Gibbs & Soell, the 40-year-old independent firm specializing in technology, energy, and other areas, has a new CEO.

Luke Lambert has been promoted to CEO effective March 1. He’s only the third person in the history of the firm to hold that title. Lambert was previously the president of the firm, and will continue on with the dual titles. He joined the firm in 1996 and became a shareholder in 2001.

Lambert replaces Cos Mallozzi, who is retiring after 35 years with the firm. He served as CEO for 20 of those years.

Jeff Altheide has also been promoted to the title of EVP, a role focused on business development. Altheide has been with the firm for 30 years and is also an agency shareholder.