HW is a full-service environmental science and engineering firm with offices located in Sandwich and Newburyport, Massachusetts, and Providence, Rhode Island.  Incorporated in 1988, our staff consists of 40 professionals, including engineers, scientists, planners, environmental analysts, licensed site professionals, surveyors, Leadership in Energy and Environmental Design Accredited Professionals (LEED APs) and supporting personnel.  We utilize an interdisciplinary approach to our work combining engineering and science with land use planning, economics, and public policy to create innovative solutions to environmental problems.


We believe a good environmental services firm is one that consistently produces quality work, understands their clients’ objectives, and knows how to develop cost effective solutions to meet both regulatory requirements and environmental standards of sustainability.

HW applies a corporate philosophy that starts with the type of services we provide, extends to how we select our clients and continues through to how we undertake our projects.

We believe it is our job to protect our natural resources while exceeding our clients’ expectations for quality professional services. As we move forward, we will strive to work with our employees, our clients and our partners to minimize our footprint on the earth while we maintain a truly sustainable future. We invite our clients and partners to explore with HW the direct and cumulative benefits of environmental sustainability.