| MMMunson Machinery CO INC | Utica | NY | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| MIMuthig Industries INC | Fond Du Lac | WI | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| NINailor Industries of Texas | Houston | TX | Fabricated Metal Product Manufacturing332322 | 500+ | ◐ LIKELY ACTIVE |
| NBNational Bulk Equipment INC | Holland | MI | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| NCNational Carwash Solutions | Grimes | IA | Machinery Manufacturing333318 | 100-499 | ◐ LIKELY ACTIVE |
| NONational Oilwell Varco Houston Repair Center | Houston | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| NVNational Vision INC | St. Cloud | MN | Machinery Manufacturing333310 | — | ◐ LIKELY ACTIVE |
| NBNationwide Boiler INC | Fremont | CA | Fabricated Metal Product Manufacturing332410 | 20-99 | ◐ LIKELY ACTIVE |
| NHNavistar Huntsville Expansion | Huntsville | AL | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| NANcc Automated Systems, INC. | Souderton | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| NNetafim | Fresno | CA | Plastics and Rubber Products Manufacturing326122 | 100-499 | ◐ LIKELY ACTIVE |
| NCNew Center Stamping | Detroit | MI | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| NHNew Hampshire Industries | Claremont | NH | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| NMNicholson Manufacturing LTD. | Pell City | AL | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| NINigrelli INC | Kiel | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| NCNikkiso Cryo, INC. | North Las Vegas | NV | Machinery Manufacturing333911 | 100-499 | ◐ LIKELY ACTIVE |
| NENordson Extrusion Dies Industries, LLC | Chippewa Falls | WI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| NINor-lake INC | Hudson | WI | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| NMNortheast Manufacturing Co., INC. | Stoneham | MA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| NCNorthland CORP | Greenville | MI | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| NCNorwalk CO. , INC. | Norwalk | CT | Printing and Related Support Activities323120 | 1-19 | ◐ LIKELY ACTIVE |
| NHNov Houston Creekmont Facility | Houston | TX | Machinery Manufacturing333132 | — | ◐ LIKELY ACTIVE |
| NRNov Reedhycalog | Conroe | TX | Machinery Manufacturing333132 | — | ◐ LIKELY ACTIVE |
| NINypro Incorporated | Clinton | MA | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| NINypromold INC | Clinton | MA | Machinery Manufacturing333511 | 100-499 | ◐ LIKELY ACTIVE |
| OAOiles America CORP | Concord | NC | Machinery Manufacturing333613 | 100-499 | ◐ LIKELY ACTIVE |
| OMOliver Manufacturing Company, INC. | La Junta | CO | Machinery Manufacturing333111 | 20-99 | ◐ LIKELY ACTIVE |
| OOOmega Optical INC | Brattleboro | VT | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| OSOptimax Systems INC | Ontario | NY | Machinery Manufacturing333310 | 100-499 | ◐ LIKELY ACTIVE |
Optomec INC | Albuquerque | NM | Machinery Manufacturing333517 | — | ◐ LIKELY ACTIVE |
| OCOptometrics Corporation | Ayer | MA | Machinery Manufacturing333314 | 20-99 | ◐ LIKELY ACTIVE |
| PEPaccar Engine Company | Columbus | MS | Machinery Manufacturing333618 | 500+ | ◐ LIKELY ACTIVE |
| PPPace Packaging | Fairfield | NJ | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| PCPall Corporation | Putnam | CT | Textile Product Mills314999 | 20-99 | ◐ LIKELY ACTIVE |
| PHParker Hannifin CORP | Greeneville | TN | Machinery Manufacturing333112 | — | ◐ LIKELY ACTIVE |
| PHParker Hannifin CORP Cylinder Division | Eugene | OR | Machinery Manufacturing333995 | — | ◐ LIKELY ACTIVE |
| PIParlec INC | Fairport | NY | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| PEPcore Electric CO. | Leroy | NY | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| POPeerless of America INC | Effingham | IL | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| PSPeerless Saw | Groveport | OH | Fabricated Metal Product Manufacturing332216 | 20-99 | ◐ LIKELY ACTIVE |
| PMPenn Machine CO INC | Johnstown | PA | Machinery Manufacturing333131 | 20-99 | ◐ LIKELY ACTIVE |
| PWPentair Water | Kansas City | KS | Machinery Manufacturing333911 | — | ◐ LIKELY ACTIVE |
| PPermco | Streetsboro | OH | Machinery Manufacturing333911 | 100-499 | ◐ LIKELY ACTIVE |
Pewag Traction Chain, INC | Rocklin | CA | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| PHP & H Mfg CO | Shelbyville | IL | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| PRPik Rite INC | Lewisburg | PA | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| PEPlastics Extrusion Machinery LLC | Mcpherson | KS | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| PTPlastic Trim LLC | East Tawas | MI | Machinery Manufacturing333248 | 100-499 | ◐ LIKELY ACTIVE |
| PFPleatco Filtration | Louisville | KY | Machinery Manufacturing333998 | 20-99 | ◐ LIKELY ACTIVE |
| PPPlum Point Energy Station | Osceola | AR | Machinery Manufacturing333611 | — | ◐ LIKELY ACTIVE |