| WSWHITLIEJO Specialty Co, LLC | Broussard | LA | 20–99 | ◐ LIKELY ACTIVE |
| ABAkron Brass Plant 2 | Wooster | OH | — | ◇ UNVERIFIED |
| ACAnderson Copper and Brass Fittings | Frankfort | IL | — | ◇ UNVERIFIED |
| AIArmstrong Intl INC | Three Rivers | MI | — | ◇ UNVERIFIED |
| CMCampbell Manufacturing LLC | Bechtelsville | PA | — | ◇ UNVERIFIED |
| CCCarlson Company | Tulsa | OK | — | ◇ UNVERIFIED |
| CICrane Instrumentation & Samplying, Hoke | Spartanburg | SC | — | ◇ UNVERIFIED |
| DPDresser Pipeline Solutions | Bradford | PA | — | ◇ UNVERIFIED |
| FLFlowserve - Lynchburg Operations | Lynchburg | VA | — | ◇ UNVERIFIED |
| HCHarper-wyman Company | Chattanooga | TN | — | ◇ UNVERIFIED |
| JBJ B Inds INC | Aurora | IL | — | ◇ UNVERIFIED |
| OFOpw Fueling Components, LLC | Hamilton | OH | — | ◇ UNVERIFIED |
| PHParker Hannifin Sporlan Div - Plant 3 | Washington | MO | — | ◇ UNVERIFIED |
| PBPrice Brothers CO - Bakewell Tn | Bakewell | TN | — | ◇ UNVERIFIED |
| RIRomac Industries Bothell | Bothell | WA | — | ◇ UNVERIFIED |
| SISmith-blair INC | Texarkana | AR | — | ◇ UNVERIFIED |
| SOSteel & O'brien Manufacturing, INC. | Arcade | NY | — | ◇ UNVERIFIED |
| SMSwagelok Manufacturing Company LLC | Willoughby Hills | OH | — | ◇ UNVERIFIED |
| YHY H America Incorporated Sealant Division | Versailles | KY | — | ◇ UNVERIFIED |
| 1M14 - McAllen | Mcallen | TX | 20–99 | ◐ LIKELY ACTIVE |
| AIAalberts Integrated Piping Systems Americas | Pageland | SC | 100–499 | ◐ LIKELY ACTIVE |
| ADAyia01-mfg-ay - Dubuque | Dubuque | IA | 500+ | ◐ LIKELY ACTIVE |
| AMAzusa Manufacturing Plant | Azusa | CA | 100–499 | ◐ LIKELY ACTIVE |
| BVBrazoria Valve and Fitting | Richwood | TX | 20–99 | ◐ LIKELY ACTIVE |
| BIBrickner Industrial Ne INC | Claymont | DE | — | ◐ LIKELY ACTIVE |
| CBCfwi01-cf-cf - Beloit | Beloit | WI | 20–99 | ◐ LIKELY ACTIVE |
| CUCoster USA Inc. | South Elgin | IL | 20–99 | ◐ LIKELY ACTIVE |
| CDCrosby Dayton LLC dba American Pipe & Vessel | Crosby | TX | 20–99 | ◐ LIKELY ACTIVE |
| DSDixon Sanitary | Pewaukee | WI | 20–99 | ◐ LIKELY ACTIVE |
| DUDresser Utility Solutions | Bradford | PA | 100–499 | ◐ LIKELY ACTIVE |
| FDFadalla Distribution LLC | Pensacola | FL | — | ◐ LIKELY ACTIVE |
| FCFluid Connectors Columbus TFD | Columbus | OH | 20–99 | ◐ LIKELY ACTIVE |
| FCFluid Connectors Eaton | Eaton | OH | 100–499 | ◐ LIKELY ACTIVE |
| FCFluid Connectors Erie IPD | Erie | PA | 20–99 | ◐ LIKELY ACTIVE |
| FCFluid Connectors Lewisburg TFD W | Lewisburg | OH | 20–99 | ◐ LIKELY ACTIVE |
| GIGA Indutries | Mars | PA | 20–99 | ◐ LIKELY ACTIVE |
| HEHunting Energy Services Subsea Technologies Division | Stafford | TX | 100–499 | ◐ LIKELY ACTIVE |
| KMKerkau Manufacturing DBA Baldauf Enterprise | Bay City | MI | 20–99 | ◐ LIKELY ACTIVE |
| KMK-Rain Manufacturing Corporation | Riviera Beach | FL | 20–99 | ◐ LIKELY ACTIVE |
| LNLindal North America | Columbus | IN | 100–499 | ◐ LIKELY ACTIVE |
| LTLokring Technology LLC | Willoughby | OH | 20–99 | ◐ LIKELY ACTIVE |
| MVMinnesota Valve and Fitting Company, INC | Chaska | MN | — | ◐ LIKELY ACTIVE |
| MNMKS Nogales | Nogales | AZ | 20–99 | ◐ LIKELY ACTIVE |
| NPNeo Products Corporation Manufacturing Group | Henderson | TN | 20–99 | ◐ LIKELY ACTIVE |
| PCParker-hannifin Corporation | Columbus | OH | — | ◐ LIKELY ACTIVE |
| PIPatrick Industries/Business Unit 725 MMC | Madison | TN | 20–99 | ◐ LIKELY ACTIVE |
| PPPiping Products, Inc. | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| PSProcess Supply, INC. | Kingsport | TN | — | ◐ LIKELY ACTIVE |
| RBRain Bird Corporation Southpoint | Tucson | AZ | 100–499 | ◐ LIKELY ACTIVE |
Romac Industries, Inc. Canyon Park | Bothell | WA | 100–499 | ◐ LIKELY ACTIVE |