Duffield is Growing in 2021


January 8, 2021


Duffield Associates, LLC (“Duffield”) has combined with two other engineering and geoscience consulting firms to form a robust national organization that will result in comprehensive environmental, energy, water and civil infrastructure capabilities.  The combination includes Hull & Associates, LLC (“Hull”), headquartered in Columbus, Ohio,  and HSW Consulting, LLC (“HSW”), headquartered in Tampa, Florida.  The combination resulted in over 275 staff in 20 offices, across 8 states.

The former leaders of Duffield, Hull and HSW will continue to actively participate as senior leaders within the organization. Gerry Salontai, CEO of the combined firm, explained, “Each of these companies has outstanding leadership in place that will allow continued success individually while building a combined leadership team moving forward. Hull, HSW and Duffield provide a complementary set of capabilities that will expand service offerings to our growing client base within the combined companies.”

The entire Duffield team, offices and service offerings will remain an integral part of the combined firm and will be bolstered by additional depth and expertise from the new partners.  EVP and Duffield President Guy Marcozzi offers, “We’re excited to take this deliberate, strategic next step for Duffield Associates, because it enhances our technical breadth and depth to serve our clients, enables us to pivot more effectively towards today’s environmental and infrastructure needs, and provides exciting new opportunities for our professional team.”

With offices in Delaware, Pennsylvania, Maryland, New Jersey, Ohio, New York, Florida and Texas, the combined firm has a broad geographic reach and builds on an already comprehensive capability set in environmental site assessment and remediation, energy, water resources and treatment, site civil infrastructure, and climate change resiliency, along with marine, coastal and geotechnical engineering. The client sector markets include the industrial, real estate, energy, transportation and government sectors.

“We look forward to the enhanced value and synergy that this new partnership will bring to our clients and the new opportunities this collaboration will bring to our exceptional team, whose dedication and commitment have enabled Duffield to thrive and grow,” says Duffield Chief Operating Officer Deirdre Smith.

The combined firm will continue to grow organically, by attracting top talent and providing superior service to clients, and inorganically, by adding like-cultured firms that expand geographic reach, complement service offerings and strengthen the diversity and experience from the team of professionals.  Duffield is growing and looking to hire talented and motivated professionals who share our passion and values.