| OMOlivet Machine Tool Engineering Company INC | Olivet | MI | — | ◇ UNVERIFIED |
| OBOlson Brothers CO | Plainville | CT | — | ◇ UNVERIFIED |
| OIOlson Industries, INC. | Atkinson | NE | — | ◇ UNVERIFIED |
| OCOlympia Chimney Supply, Incorporated | Scranton | PA | — | ◇ UNVERIFIED |
| OAOlympic Auto Center | Los Angeles | CA | — | ◇ UNVERIFIED |
| OCOmega Consolidated Corporation | Hilton | NY | — | ◇ UNVERIFIED |
| OMOmega Machine & Tool, INC. | Mentor | OH | — | ◇ UNVERIFIED |
| OTOmega Tool CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OIOmg INC | Agawam | MA | — | ◇ UNVERIFIED |
| OMOm Machine & Tool LLC | Portland | OR | — | ◇ UNVERIFIED |
| OCOmni CORP Ii | Saint Augustine | FL | — | ◇ UNVERIFIED |
| OMOmni Measurement Systems | Winooski | VT | — | ◇ UNVERIFIED |
| OPOmni Precision | Houston | TX | — | ◇ UNVERIFIED |
| OPOmni Precision, INC. | Houston | TX | — | ◇ UNVERIFIED |
 Omni Services | Falconer | NY | — | ◇ UNVERIFIED |
| OPOn-board Pmo, Corporation | Valley View | OH | — | ◇ UNVERIFIED |
| ODOn Demand Edm INC | Blaine | MN | — | ◇ UNVERIFIED |
| OMO'neal Manufacturing Services | Cedar Falls | IA | — | ◇ UNVERIFIED |
| OMO'neal Manufacturing Services | Indianapolis | IN | — | ◇ UNVERIFIED |
| OTOneida Tool Corporation | Redford | MI | — | ◇ UNVERIFIED |
| OROne Rig Design LLC | Poland | ME | — | ◇ UNVERIFIED |
| OSOne Stop Auto Zone INC | Glendale | CA | — | ◇ UNVERIFIED |
| OTOne Ton Welding, Inc. | Panama | IA | — | ◇ UNVERIFIED |
| OAOnex Automation | Duarte | CA | — | ◇ UNVERIFIED |
| OCOnsite Calibartion Service INC | Louisville | KY | — | ◇ UNVERIFIED |
| OCOn-site Custom Fabrication INC. | Hendersonville | TN | — | ◇ UNVERIFIED |
| OSOn Spot Portable Machine CO INC | Livonia | MI | — | ◇ UNVERIFIED |
| OTOn the Level Fabrication, LLC | Winder | GA | — | ◇ UNVERIFIED |
| OTOn the Mean, Machine, LLC | Grand Rapids | OH | — | ◇ UNVERIFIED |
| OCOnward Coatings Dba Wheel Craft | Mentor | OH | — | ◇ UNVERIFIED |
| OFOostman Fabricating & Welding, INC. | Westmont | IL | — | ◇ UNVERIFIED |
| OIOpeo INC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| OOOpEx OpCo Inc. | Minneapolis | MN | — | ◇ UNVERIFIED |
| OIOPMP, Inc. | Tracy | CA | — | ◇ UNVERIFIED |
| OTOp Tanks LLC | Pleasant View | UT | — | ◇ UNVERIFIED |
| OTOptics Technology, INC. | Pittsford | NY | — | ◇ UNVERIFIED |
| OPOptima Precision, Inc. | San Jose | CA | — | ◇ UNVERIFIED |
| OPOptimum Parts Company | Holyoke | MA | — | ◇ UNVERIFIED |
| OPOrange Park Machine, INC. | Orange Park | FL | — | ◇ UNVERIFIED |
| OLOrangeworks LLC | Fort Wayne | IN | — | ◇ UNVERIFIED |
| OMOrchid Mt Juliet LLC | Mount Juliet | TN | — | ◇ UNVERIFIED |
| ODOrdaz Drilling | Paramount | CA | — | ◇ UNVERIFIED |
| OIOregon Industrial Repair INC | Salem | OR | — | ◇ UNVERIFIED |
| OMOregon Machine Works, INC. | Canby | OR | — | ◇ UNVERIFIED |
| OPOregon Precision Manufacturing INC | Sherwood | OR | — | ◇ UNVERIFIED |
| OCOrganic Compounds & Fox Truckmounts INC | Gardena | CA | — | ◇ UNVERIFIED |
| OUOrica USA INC | Marion | IL | — | ◇ UNVERIFIED |
| OEOri Enterprises LLC | Wellington | UT | — | ◇ UNVERIFIED |
| OEOriginal Exhaust Manufacturers INC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| OSOrin Screws Products | Van Nuys | CA | — | ◇ UNVERIFIED |
| OAOrion Asset Management Co., LLC | Akron | OH | — | ◇ UNVERIFIED |
| OIOrion Industries, INC. | Broadview Heights | OH | — | ◇ UNVERIFIED |
| OPOrion Properties Group LLC | New Prague | MN | — | ◇ UNVERIFIED |
| OIOrluck Industries INC | Otsego | MN | — | ◇ UNVERIFIED |
| ODOrnalux Design Company, INC. | Oakland | CA | — | ◇ UNVERIFIED |
| OCOrrbilt Compressors, INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| OFOrth Family Partnership | Richardson | TX | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Bakersfield | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Ventura | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Chula Vista | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | West Covina | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Fresno | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Sacramento | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | El Cajon | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Santa Ana | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Gardena | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Oakland | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Thousand Oaks | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Stockton | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Temecula | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Riverside | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | Van Nuys | CA | — | ◇ UNVERIFIED |
| OUOrw USA INC Dba 4 Wheel Parts | San Jose | CA | — | ◇ UNVERIFIED |
| OCOsage Canoes LLC | Lebanon | MO | — | ◇ UNVERIFIED |
| OIOsage Industries, INC. | Linn | MO | — | ◇ UNVERIFIED |
| OMOscar Macias and Sandra L. Macias | Gilroy | CA | — | ◇ UNVERIFIED |
| OIOseda Industries Corporation | Corona | CA | — | ◇ UNVERIFIED |
| OOsha | Converse | TX | — | ◇ UNVERIFIED |
| OMO&S Machine Shop, LLC | Latrobe | PA | — | ◇ UNVERIFIED |
| OCOt Car/truck Repair | Roseville | CA | — | ◇ UNVERIFIED |
| ONOur Next Energy | Torrance | CA | — | ◇ UNVERIFIED |
| ODOutlaw Diesel Performance LLC | Greenfield | IN | — | ◇ UNVERIFIED |
| OTOutlook Tool, Inc. | Dayton | OH | — | ◇ UNVERIFIED |
| OTOutlook Tool, Inc. | Dayton | OH | — | ◇ UNVERIFIED |
| OMOverspeed Manufacturing | Signal Hill | CA | — | ◇ UNVERIFIED |
| OUOver Under Real Estate, LLC | Riverton | NJ | — | ◇ UNVERIFIED |
| OMOviso Mfg | Fremont | CA | — | ◇ UNVERIFIED |
| OMOwens Machine & Manufacturing | Abilene | TX | — | ◇ UNVERIFIED |
| OPOwens Precision | Carson City | NV | — | ◇ UNVERIFIED |
| OPOwens Precision, INC. | Mound House | NV | — | ◇ UNVERIFIED |
| OSOwens Specialty Company, INC. | Channelview | TX | — | ◇ UNVERIFIED |
| OBOx Bodies, INC. | High Point | NC | — | ◇ UNVERIFIED |
| OMOxbow Machine Prod INC | Livonia | MI | — | ◇ UNVERIFIED |
| OGOxford General Industries INC | Prospect | CT | — | ◇ UNVERIFIED |
| PPP2 Precision Mfg LLC | Pierceton | IN | — | ◇ UNVERIFIED |
| PMP3 Manufacturing LLC | Cleveland | OH | — | ◇ UNVERIFIED |
 Paasche Airbrush CO | Harwood Heights | IL | — | ◇ UNVERIFIED |
| PPPablo Precision | Oakland Park | FL | — | ◇ UNVERIFIED |
| PSPacesetter Safety, Inc. | Santa Clarita | CA | — | ◇ UNVERIFIED |
| PSPacfab Services LLC | Davenport | IA | — | ◇ UNVERIFIED |
