| Connecticut Department of Consumer Protection Professional Engineer and Land Surveyor |
| Connecticut Department of Public Health sub-surface sewage installer's license |
| Connecticut Department of Consumer Protection plumbing and piping limited contractor's license P-7 |
| Connecticut Department of Consumer Protection New Home Construction |
| Connecticut Department of Consumer Protection Home Improvement Construction |
| Connecticut Department of Transportation -- Prequalified to perform excavation, site work, utilities, paving, construct and/or repair bridges, and bridge rehabilitation/bridge deck repair |
| Connecticut Department of Administrative Services -- Prequalified to perform sewer and water line construction / rehabilitation / reconstruction, site work and buildings |
| Connecticut Water Company |
| City of Bristol |
| City of New Haven |
| Metropolitan District Commission |
| City of Milford |