded among the "Big Four" law firms in Singapore, and is also one of the largest law firms in Southeast Asia.^[2] The other three law firms in the Big Four are Allen & Gledhill, WongPartnership and Drew & Napier. In July 2011, the board of directors at Lex Mundi, a professional legal services network, had voted unanimously to admit Rajah & Tann as the exclusive member firm from Singapore.^[9][10][28]

The firm's partners and alumni are variously placed in prominent positions in Singapore. V. K. Rajah, the firm's former managing partner, went on to become a judge of the High Court in November 2004, and Judge of Appeal in April 2007.^[29] Subsequently, Sundaresh Menon was appointed as a Judge of Appeal in August 2012, until his appointment as the current Chief Justice of Singapore in November 2012.^[30] In June 2014, V. K. Rajah was appointed as the Attorney-General of Singapore, where he remained until his retirement in January 2017.^[29] Rajah was also appointed to board of the Monetary Authority of Singapore in October 2014 and continues to serve there.^[31][32] Additionally, partners Murali Pillai and Vikram Nair currently serve as members of the 13th Parliament of Singapore,^[33][34] while litigation partner Gregory Vijayendran was elected twice to serve as the president of the Law Society of Singapore from 2017 to 2021.^[35][36]

In October 2014, Rajah & Tann was announced as the official legal partner for the 2015 Southeast Asian Games held on 5–16 June 2015.^[37] A new practice group, Business Fundamentals, was launched in November 2015, to provide tailored legal advice to startups and SMEs in deal-making, dispute resolution and documentation.^[38] In October 2017, the firm adopted artificial intelligence technology developed by Luminance, a legaltech startup, to improve its due diligence processes for M&A transactions.^[39][40]

The Rajah & Tann Foundation was set up in early 2011 to give a portion of the firm's annual earnings to social causes. The firm committed to an annual contribution of at least SGD 200,000.^[51] The foundation supports pilot projects focused on development of underprivileged children, providing necessary care and aid to the elderly, and offering assistance to disadvantaged groups and individuals.^[52]

Rajah & Tann is a participant of FLIP, a two-year pilot initiative launched by the Singapore Academy of Law in 2017. It aims to promote the adoption of technology by law firms and brings together lawyers, technology firms, investors, regulators and academics.^[53]