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.

Our team of dedicated colleagues allow us to provide a wide range of skills and expertise along with unmatched delivery excellence while maintaining an innovative and entrepreneurial culture that is laser-focused on positive customer outcomes. The services and solutions we provide include: Program Management; Strategic Communications; Policy Analysis; Stakeholder Management; Acquisition Management; Systems Engineering and Technical Assistance; Facilities and Engineering Support; and Enterprise IT Service Management Solutions.

• Excellence in Quality Management: ISO 9001:2015 (Held since 2015; Upgraded in 2018)
• Excellence in Environmental Management: ISO 14001:2015 (Certified in 2018)
• Excellence in Providing Services: CMMI Services (Version 1.3) Maturity Level 3 (Held since 2016, Expires 2020)