HGL is a full-service environmental science, engineering, and construction firm (SB under NAICS 562910) with over 30 years of ... experience responding to environmental and water resource challenges. An employee-owned company established in 1987, HGL has earned a reputation of continually exceeding customer expectations. The Engineering News-Record has listed HGL as one of the top 200 environmental firms since 2001. HGL is committed to providing the best services and products on schedule and within budget and strives to exceed its customers’ expectations by hiring and retaining the best people and by staying abreast of the latest technologies in HGL’s fields of specialization. Consistent high-quality work has resulted in repeat business and has earned HGL ratings of “Exceptional” from our Federal Government customers. HGL is an industry leader with over 30 years of experience providing comprehensive environmental engineering services by implementing innovative, effective, and sustainable solutions that address today’s environmental, infrastructure, and natural resource challenges. HGL provides environmental engineering, remediation, and construction services, as well as Military Munitions Response Program support to the U.S. Department of Defense, U.S. Air Force, U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Department of Energy, and other federal and state government clients. read more