CTOs on the Move

E3/Sentinel, a NewSpring Holdings company, is a mission-focused services and solutions company headquartered in McLean, VA. Since E3 Federal Solutions and The Sentinel Company combined forces in 2018, E3/Sentinel works as a combined entity to draw upon their long histories of consistent growth and high performance in the federal services market. The company`s services and solutions are designed, tailored, and executed based on the experience both organizations bring from helping their Homeland Security, Defense, Intelligence, and Federal Civilian customers solve complex problems.