Christopher Dugan, the former head of the international trade and regulatory practice at Jones Day Gouldens, and Jamie Wareham, the former partner in charge of client development, have already moved to Paul Hastings.
Both will continue to specialise in complex civil litigation, corporate governance and enforcement-related matters at Paul Hastings, within a group chaired by Barbara Brown.
This is the second round of appointments Paul Hastings' Washington office has undertaken within a matter of weeks, after bringing in international transactional partner Jorge Alers and of counsel Chris Bruneau from Wilmer Cutler & Pickering.
Dugan had been with Jones Day for 22 years, during which time the firm completed its high-profile merger with UK firm Gouldens. It is not clear if the recent tie-up served as an impetus for his decision to leave.
Dugan said: “It was time for a change and I've enormous respect for the people at Jones Day.”
Jones Day Gouldens was unavailable for comment.