Founded in 1786 by Richard Wilson, May May & Merrimans has always practised within or close to the Inns of Court. For over 100 years the practice occupied no. 49 Lincolns' Inn Fields, until the move to its present premises in Gray's Inn in 1958. In the 19th Century the partners practised under their own names; Charles Gibbons May became a partner in 1884 and this family connection continued until 1965.
The firm took its present name on amalgamation with Merrimans in 1968 and subsequently acquired the practices of Ravenscroft Woodward & Co and Caprons & Crosse, both of which also had long antecedents in the private client field. The firm acquired the private client practice of Bird & Bird in 2004 and continues to expand.