Castellum, Inc. CTM

What this company does

Castellum is focused on building a large, successful technology services, solutions, and products company in the areas of cybersecurity, IT, electronic warfare, information warfare, system modernization, and information operations with businesses in the defense, federal, civilian, and commercial markets. Our primary customers are currently agencies and departments of the USG. Castellum competes with many different companies, including Northrop Grumman Corporation, CACI International, Inc., Peraton, Inc., and Booz-Allen Hamilton, Inc. among others. As of December 31, 2025, we employed 244 full and part-time employees with fifty-eight percent (58%) of our employees holding degrees in science, technology, engineering, or mathematics fields, twenty percent (20%) holding advanced degrees, and ninety-seven percent (97%) of our employees holding security clearances.

Written from the business description in Castellum, Inc.'s annual report to the U.S. Securities and Exchange Commission, filed 9 March 2026. Every sentence was checked against that document before publication.