Firm Description

Stephens Associates Consulting Engineers, LLC provides insightful, cost-saving engineering solutions for bridges, buildings, dams and other infrastructure from our locations in Brentwood, New Hampshire and Wilmington, Massachusetts. SA was established in 1999. In more than 15 years, Stephens Associates Consulting Engineers, LLC has provided engineering/consultation in all New England states.

We are certified by the Commonwealth of Massachusetts, State Office of Minority and Woman Business Assistance (SOMWBA) as a Woman-owned Business Enterprise (WBE) and Disadvantaged Business Enterprise (DBE). We are similarly certified as a Disadvantaged Business Enterprise (DBE) in New Hampshire, Maine and Vermont.


Stephens Associates Consulting Engineers, LLC will provide quality work products and superior client service at a fair price. We will enhance our profession through edification. We will pursue work with qualifications-based selection criteria, and will meet or exceed the expectations of those clients that select us based on those criteria. We are stewards of our client’s needs, our profession, and the public trust. By taking a broader perspective while focusing on quality work and quality service, we will meet these objectives and establish ourselves as technical, professional practice and market leaders in structural and geotechnical engineering and geology in New England.


Our experience includes projects for national and local public agencies, municipalities and private sector clients including seismic, structural and geotechnical engineering and geological evaluations of existing/historic structures. Our computer analysis/design capabilities include two-dimensional finite element modeling of soil-structure interaction for evaluation of movement-sensitive facilities.


Bethel A.H. Stephens, PE | President

Bethel Stephens, PE serves as President and Principal Engineer for Stephens Associates' structural engineering and consulting services.

Robert S. Stephens, PE, PG | Principal Engineer

Robert Stephens, PE is Principal Engineer for Stephens Associates' geotechnical/geological, earthquake and dams consulting services. Mr. Stephens has performed geotechnical, geological, geophysical, earthquake and environmental engineering, hydraulics and/or hydrology on civil works, including buildings and infrastructure, in the United States and overseas.