Insights

Federal contracts Castellum is focused on the federal government with active contract vehicles and recent Navy engagement, signaling strong opportunities for U.S. defense and space IT, cyber security, and information warfare services.

Acquisition growth The company pursues an acquisition-led growth strategy and has completed multiple acquisitions since 2019, indicating potential for expanding capabilities and cross-selling to new and existing government customers.

Long-term contracts Recent win with the U.S. Navy Logistics IT MA and reported 2026 revenue growth driven by long-term contracts suggest stability and potential for expanding IT, cyber, and EW services under ongoing programs.

Strategic partnerships Partnerships such as with Quarrio to provide trustworthy agentic AI for government point to opportunities to offer AI-enabled defense and IT solutions, data analytics, and secure automation.

Public market signals Active investor conference participation and management team visibility indicate ongoing capital markets presence; leverage this to align tailored solutions with growth narratives for government clients.

Similar companies to Castellum Inc.

Castellum Inc. Tech Stack

Castellum Inc. uses 8 technology products and services including MATLAB, Ansible, HashiCorp Terraform, and more. Explore Castellum Inc.'s tech stack below.

Media & News

Castellum Inc.'s Email Address Formats

Castellum Inc. uses at least 1 email format:
Castellum Inc. Email FormatsExamplePercentage
FLast@castellumus.comJDoe@castellumus.com
100%

Frequently Asked Questions

What is Castellum Inc.'s official website and social media links?

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Castellum Inc.'s official website is castellumus.com and has social profiles on LinkedIn and Crunchbase.

How much revenue does Castellum Inc. generate?

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As of August 2026, Castellum Inc.'s annual revenue is estimated to be $10M - $25M.

What is Castellum Inc.'s SIC code and NAICS code?

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Castellum Inc.'s SIC code is 3761 - Guided Missiles and Space Vehicles and NAICS code is 336414 - Guided Missile and Space Vehicle Manufacturing.

How many employees does Castellum Inc. have currently?

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As of August 2026, Castellum Inc. has approximately 52 employees across 1 continents, including North America. Key team members include Chief Financial Officer: D. B., Chief Operating Officer: A. M. and Vice President Of Business Development And Capture: T. G. Explore Castellum Inc.'s employee directory with LeadIQ.

What industry does Castellum Inc. belong to?

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Castellum Inc. operates in the Defense and Space Manufacturing industry.

What technology does Castellum Inc. use?

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Castellum Inc.'s tech stack includes MATLAB, Ansible, HashiCorp Terraform, Microsoft 365, OpenAI, Microsoft Active Directory, Microsoft Teams and Adobe Creative Suite.

What is Castellum Inc.'s email format?

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Castellum Inc.'s email format typically follows the pattern of FLast@castellumus.com. Find more Castellum Inc. email formats with LeadIQ.

How much funding has Castellum Inc. raised to date?

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As of August 2026, Castellum Inc. has raised $23M in funding. The last funding round occurred on Jun 12, 2025 for $5M.

When was Castellum Inc. founded?

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Castellum Inc. was founded in 2019.
Castellum Inc. logo

Castellum Inc.

Defense and Space ManufacturingMaryland, United States51-200 Employees

Its customers are federal government agencies, with a focus on defense-related IT and EW services. The company has established procurement channels with the General Services Administration and Navy programs, including Navy Seaport-e. In June 2026, Castellum announced a new United States Navy client and a joint venture secured a position on a Navy Logistics IT contract.

Section iconCompany Overview

SIC Code
3761 - Guided Missiles and Space Vehicles
NAICS Code
336414 - Guided Missile and Space Vehicle Manufacturing
Founded
2019
Employees
51-200

Section iconFunding & Financials

  • $23M

    Castellum Inc. has raised a total of $23M of funding over 7 rounds. Their latest funding round was raised on Jun 12, 2025 in the amount of $5M as a Post IPO Equity.

  • $10M - $25M

    Castellum Inc.'s revenue is estimated to be in the range of $10M - $25M

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