Integrity. Innovation. Engagement. Sustainability.

Supporting mission critical systems, services, and cyber security through innovation


The 21st century's national security challenges have been largely driven by the explosive growth of digital communications and enterprise systems that have broken down the traditional barriers between information and the medium over which it was transmitted and archived. While the changing information technology environment provides many new opportunities, it also offers new threats.

Castellum Inc. (NYSE-American: CTM) is a technology company focused on leveraging the power of information technology to help solve our Nation's most pressing national security challenges. We provide US government and commercial clients with Cybersecurity, Software Development, Systems Engineering, Information / Electronic Warfare, Program Support, and Data Analytics services. We also offer subject matter expertise in artificial intelligence / machine learning, 5G technologies, model-based systems engineering, program management, information assurance, intelligence analysis, and CMMC compliance. In addition to constantly innovating and enhancing our organic capabilities, Castellum is executing strategic acquisitions of firms that share our passionate commitment to US national security and have a history of bringing exceptional value to their clients.



GTMR, Inc. Acquisition Announced

Castellum, Inc. uplists to the NYSE American

Lexington Solutions Group Acquisition Announced

Merrison Tech and Specialty Systems, Inc. Acquisitions Announced

MFSI Acquisition Announced

RSM completes audit

RSM named audit firm

BioNovelus changes name to Castellum

Corvus Consulting Acquisition Announced

LOI to purchase Corvus Consulting, LLC

Yield Sign for trading removed

Stop Sign for trading removed

BioNovelus Acquired by Bayberry Acquisition Corporation (Wright/Fuller)