Fuss & O'Neill, Inc. is a renowned civil and environmental engineering firm with an illustrious history dating back to 1924. With a deep-rooted foundation laid by Hayden Griswold, Sr., the firm has continually evolved through decades of expansion and innovation in line with engineering advancements. Specializing in dam safety and a host of other engineering disciplines, Fuss & O'Neill has developed into a full-service consultancy that caters to a variety of clients, including developers, architects, and educational institutions. Through its Site Engineering and Landscape Architecture (LA) groups, the company breathes life into large-scale projects, facilitating the transformative redesign of communities with sustainable solutions from parking to utility infrastructure.

Armed with over 330 seasoned employees across offices in each New England state and New York, Fuss & O'Neill maintains a commitment to excellence and professional leadership within the industry. The firm's Active Design Group embodies this dedication, focusing on innovative ways to encourage non-vehicular transportation. As part of its expansive service offerings, Fuss & O'Neill provides comprehensive dam safety expertise, which includes on-call engineering services, safety inspections, compliance assistance, and complete project administration from conception to construction. Demonstrating a commitment to ongoing professional development, the firm also offers tailored training programs to ensure clients and their personnel stay abreast of best practices in dam safety management and operations.