EN4S, LLC (pronounced en fours) is a Small Business Administration certified Women-Owned Small Business (WOSB) and HUBZone company offering mission-enabling support services that overcome some of the most complex challenges confronting our clients. We offer our customers expertise in key disciplines and domains such as aerospace (i.e., space systems, ground systems, launch vehicles, and in-orbit maintenance), design engineering and manufacturing, software assurance, technology transfer and commercialization, information technology, marketing communications and branding, and information dissemination.

Our experience includes support for research and development organizations such as the National Aeronautics and Space Administration, the National Oceanic and Atmospheric Administration, the National Institute of Allergy and Infectious Diseases, the National Cancer Institute, and the National Heart, Lung, and Blood Institute. Additionally, we offer our customers operational capabilities gained from performing work for both public and private sector clients such as the Securities and Exchange Commission, the U.S. Department of Agriculture, the General Services Administration, the Federal Reserve Bank, Zodiac Aerospace, Bank of New York Mellon, and GEICO.