Castellum, Inc.

Castellum, Inc. is a U.S.-based technology services company built around cybersecurity, IT, electronic warfare, information warfare, and information operations capabilities. Its work is centered on government and mission-critical customers, especially U.S. federal defense, intelligence, and civilian agencies, with additional exposure to financial services, healthcare, legal, and other large-data users. The company combines organic growth with an acquisition strategy, having completed multiple acquisitions since 2019 to broaden capabilities and customer access. Its offerings are delivered as services and solutions rather than packaged software, with a strong emphasis on contract execution, program support, and modernization work.

−2,5 %

36,6 %

−4,5 %

+18,1 %

4.40

4.40

— Castellum, Inc.
%
Cybersecurity and information assurance30% Security, policy support, and protection services for government and enterprise data environments.
Software and systems engineering25% Software development, software engineering, MBSE, and turnkey system modernization work.
Intelligence and mission support20% Intelligence analysis, strategic planning, and operational support for national security missions.
Program management and advisory services15% Program management, mission planning, and policy support for complex government programs.
Electronic warfare and information operations10% Specialized defense-related capabilities in electronic warfare, cyberspace operations, and information dominance.

Castellum primarily serves agencies and departments of the U.S. government, including defense, intelligence, federal...

  • U.S. federal defense and intelligence agenciesprimary

    Buy cybersecurity, electronic warfare, intelligence analysis, and mission support for national security programs.

  • Federal civilian agenciesprimary

    Buy software, systems modernization, program management, and information assurance services.

  • State and local governmentssecondary

    Buy IT and mission support services where secure modernization and operational support are needed.

  • Commercial large-data userssecondary

    Financial services, healthcare, legal, and similar customers buy analytics and secure IT capabilities.

  • Defense industry partners and subcontracting channelssecondary

    Teaming partners and primes buy specialized capabilities or use Castellum as a subcontractor on programs.

Castellum is overwhelmingly U.S.-centric, with revenue primarily tied to U.S. federal, state, and local government...

  • Revenue is primarily generated in the United States
  • Core demand comes from U.S. federal, state, and local government customers
  • Defense and intelligence work ties the business to U.S. national security spending
  • The company references domestic and international customers, but U.S. exposure dominates
  • Acquisition strategy includes expanding geographic footprint and client access

Castellum is pursuing a dual strategy of organic growth and acquisition-led expansion in adjacent national security...

01
Acquire complementary technology services businessesshort-term

Acquisitions are used to add capabilities, customers, and scale faster than organic growth alone.

02
Win and expand U.S. government contractsmedium-term

Government contracts are the main revenue engine and determine utilization, backlog, and growth.

03
Improve operating scale and marginsmedium-term

Management wants larger contract volume to reduce labor burden and improve profitability.

Castellum remains exposed to the execution risks of a relatively limited consolidated operating history, which makes it...

high

Limited operating history at current scale

The company has grown through acquisitions and has a relatively short consolidated track record, making execution and profitability less predictable.

Scope
Company-wide
Materiality
high
high

Dependence on U.S. government budgets and contract awards

Most revenue comes from government customers, so delays, protests, or funding changes can affect revenue timing and volume.

Scope
U.S. federal, state, and local government contracts
Materiality
high
medium

Competition from larger incumbents

Northrop Grumman, CACI, Peraton, and Booz Allen have greater scale and resources, which can reduce win rates and pricing power.

Scope
Defense and federal services markets
Materiality
high
medium

Personnel retention and staffing risk

The business depends on specialized engineers, analysts, and cleared personnel, and labor shortages can impair delivery and growth.

Scope
Cybersecurity, engineering, and mission support teams
Materiality
high
medium

Acquisition integration and goodwill risk

Growth strategy relies on acquisitions, which can create integration issues and future impairment if expected synergies do not materialize.

Scope
Purchased businesses and intangible assets
Materiality
medium
Government contract revenue recognition
Revenue and gross margin
Goodwill and intangible asset impairment
Earnings and balance sheet carrying values
Purchase accounting for acquisitions
Amortization expense and goodwill
Derivative liabilities and warrant accounting
Net income and equity

: 28.4.2026