Castellum is a defense-oriented technology company which is executing strategic acquisitions in the cyber security, information technology.
Castellum has raised $5.0M in total funding. The most recent round was Post-IPO Equity. The last funding was announced in June 2025.
Castellum's investors include Live Oak Bank.
Castellum is headquartered in Bethesda, United States.
Castellum is a defense-oriented technology company which is executing strategic acquisitions in the cyber security, information technology.
Castellum is at the Post-IPO Equity stage.
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"Castellum — Funding & Investors." VCBacked, June 12, 2025, https://www.vcbacked.co/company/castellum. Accessed August 14, 2026.
VCBacked. (2025). Castellum — Funding & Investors. Retrieved August 14, 2026, from https://www.vcbacked.co/company/castellum
{{cite web |title=Castellum — Funding & Investors |url=https://www.vcbacked.co/company/castellum |website=VCBacked |access-date=August 14, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated