Two of the three partners of Circular Law Chambers LLP have been working together as partners for more than 25 years at their previous firms, Toh Tan & Partners (1975 to 2008) which was converted into a limited liability partnership under the style and name of Toh Tan LLP (2008 to 2015) in 2008. Toh Tan LLP was dissolved on 31 December 2015 and two out of the previous three partners of Toh Tan LLP (namely, Denis Tan and Lilian Lim) continued practice under the firm, Circular Law Chambers LLP. The new partnership, Circular Law Chambers LLP commenced practice on 1 January 2016. Both Denis Tan and Lilian Lim have at least 30 years of experience each. The partners are supported by a team of qualified lawyers whose experience range up to 24 years and a core team of senior support staff who have worked together with the partners for periods ranging up to 20 years.

Circular Law Chambers LLP has been ranked in the inaugural Singapore's Best Law Firms 2021 list, produced through a survey undertaken by The Straits Times and German-based research firm Statista. The firm was highly rated in the Conveyancing and Real Estate Practice area. The results are based on more than 10,000 recommendations from over 4000 lawyers, in house counsels and clients.