Dewberry, a privately held professional services firm based in Fairfax, Va., recently promoted Douglas Pheiffer, AIA, LEED AP, to principal and business manager of Illinois operations. With more than 23 years of architecture experience, Pfeiffer has overseen the design of numerous civic buildings. He served as principal-in-charge of the Kendall County, Ill., Public Safety Center Improvements project as well as principal-in-charge of the new Glen Ellyn, Ill., police facility. In his new role of business manager, he will be responsible for the management of the firm’s Northeastern and Central Illinois offices, which serve a diverse client base in the areas of advanced health, safety, education and commercial architecture. Pfeiffer earned his bachelor’s degree in architecture from Iowa State University.