About Us

Horsley Witten Group, Inc. is a leading-edge engineering, planning, and environmental consulting firm providing sustainable design solutions for over 30 years. Over that period,our success in terms of projects and clients can be attributed to a combination of innovation,responsiveness, and client satisfaction. Our dedicated staff of highly skilled professionals manages complex projects in New England and beyond. We excel as a liaison between decision makers and the public, translating technical subjects into understandable concepts.Our multidisciplinary-team approach integrates resilience, sustainable civil engineering, urban design, and landscape architecture. HW’s award-winning projects address critical environmental challenges including climate change, coastal resiliency, watershed health, and open space and natural resource protection.Our services include site design, green infrastructure, smart growth planning and community design, zoning regulation review, water and natural resources assessment, and emergency preparedness. Our clients include the U.S. EPA, NOAA, and the U.S. Department of Justice as well as more than 100 New England municipalities, several state agencies, tribal agencies, non-profit organizations, private organizations, and multiple universities and colleges. Horsley Witten Group is a New England-based corporation headquartered in Sandwich, MA with regional offices in Boston, MA, Providence, RI, and Exeter, NH. For more information, visit us at horsleywitten.com