Castellum, Inc.'s Subsidiary GTMR Adds Professional Services to its Current GSA MAS Contract

VIENNA, Va., April 15, 2025 (GLOBE NEWSWIRE) -- Castellum, Inc. (NYSE-American: CTM) ("Castellum" or "CTM"), a cybersecurity, electronic warfare, and software engineering services company focused on the federal government, announces that its subsidiary Global Technology and Management Resources, Inc. ("GTMR") has added Special Item Number ("SIN") 541611 to their existing General Services Administration ("GSA") Multiple Award Schedule ("MAS") contract. SIN 541611 now allows GTMR to bid on competitive contrac ...