SJ Berwin has joined the growing rank of law firms restructuring their partnerships, with the City firm asking a number of partners to leave.

The top 20 firm confirmed that it has asked a group of partners to leave in recent weeks, with both equity and non-equity partners understood to have been affected.

SJ Berwin would not clarify the precise number of partners affected by the cull beyond saying that "fewer than six" of its 170-strong partnership had been asked to go.