| SSSekisui Spr Americas, LLC | Atlanta | GA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SPServ-all Products, LLC | Irving | TX | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SCSigma CORP | Sauk Village | IL | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SPSilver-line Plastics Corporation | Lawton | OK | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SCSpears Caney INC | Caney | KS | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| SMSpears Manufacturing CO. | Stockton | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SMSpears Manufacturing Company | Orlando | FL | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SPSpecialty Products Company | Enid | OK | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SStadler-viega | Mc Pherson | KS | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SPSuperlon Plastic Pipe | Tacoma | WA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| SDSyntech Development and Manufacturing INC. | Corona | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TITbs Irrigation Products INC Dba Tbs Manufacturing | El Cajon | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TITenn-plast Incorporated | Memphis | TN | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| THThe Harrington Corporation | Lynchburg | VA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TThermo-mold | Houston | TX | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TDTimewell Drainage Products & Services | Sibley | IA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TWTogether We Pipe | West Palm Beach | FL | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TAToro Agricultural Irrigation | Madera | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TFTrap Flush L.L.C. | Sterling Heights | MI | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TPTrucomp Pipe LLC | Ottawa | KS | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TPTrucomp Pipe LLC | Kansas City | KS | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| TGTubi Green Bay 5002 and 5003 | Bartow | FL | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| UPUnited Poly Systems | Albuquerque | NM | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| UIUponor INC | Hutchinson | MN | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| UNUponor North America | Hutchinson | MN | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| USUrethane Specialties CO INC | Goodlettsville | TN | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Stapleton | AL | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| VBVan Buern Pipe Co., INC. | Mount Vernon | IN | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| VWVPC Walla Walla LLC | Walla Walla | WA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| W2Warehouse 2000 INC | Firebaugh | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| WPWestern Plastics INC | Temecula | CA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| WHWlp Holding CORP. | Snyder | TX | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| WLW L Plastics CORP | Cedar City | UT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
