Since it was founded in 2016 by insurance lawyers from Lewis Brisbois Bisgaard & Smith, Chester County-based law firm Mullen Coughlin has been growing a roster of Big Law talent while amassing a growing share of the cybersecurity legal market.

The midsize firm, which represents companies defending against and responding to cyber incidents, has grown its head count by more than 600% in recent years by recruiting lateral groups from elite law firms, as the volume of cybersecurity cases is expected to increase from 3,500 last year to close to 5,000 by the end of 2021, founding partner John Mullen said.