Leading Russian firm Egorov Puginsky Afanasiev & Partners will acquire 100-lawyer pan-Commonwealth of Independent States practice Magisters in the region’s largest-ever law firm merger, the firms jointly announced Tuesday. The combined business, which will operate under the Egorov Puginsky Afanasiev & Partners (EPAP) name, will comprise 27 partners and more than 300 lawyers.

Dimitry Afanasiev, chairman of Moscow-based EPAP, says that his firm needed to merge in order to sustain its growth.