Consistently Meeting project schedules, costs, and regulatory requirements
Addressing difficult design and construction issues
on complex environmental projects
We are an ENR Top 200 Environmental Firm
| YEAR | TOP 200 COMPANIES RANKING | HAZARDOUS WASTE RANKING |
|---|---|---|
| 2020 | 66 | 5 |
| 2019 | 57 | 4 |
| 2018 | 56 | 4 |
| 2017 | 64 | 5 |
| 2016 | 63 | 8 |
| 2015 | 51 | 14 |
| 2014 | 46 | 14 |
| 2013 | 42 | 14 |
| 2012 | 42 | 14 |
| 2011 | 30 | 8 |
| 2010 | 38 | 12 |
| 2009 | 36 | 13 |
| 2008 | 40 | N/A |
| 2007 | 38 | 13 |
| 2006 | 38 | N/A |
| 2005 | 40 | 15 |
| 2004 | 39 | 12 |
| 2003 | 31 | 12 |
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 1977 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 Timeline
Since 1979, Sevenson has been an industry leader in environmental remediation services.
Our Growth
Health & Safety is our primary concern at Sevenson
We have successfully developed and implemented site specific health and safety plans since 1979. With a staff that includes 30 full-time Health and Safety Officers that include CHST’s and OHST’s, our Site Safety and Health Officers average 14 years of service.
Why do the best companies choose Sevenson?
"Dollar for dollar, pound for pound, this is the best cleanup (project) I have ever seen." -
David Ullrich, Regional Administrator (retired)
USEPA, Region V,
Chicago, IL
TestimonialsRooted in Remedial Construction
Expanded into Environmental Dredging
Remedial ConstructionEnvironmental DredgingAdditional Services
Project Gallery
Emory River Dredging and Dewatering
Former Clark and McMaster Street MGP Site
Cabot Koppers Superfund Site Phase 1 Remedial Action
Former Kil-Tone Company Superfund Site Operable Unit (OU) 1 Remedial Action Phase 2
Martin Aaron Superfund Site, Remedial Action Phase 1, OU-1
Former Portland Gas Manufacturing (PGM) Site Remediation
New Bedford Harbor Superfund Site
Hatheway and Patterson Superfund Site
PGE Potrero Power Station Sediment Remediation
Former Sunflower Army Ammunition Plant Contaminated Pipe Removal
Former Seneca Falls MGP Site
Study Area 6 Remediation Project
Mitchell Bay Interim Corrective Measure Remediation of Docks 6 and 7
Upland Soil and Contaminated Sediment Removal, IL.
Vanadium Site Operable Unit #3 Remediation
