| BTBeko Technologies, CORP. | Atlanta | GA | Machinery Manufacturing333413 | 20-99 | ◐ LIKELY ACTIVE |
Greenheck Fan CORP | Rocklin | CA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| CCCarnes CO | Verona | WI | Machinery Manufacturing333410 | 20-99 | ◐ LIKELY ACTIVE |
| CBChicago Blower CORP | Glendale Heights | IL | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
Filtration Group INC | Joliet | IL | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| GFGeneral Filters, INC. | Novi | MI | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
Hartzell Fan, INC. | Piqua | OH | Machinery Manufacturing333412 | — | ◐ LIKELY ACTIVE |
| IIIap INC | Phillips | WI | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| MLMenardi LLC | Trenton | SC | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
| RRevcor | Carpentersville | IL | Machinery Manufacturing333412 | 100-499 | ◐ LIKELY ACTIVE |
Flanders Filters, Inc.-aaf Washington | Washington | NC | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| HBHardinge Brothers INC | Elmira | NY | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| RFRobinson Fans | Zelienople | PA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| TCTwin City Clarage | Pulaski | TN | Machinery Manufacturing333412 | — | ◐ LIKELY ACTIVE |
Allison Enterprises, INC | Groesbeck | TX | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Bionav LLC | Springfield | MO | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Df Fan Services INC | West Chicago | IL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Donaldson Company, INC. | Bloomington | MN | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Extreme Microbial Technologies LLC | Moraine | OH | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| GAGrooms Aluminum Processing, LLC | Ashville | AL | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
Healthy Air INC. | Miami | FL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Hsq LLC | Bertram | TX | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Macroair Technologies, INC. | San Bernardino | CA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| PAPure Air Solutions of Pa, LLC | Conneautville | PA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Systech Design INC. | Exton | PA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Tracs Manufacturing, LLC | Rockledge | FL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| AAaf-bartow | Bartow | FL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| AFAAF Flanders Oklahoma | Ardmore | OK | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| AFAir Filtration Company | Corydon | IA | Machinery Manufacturing333411 | 20-99 | ◐ LIKELY ACTIVE |
| AFAirmaster Fan Company | Clarklake | MI | Machinery Manufacturing333412 | 20-99 | ◐ LIKELY ACTIVE |
| AFAirPro Fan & Blower co. -SOUTH | Rhinelander | WI | Machinery Manufacturing333413 | 1-19 | ◐ LIKELY ACTIVE |
| AQAir Quality Engineering, Inc. | Minneapolis | MN | Machinery Manufacturing333412 | 20-99 | ◐ LIKELY ACTIVE |
| AAAmerican Aldes Ventilation Corporation | Bradenton | FL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| ACAmerican Coolair CORP | Jacksonville | FL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| AWAndritz Western Pneumatics - Ruston | Ruston | LA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| BFBarron Fan Technology, INC. | Alabaster | AL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| BEBrownlee-morrow Engineering CO INC | Birmingham | AL | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| CACamfil Apc | Jonesboro | AR | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| CCCs Clean Solutions INC. | Phoenix | AZ | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| E1ebmpapst 100 | Farmington | CT | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| ETebmpapst TN | Telford | TN | Machinery Manufacturing333412 | 100-499 | ◐ LIKELY ACTIVE |
| EBExcelsior Brass Works | Blandon | PA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
Filtration Group | York | SC | Textile Mills313110 | 100-499 | ◐ LIKELY ACTIVE |
Filtration Group LLC | Santa Rosa | CA | Machinery Manufacturing333411 | 20-99 | ◐ LIKELY ACTIVE |
| IVIndustrial Ventilation, Inc. - NA | Nampa | ID | Machinery Manufacturing333413 | 20-99 | ◐ LIKELY ACTIVE |
| INIqair North America, INC. | La Mirada | CA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| KIKeltec INC | Twinsburg | OH | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| LILarkin Industries, INC. | Birmingham | AL | Machinery Manufacturing333413 | 20-99 | ◐ LIKELY ACTIVE |
| MAMcgill Airclean LLC | Columbus | OH | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| MKMd Kinney | Springfield | MO | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |