Gregory Casas is a Partner at DLA Piper, where he focuses his practice on antitrust, complex business litigation, and energy and natural resources law. His career includes prior roles as a Shareholder at Greenberg Traurig, Llp, and a Partner at Bakerhostetler.

Casas's antitrust practice has an international scope, encompassing litigation related to price-fixing, bid-rigging, and market allocation claims.