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 | N/A | 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 full time staff of 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
Former Hackensack Gas Works Site Area E Sediment Remediation Project
Fort Wayne Former MGP Sediment Remediation and CSO Outfall Improvement
Clean Closure of Five Coal Ash Ponds D.W. Mitchel Generating Station
Former Zephyr Oil Refinery Site – Fire Suppression Ditch Area Remediation
Wagner Creek and Seybold Canal Restoration Project
Bayou d’Inde/Lower Canal Sediment Remediation
Buffalo River Sediment Dredging and Habitat Restoration
Flint River Sediment Remediation East Boulevard Former MGP Site
Horseshoe Road Superfund Site
Indiana Harbor and Canal CDF South Cutoff Wall
River Raisin Area of Concern NAPL Area Sediment Dredging and Capping
Sediment Remediation Acid Brook Delta Dredging and Dewatering
St. Maries Creosote Superfund Site
Study Area 7 Sediment Dredging and Capping
Former Williamsburg Works MGP Site
