Business Certifications:

  • Massachusetts SDO Certified MBE/WBE 

  • Massachusetts SDO Certified DBE

  • SBA Certified Economically Disadvantaged Women Owned Small Business (EDWOSB) Small Business Purchasing Program

  • Division of Capital Asset Management and Maintenance (DCAMM) - Contractor ID #4110

  • MassDOT Certified - Engineering Field Survey & Total Station AutoCAD Base Plan Services

U.S DOD Mentor-Protégé Program:

In 2003, GSE was accepted into the U.S. Department of Defense 8(a) mentoring program and we are now successful graduates.  Graduating to 8(m) program has given GSE the diversity in service and experience to compete in the Federal arena. In addition to our primary market of municipal and private sector clients, GSE is currently supporting the EPA, USACE, US Navy, USCG, FEMA, US Forest Service as well as several other government agencies.  

 "This program provides a great opportunity for Tetra Tech to mentor a highly innovative and capable firm such as Green Seal as we pursue government-related  opportunities throughout the region." -  Michael Worthy, Tetra Tech