Epsilon C5I, Inc. is a Wholly Owned Subsidiary of Epsilon Systems Solutions, Inc.

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We provide problem-centric mission management and operationally relevant support to NASIC, Air Force, Space Force, DoD, IC, and National Security customers.


We are ready to provide advanced, mission-focused, operationally-relevant support based on our key capabilities in:

Analysis and Production

Technological solutions and specialized tools to deliver exactly what our clients need.

Research and Development

From analysis, planning, and testing through strategic development, we find the solutions.

Sustainment and Support

Full life-cycle support with leading-edge sustainment methods and techniques.

Program and Project Management

Epsilon C5I has proven program and project management expertise.

CMMI Level 3 Appraisal

Epsilon C5I was appraised for Capability Maturity Model Integration (CMMI) Level 3 for Software Development.

ISO 9001:2015 Certification

Epsilon C5I, Inc. is ISO 9001:2015 certified for life-cycle software development, which includes software engineering, test, design, configuration management and project management for both federal government and commercial clients.

Epsilon C5I ISO 9001:2015 Certificate

Core Strengths

We have a robust set of proven capabilities that permit us to support advanced multi-domain initiatives and operations.

Core strengths include:


Team Epsilon C5I maintains direct client support at multiple security levels. Our expert C5I team supports Department of Defense, Federal and Commercial clients with tools and services that enable rapid and accurate decision making.

Our clients include:


U.S. Air Force

U.S. Space Force

Air Force GPS SE&I

Department of Homeland Security

National Geospatial-Intelligence Agency

About Epsilon C5I


Epsilon C5I provides innovative advanced products and services to government organizations and intelligence agencies, U.S. military, and R&D centers.


Epsilon C5I actively collaborates with clients, understands their operational needs, and delivers superior products and services.


Our size allows us to be more innovative, agile, and faster than our larger industry colleagues. Epsilon C5I is a responsive and flexible partner determined to meet our clients’ needs.

Since 1986

Formerly KAB Laboratories, Epsilon C5I is a wholly owned subsidiary of Epsilon Systems, with locations across the nation. We have more than 35 years of experience serving the defense and space industries.

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