Insights

Target Market Focus Castellum Inc. specializes in cybersecurity, electronic warfare, and information technology services primarily for the federal government, presenting a clear opportunity for companies offering advanced defense and national security solutions to provide complementary products or joint offerings.

Strategic Acquisitions Drive Growth With a recent focus on acquisition-led growth and active participation in major industry events, Castellum is likely seeking new technology partners and vendors to expand its capabilities and strengthen its market position.

Financial Expansion Opportunities Having secured recent public financing rounds totaling over $8 million, Castellum is potentially open to additional funding or partnerships that can fund research, development, or further acquisitions in high-demand defense technology sectors.

Technology Integration & Partnerships Castellum’s recent collaborations with companies like Quarrio and AmpliTech demonstrate an openness to integrating cutting-edge communications and AI solutions, indicating opportunities for innovative technology providers to engage with them.

Market Presence & Visibility Active participation in industry summits and virtual tech conferences shows Castellum’s effort to increase visibility and forge new business relationships, making networking events and industry expos strategic opportunities for outreach and engagement.

Castellum Inc. Tech Stack

Castellum Inc. uses 8 technology products and services including Adobe, Microsoft Excel, GitLab, and more. Explore Castellum Inc.'s tech stack below.

  • Adobe
    Audio, Video, Graphics
  • Microsoft Excel
    Editors
  • GitLab
    Issue Trackers
  • Cisco
    Network Hardware
  • SAP Maintenance, Repair, and Overhaul
    Operations
  • HTML
    Programming Languages
  • X-XSS-Protection
    Security
  • X-Content-Type-Options
    Web & Portal Technology

Media & News

Castellum Inc.'s Email Address Formats

Castellum Inc. uses at least 1 format(s):
Castellum Inc. Email FormatsExamplePercentage
FLast@castellumus.comJDoe@castellumus.com
50%
FLast@castellumus.comJDoe@castellumus.com
50%

Frequently Asked Questions

Where is Castellum Inc.'s headquarters located?

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Castellum Inc.'s main headquarters is located at 3 Bethesda Metro Center Suite 700 Bethesda, Maryland 20814 United States. The company has employees across 1 continents, including North America.

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 LinkedInCrunchbase.

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

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

How many employees does Castellum Inc. have currently?

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As of March 2026, Castellum Inc. has approximately 47 employees across 1 continents, including North America. Key team members include Chief Financial Officer: D. B.Chief Operating Officer: A. M.Vice President Of Human Resources: E. E.. 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 AdobeMicrosoft ExcelGitLabCiscoSAP Maintenance, Repair, and OverhaulHTMLX-XSS-ProtectionX-Content-Type-Options.

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 March 2026, Castellum Inc. has raised $5M 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.

Defense and Space ManufacturingMaryland, United States11-50 Employees

Castellum, Inc. (NYSE: CTM) is a new technology company executing strategic acquisitions in the cyber security, information technology, information warfare, and electronic warfare space. In June 2019, the company brought on a new management team specifically to pursue an acquisition-led growth strategy. The company completed its first acquisition in November 2019. Contact us at info@castellumus.com.
WORK WITH US
NYSE: CTM
CONTRACT VEHICLES:
General Services Administration (GSS)
Professional Services Schedule (PSS)
Navy Seaport-e
Find our stock ticker here: https://www.nyse.com/quote/XASE:CTM

Section iconCompany Overview

Headquarters
3 Bethesda Metro Center Suite 700 Bethesda, Maryland 20814 United States
SIC Code
3761 - Guided Missiles and Space Vehicles
NAICS Code
336414 - Guided Missile and Space Vehicle Manufacturing
Founded
2019
Employees
11-50

Section iconFunding & Financials

  • $5M

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

  • $1M$10M

    Castellum Inc.'s revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $5M

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

  • $1M$10M

    Castellum Inc.'s revenue is estimated to be in the range of $1M$10M

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