Innovating Since 1986
Epsilon C5I began as KAB Laboratories Inc. (KAB) founded by directors John Konotchick and Paul Buote in San Diego, CA. The company grew rapidly, specializing in full software life-cycle and systems engineering support with a workforce of experienced operators and skilled Cyber Security Work Force-compliant engineers.
In 2012, seeking to facilitate the progress and expansion of its own software development and cyber security capabilities, Epsilon Systems acquired KAB. The KAB subsidiary evolved to deliver more specialized products and services, building a customer portfolio in alignment with Epsilon Systems. In 2021, KAB became Epsilon C5I, Inc., a wholly owned subsidiary of Epsilon Systems.

Benefits of Being Employee-Owners
What does being part of a 100% employee-owned company mean for you? It means you benefit from the company’s success by accumulating shares each year that you work for us. The value of our company shares continues to rise, making the Employee Stock Ownership Plan a solid investment in your future.
Epsilon C5I offers a comprehensive benefits package including:
- Company-subsidized Medical and Dental Coverage
- Flexible Spending Plan for Medical and Dependent Care Costs
- Personal Time Off
- Company Paid Holidays
- Employee Stock Ownership Plan
- Profit Sharing
- 401(k) Retirement Plan
- Education Reimbursement Program
- Long Term and Short Term Disability
- Life Insurance
- Employee Assistance Program
See current job openings at Epsilon C5I and Epsilon Systems.
The Values We Live By
These words encapsulate the values we share with our parent company, Epsilon Systems:
- People
- Innovation
- Excellence
- Customer
- Fun
- Integrity
- Nimble
- Community
As our most important asset, Epsilon C5I teammates are treated with dignity and respect. Our leadership is approachable, receptive, and engaged in making the company successful just as we engage to make our clients successful. Our values demonstrate our commitment to go the extra mile – for our clients, employees and business partners.
Read more about the values we share with our parent company, Epsilon Systems.
Epsilon C5I Culture
As part of a 100% employee-owned company, our teammates have a sense of ownership and job satisfaction. We make investments for the company's long-term growth — providing the resources our experts need to prepare for future challenges and requirements.
Our company is experiencing exciting growth and success, and we like to make sure we have fun doing it! Our leaders initiate many enjoyable activities: company art exhibits, picnics, Pi-day pie-making contests, breakfast burrito day, and more! We also believe in giving back to our communities and honoring the work of our country’s veterans.

Teammates supporting our community.
Locations
Click each point on the map for location details and links to current job openings.