The practice of Marais Müller resulted from a 1982 merger of two prominent law firms, the first of which was established in 1945. May 2001 saw the incorporation of Apollos & Associates into Marais Müller.
Judge (then Mr) N J Yekiso was the first black attorney to be admitted in Cape Town. He commenced practising for his own account in 1979. When he was appointed as a Judge of the High Court, the practices of Marais Müller and N J Yekiso & Associates were merged during 2003 into Marais Müller Yekiso.
Marais Müller Yekiso has branches in Tyger Valley, Cape Town, Kuils River and Stellenbosch.