About

In 1987, Horsley Witten Hegemann Inc. opened its first offices in Barnstable and Cambridge, MA. Our first projects focused on wellhead protection and community planning in Hyannis, Nantucket, and Walpole, MA. We changed our name in 1992 to Horsley and Witten, then Horsley Witten Group (HW).

HW is a mission driven, engineering, design, and environmental consulting firm based in Sandwich, Mass., with offices in Boston, MA, Providence, RI, Exeter, NH, and St. Croix, U.S. Virgin Islands. Incorporated in 1988, our clients benefit from our 36+ years of successful projects and strong partnerships. Our mission is to address environmental and social challenges with sustainable solutions. With 70+ experienced staff, we manage complex projects in New England and across the globe. Our successes and project accolades are attributed to innovation, responsiveness, and client satisfaction.

While our projects have received many awards, we are most proud of our over 80% client return rate. We attribute our continued success to our team of skilled creative professionals who are dedicated to protecting and restoring our natural resources. As a growing firm, we maintain a commitment to our values which include giving back to our communities, volunteerism, and support for nonprofit organizations. We are dedicated to working on critical societal issues by supporting diversity, equity, and inclusion in our work and with our partners.

HW design professionals believe in a nature-based solutions approach for solving environmental and climate-related challenges. Our projects frequently combine civil engineering, urban design, climate resiliency, and landscape architecture. We develop solutions that result in functional and vibrant places in balance with nature.