New York-based Kirby McInerney can punch above its weight in securities litigation for plaintiffs. Since January 2012, the 22-lawyer firm has helped secure settlements of more than $750 million for plaintiffs against Citigroup Inc. and National City Corp.

“We’re constantly involved in some important and significant cases,” said Kirby McInerney partner Ira Press, one of the lead lawyers against the financial institutions. In In re Citigroup Inc. Securities Litigation, the firm helped secure $590 million for shareholders, resolving claims that the financial-services firm misled them about its subprime mortgage exposure. U.S. District Judge Sidney Stein in the Southern District of New York approved the settlement in August.