Kelley Drye & Warren and Collier Shannon Scott Announce Merger

The law firms of Kelley Drye & Warren LLP and Collier Shannon Scott, PLLC announced that they have merged, forming a single firm that will offer the premier practices and distinguished client service for which each firm is known. Nationally and internationally, the firm will operate as Kelley Drye & Warren LLP; in the Washington, DC region, the firm will be known as Kelley Drye Collier Shannon.

The combined firm has over 300 lawyers and other professionals, of which more than 150 are located in the Washington, DC area. The move significantly expands Kelley Drye’s presence in Washington, where both Kelley Drye and Collier Shannon have had nationally recognized practices for several decades. The merger was announced by John Callagy, Kelley Drye’s Chairman, and Paul Rosenthal, Managing Partner of the firm’s Washington, DC office and former Chairman of Collier Shannon Scott.

“We are very excited to join with such a high-caliber Washington firm whose culture and practices are complementary to ours,” said Callagy. ​“The cohesion between the two firms is good news for our existing and future clients, and we are looking forward to a seamless transition.”

“Kelley Drye is a dynamic firm that provides clients with exceptional legal counsel and client service,” said Rosenthal. ​“We view this as an opportunity to practice with a firm whose commitment to excellence and client service matches our own.”

As a result of the merger, Kelley Drye now offers its clients new or enhanced capabilities in several key areas, including International Trade, Advertising, Government Relations, Environmental and Antitrust, and other practices. The combination significantly bolsters Collier Shannon’s depth in Litigation, as well as practices throughout Kelley Drye offices in New York, Chicago, Stamford, Brussels and elsewhere.