Castellum, Inc. Achieves CMMC Level 2 C3PAO Certification

VIENNA, Va., April 23, 2026 (GLOBE NEWSWIRE) -- Castellum, Inc. (NYSE-American: CTM) (“Castellum” “CTM”, “we” or the “Company”), a cybersecurity, electronic warfare, and software services company focused on the federal government, announces that it has achieved Cybersecurity Maturity Model Certification (“CMMC”) Level 2 following a comprehensive assessment conducted by an accredited Certified Third‑Party Assessment Organization (“C3PAO”).