GTRZ was founded in 1996 by Gideon Tan, who was shortly thereafter joined by two partners, Razali Ibrahim and Mohamed Zaini Mazlan. All three started their legal careers together at a prominent commercial firm in Kuala Lumpur. Razali Ibrahim has since gone on to a career in politics and was serving as former deputy minister in the Malaysian government. Mohamed Zaini Mazlan, on the other hand, has become a Malaysian High Court judge.
Since its inception, GTRZ has been based in Kelana Jaya, one of Klang Valley’s most central and convenient locations.