| CSCoalogix Scr-tech | Charlotte | NC | — | ◇ UNVERIFIED |
| CSCool Solutions Manufacturing, INC. | Brisbane | CA | — | ◇ UNVERIFIED |
| CCCs Clean Solutions INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| DSD\00dcrr Systems INC | De Pere | WI | — | ◇ UNVERIFIED |
| DCD. C. Sales, INC. | Rock Hill | SC | — | ◇ UNVERIFIED |
| D8D&d 8-24, LLC | Temecula | CA | — | ◇ UNVERIFIED |
| DCDonaldson Company INC | Stockton | CA | — | ◇ UNVERIFIED |
| DEDri Eaz Products INC Burlington | Burlington | WA | — | ◇ UNVERIFIED |
| DADustless Air Filter Company, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| EEcm-usa | Pleasant Prairie | WI | — | ◇ UNVERIFIED |
| FFiltrax | Martin | TN | — | ◇ UNVERIFIED |
| FCFisen CORP. | Dutton | MI | — | ◇ UNVERIFIED |
| FCFlanders Corporation | Bartow | FL | — | ◇ UNVERIFIED |
| FLFlanders/csc, LLC | Washington | NC | — | ◇ UNVERIFIED |
| FPFlanders Precisionaire INC - Bartow Fl Manufacturing Facilit | Bartow | FL | — | ◇ UNVERIFIED |
| FCFluid Cooling Systems, LLC | Flint | MI | — | ◇ UNVERIFIED |
| FNFormer / No Longer Operating Here Twin City Fan Companies LTD. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| FFFtg Filtration Technologies Group | Modesto | CA | — | ◇ UNVERIFIED |
| GEGeneral Electric Company | Raytown | MO | — | ◇ UNVERIFIED |
| GMGilbert Metal Prod | El Monte | CA | — | ◇ UNVERIFIED |
| GSGraves Spray Supply, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
 Greenheck Fan CORP | Rocklin | CA | — | ◇ UNVERIFIED |
| Greenheck Fan Corporation - Facility 2 | Schofield | WI | — | ◇ UNVERIFIED |
| GLGreen Land 2, LLC | Batavia | IL | — | ◇ UNVERIFIED |
| GBGulf Breeze Filter INC | Venice | FL | — | ◇ UNVERIFIED |
| HPHoneywell Phoenix Controls | Acton | MA | — | ◇ UNVERIFIED |
| HIHorton INC | Westminster | SC | — | ◇ UNVERIFIED |
| HAHowden Airdynamics | Corona | CA | — | ◇ UNVERIFIED |
| HBHowden Buffalo-closed | Camden | SC | — | ◇ UNVERIFIED |
| HNHowden North America INC. (0679020075) | New Philadelphia | OH | — | ◇ UNVERIFIED |
| IRInvestments R Us, INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| JIJancel INC | Cranford | NJ | — | ◇ UNVERIFIED |
| JAJosefek Acquisition Corp | Glendale Heights | IL | — | ◇ UNVERIFIED |
| JRJ. R. Schneider Co., INC. | Chadds Ford | PA | — | ◇ UNVERIFIED |
| KIKoby Incorporated | Marlborough | MA | — | ◇ UNVERIFIED |
| KFKoch Filter Corporation | Louisville | KY | — | ◇ UNVERIFIED |
| KKKono Kogs | Green Bay | WI | — | ◇ UNVERIFIED |
| LCLoren Cook Co-barnes St Plant | Springfield | MO | — | ◇ UNVERIFIED |
| MPMac Process, LLC | Sabetha | KS | — | ◇ UNVERIFIED |
| MLMedair Labs, LLC | Cleveland | OH | — | ◇ UNVERIFIED |
| MHMeggitt (north Hollywood), INC | Corona | CA | — | ◇ UNVERIFIED |
| MAMercer Area Jr Sr High Sch | Mercer | PA | — | ◇ UNVERIFIED |
| MTMet-pro Technologies, LLC | Adelanto | CA | — | ◇ UNVERIFIED |
| MAMid Atlantic Filter, LLC | Salisbury | MD | — | ◇ UNVERIFIED |
| MCMiller Control and Manufacturing CO INC | Clinton | NC | — | ◇ UNVERIFIED |
| MCMunters CORP - Munters Baton Rouge | Baton Rouge | LA | — | ◇ UNVERIFIED |
| MCMunters Corporation | Lansing | MI | — | ◇ UNVERIFIED |
| NENational Environmental Fiberglass LLC | Adelanto | CA | — | ◇ UNVERIFIED |
| NSNice Shot, LLC Dba Redding Indoor Shooting Range | Redding | CA | — | ◇ UNVERIFIED |
| NANu Aire INC | Long Lake | MN | — | ◇ UNVERIFIED |
