EMS was founded in 1983, with the original goal of providing management and project-design consulting for federal agencies, trade associations, and state and local governments. As EMS grew, so did its reputation for quality. During the early years, EMS thrived as a subcontractor to larger companies. Since then, EMS's client base has expanded, as has its national reputation for quality and integrity, and the company has successfully managed 18 multi-year prime contracts for the Environmental Protection Agency, Nuclear Regulatory Commission, and Department of Transportation.