Epsilon Systems is a 100% employee-owned company founded in 1998 and headquartered in San Diego, California.

With a presence in more than 20 locations, Epsilon Systems’ customers include the Department of Defense, Department of Energy, Department of Homeland Security and non-profit and commercial customers. Epsilon Systems provides total life cycle support to defense systems, such as basic research, concept development, system architecture, requirements definition and analysis, software development, integration and test, operational support, training, and maintenance and logistics.