| WCWescon CORP of Conn | Pawcatuck | CT | Petroleum and Coal Products Manufacturing324121 | 100-499 | ◇ UNVERIFIED |
| HBHain Brothers Materials Company | Windham | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| OGO & G Industries, INC | New Milford | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connecticut | Shelton | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connecticut INC. - Plainfield (wauregan) | Wauregan | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connecticut - North Haven Plant | North Haven | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connecticut - Portland Plant | Portland | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TETilcon - Enfield (shaker) Plant | Enfield | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BIBlackstone Ind INC | Bethel | CT | Petroleum and Coal Products Manufacturing324191 | 20-99 | ◇ UNVERIFIED |
| AEA E N Asphalt INC | Franklin | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AIAmerican Industries, INC. | West Haven | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| ASA. Silverio Asphalt Paving | Danbury | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| DCDubois Chemicals, INC | Sterling | CT | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| EIElite III Asphalt Services, LLC | Brookfield | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| HCHenkel Corporation | Waterford | CT | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| OGO & G Industries INC | Stamford | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| PLPinecroft Landscape & Paving | Hampton | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SYSuzio York Hill Cos | Meriden | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connecticut INC. - Danbury | Danbury | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TCTilcon Connnecticut INC | North Branford | CT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
