Leaders in Environmental Remediation Since 1979

Addressing difficult design and construction issues on complex environmental projects

Explore Our Services

Why Do The Best Companies Chose Sevenson

“

A team is only as good as all its parts and as our General Contractor you have done an incredible job executing our project

LTC Ramon BriganttiCommanding Officer, USACE Philadelphia District
“

Sevenson delivered the complex Bayou d’Inde/Lower Canal sediment remediation project on time, on budget, and most importantly safely.”

Wendell MearsBayou d’Inde/Lower Canal Sediment Remediation Project
“

Sevenson demonstrated an outstanding ability to work in a positive and constructive manner with all interested parties which has been critical to the success of this project

Diego GarciaUSEPA Project Manager, Cornell-Dubilier Electronics Superfund Site
“

I would like to recognize the professionalism, responsiveness, great attitude and cooperative spirit demonstrated by your entire team

Patrick T. MartinPE, BCEE SNPE, Vandemark Chemical Creek Bank Corrective Measures Project
“

Sevenson’s ability to bring the right personnel, the right equipment, and its safety and quality programs to bear on the Harrison project has been greatly appreciated.”

Jacques BenarochPE, PMP, Senior Project Manager at the Former Harrison MGP Site
“

“(Good things) happen when we, as a team, listen, plan and execute, and listen some more. It was a great outcome…. Thanks for all your hard work. It does show!”

Marc B. OkinNiSource, Inc. Remediation Manager
“

Sevenson is very organized, plans well, anticipates challenges, and executes the work at a high level. … The overall quality of work is excellent.”

Robert Vanoer, JrPE, COR/Project Engineer for USACE New England District
“

Sevenson performed at the highest standards and completed a complex project on schedule and under budget.

Max ReyhaniPresident of TPG for Sediment Remediation Project at Potrero Power Plant
“

Thank you for all the great work you planned and executed for us over the last 20 years.

Program ManagerRCRA Corrective Actions for Midwest Project

About Sevenson

Sevenson Environmental Services, Inc., provides a comprehensive range of remediation services for the cleanup of sites and facilities contaminated by hazardous materials. Sevenson was founded in 1917 as a general contractor, and entered the environmental cleanup business in 1979 after being selected as the principal contractor for remediation work at the Love Canal Superfund site in Niagara Falls, New York.

Our History

Sevenson on LinkedIn

Rooted in Remedial Construction
Expanded into Environmental Dredging

Since our inception, Sevenson has been a leader in remedial construction, delivering safe, efficient, and results-driven solutions for complex environmental challenges. Our foundation is built on decades of expertise in restoring contaminated sites to productive use.

Remedial Construction

Since our inception, Sevenson has been a leader in remedial construction, delivering safe, efficient, and results-driven solutions for complex environmental challenges.

Environmental Dredging

Our dredging operations use advanced techniques and equipment to safely remove, handle, and dispose of hazardous materials from rivers, lakes, and harbors, ensuring environmental health and compliance.

Federal Programs

Sevenson has been providing remedial construction and environmental dredging services to federal agencies since 1985.

Additional Services

Beyond our core specialties, we offer a range of complementary services, including site investigation, dewatering, waste transportation, and long-term environmental monitoring, delivering end-to-end project support.