The challenges of defending class action lawsuits have intensified, affecting companies across industries and touching on nearly all practice areas. But in-house legal departments have responded by taking an increasingly strategic approach to these matters.

These were among the trends identified by the fourth annual Carlton Fields Jorden Burt Class Action Survey released March 16. The law firm’s survey, which is based on 360 in-depth interviews with general counsel and chief legal officers at 349 companies that operate in more than 25 industries, strives to help in-house counsel identify and manage the risks and costs inherent in class action litigation. Surveyed companies had average annual revenue of $18.2 billion.