The EI Group, Inc. (EI) is an environmental, health and safety (EHS) consulting firm headquartered in Research Triangle Park, North Carolina, with branch offices strategically located throughout the United States and the capability to serve a wide variety of industries across the world. Founded in 1989 solely as an environmental consulting firm, EI’s response to its clients’ needs led to a natural progression for the company to widen its scope of services. As a result, EI began providing comprehensive consulting in areas including industrial hygiene, safety and occupational health. EI’s diversification of complementing services has made it the one and only call its clients ever need to make for comprehensive occupational safety and health and environmental engineering consulting.