| OTOld Town Fiberglass Dba Fiberglass Fab. | Orange | CA | — | ◇ UNVERIFIED |
| OTOld Town Fiberglass INC Dba Fiberglass Fabricators | Orange | CA | — | ◇ UNVERIFIED |
| OWOld World Cabinet, INC | Linwood | KS | — | ◇ UNVERIFIED |
| OWOld World Cabinetry,llc | Las Vegas | NV | — | ◇ UNVERIFIED |
| OWOld World Iron | Gilroy | CA | — | ◇ UNVERIFIED |
| O3Olein 3 Green Valley Industrial Park | Yabucoa | PR | — | ◇ UNVERIFIED |
| OSOlins Sheet Metal, INC. | Albany | GA | — | ◇ UNVERIFIED |
| OROlive Roots, LLC | Groveport | OH | — | ◇ UNVERIFIED |
| OCOliver's Custom Cabinets, LLC | Chickamauga | GA | — | ◇ UNVERIFIED |
| OOOliver's Ornamental Iron, LLC | Flora | MS | — | ◇ UNVERIFIED |
| OIOlivet International, INC. | Springdale | AR | — | ◇ UNVERIFIED |
 Olsen Chain & Cable - Edina | Edina | MN | — | ◇ UNVERIFIED |
| Olsen Chain - Cable INC | Moorhead | MN | — | ◇ UNVERIFIED |
| OBOlson Barker Cabinets INC | Tualatin | OR | — | ◇ UNVERIFIED |
| OCOlson Cabinets & Woodworking, INC. | Victoria | MN | — | ◇ UNVERIFIED |
| OCOlson & Company Steel | Fresno | CA | — | ◇ UNVERIFIED |
| OIOlson Industries, INC. | Atkinson | NE | — | ◇ UNVERIFIED |
| OPOlson Precast Company | Henderson | NV | — | ◇ UNVERIFIED |
| OSOlson Steel | San Leandro | CA | — | ◇ UNVERIFIED |
| OWOlson Woodworking LLC | New Orleans | LA | — | ◇ UNVERIFIED |
| OCOlsson Construction, INC. | Perris | CA | — | ◇ UNVERIFIED |
| OCOlympia Chimney Supply, Incorporated | Scranton | PA | — | ◇ UNVERIFIED |
| OCOlympic Coatings | Santa Ana | CA | — | ◇ UNVERIFIED |
| OVOlympic Veterinary | Mercer Island | WA | — | ◇ UNVERIFIED |
| OTOlympus Technologies Incorporated | Eugene | OR | — | ◇ UNVERIFIED |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OCOm Chicago Heights Oil INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| OOmco | Talladega | AL | — | ◇ UNVERIFIED |
| OAOmega Autotech INC | Chicago | IL | — | ◇ UNVERIFIED |
| OCOmega Chemical CORP Omega Reco | Whittier | CA | — | ◇ UNVERIFIED |
| OCOmega Consolidated Corporation | Hilton | NY | — | ◇ UNVERIFIED |
| ODOmega Demolition | Elmwood Park | IL | — | ◇ UNVERIFIED |
| ODOmega Demolition CORP | Mundelein | IL | — | ◇ UNVERIFIED |
| ODOmega Demolition CORP | Northlake | IL | — | ◇ UNVERIFIED |
| OEOmega Emgineering INC Dba Newport Electronics INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| OIOmega Iii LLC | Chicago | IL | — | ◇ UNVERIFIED |
| OMOmega Machine & Tool, INC. | Mentor | OH | — | ◇ UNVERIFIED |
| OPOmega Plastics, LLC | Erie | PA | — | ◇ UNVERIFIED |
| OSOmega Steel Products, INC | Jemison | AL | — | ◇ UNVERIFIED |
| OTOmega Tech Inc | Diamond Bar | CA | — | ◇ UNVERIFIED |
| OTOmega Tool CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| OMO & M Fabricators, LLC | Pensacola | FL | — | ◇ UNVERIFIED |
| OIOmg INC | Agawam | MA | — | ◇ UNVERIFIED |
| OIOmg, INC. Dba Hickman Engineered Systems | Arden | NC | — | ◇ UNVERIFIED |
| OPOmico Plastics INC | Owensboro | KY | — | ◇ UNVERIFIED |
| OCOmiotek Coil Spring CO | Lombard | IL | — | ◇ UNVERIFIED |
| OSOmi Specialty Products LLC | Fullerton | CA | — | ◇ UNVERIFIED |
| OTOmk Tube Miller Rd 2 | Houston | TX | — | ◇ UNVERIFIED |
| OMOm Machine & Tool LLC | Portland | OR | — | ◇ UNVERIFIED |
| OBOmni Bag, Inc. | Gallaway | TN | — | ◇ UNVERIFIED |
| OBOmni Bioenergy LLC | Granite City | IL | — | ◇ UNVERIFIED |
| OIOmnical, INC. | San Fernando | CA | — | ◇ UNVERIFIED |
| OCOmni CORP Ii | Saint Augustine | FL | — | ◇ UNVERIFIED |
| OOmniduct | Everett | WA | — | ◇ UNVERIFIED |
| OAOmniduct Arlington | Arlington | WA | — | ◇ UNVERIFIED |
| OAOmniduct Az, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| OIOmni Industrial Services | Buffalo | WV | — | ◇ UNVERIFIED |
| OIOmni Industrial Solutions, INC | Longview | TX | — | ◇ UNVERIFIED |
| OOmnimax | Gridley | IL | — | ◇ UNVERIFIED |
| OIOmnimax International, INC. | Ivyland | PA | — | ◇ UNVERIFIED |
| OIOmnimax International, LLC Dba Millennium Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| OMOmni Measurement Systems | Winooski | VT | — | ◇ UNVERIFIED |
| OPOmni Precision | Houston | TX | — | ◇ UNVERIFIED |
| OPOmni Precision, INC. | Houston | TX | — | ◇ UNVERIFIED |
 Omni Services | Falconer | NY | — | ◇ UNVERIFIED |
| OTOmni Technical Services INC | Saint Johns | MI | — | ◇ UNVERIFIED |
| OSOmnitech Systems Inc. | Valparaiso | IN | — | ◇ UNVERIFIED |
| OEOmnitek Engineering CORP | Vista | CA | — | ◇ UNVERIFIED |
| OSOmnova Solutions INC. | Akron | OH | — | ◇ UNVERIFIED |
| OROmron Robotics and Safety Technologies | Pleasanton | CA | — | ◇ UNVERIFIED |
| OSOmya Specialty Materials | Long Beach | CA | — | ◇ UNVERIFIED |
| OAOnarga Academy - Nexus INC | Onarga | IL | — | ◇ UNVERIFIED |
| OFOnarga Fire Protection District | Onarga | IL | — | ◇ UNVERIFIED |
| OPOn-board Pmo, Corporation | Valley View | OH | — | ◇ UNVERIFIED |
| OCOn Call Heating & Air, LLC | Trussville | AL | — | ◇ UNVERIFIED |
| OFOnco Filtration | Woburn | MA | — | ◇ UNVERIFIED |
| OFOnco Filtration INC | Lowell | MA | — | ◇ UNVERIFIED |
| ODOn Demand Edm INC | Blaine | MN | — | ◇ UNVERIFIED |
| ODOn Demand Mail Services LLC | Pontiac | MI | — | ◇ UNVERIFIED |
| ONOndeo Nalco CO | Ellwood City | PA | — | ◇ UNVERIFIED |
| OMO'neal Manufacturing Services | Cedar Falls | IA | — | ◇ UNVERIFIED |
| OMO'neal Manufacturing Services | Indianapolis | IN | — | ◇ UNVERIFIED |
| ODOne Day Doors and Closets | Rocklin | CA | — | ◇ UNVERIFIED |
| OEOne Ez Post LLC | Kingsport | TN | — | ◇ UNVERIFIED |
| OTOneida Tool Corporation | Redford | MI | — | ◇ UNVERIFIED |
| OIOne Industry Holdings, LLC | Joliet | IL | — | ◇ UNVERIFIED |
| OROne Rig Design LLC | Poland | ME | — | ◇ UNVERIFIED |
| OHOnesource Hard Surfaces, LLC | Dalton | GA | — | ◇ UNVERIFIED |
| OSOne Source Sample,llc | Dalton | GA | — | ◇ UNVERIFIED |
| OSOne Stop | Chicago | IL | — | ◇ UNVERIFIED |
| OSOneTech Solutions LLC | Portland | OR | — | ◇ UNVERIFIED |
| OTOne Thousand Sylvan LLC | Bayport | NY | — | ◇ UNVERIFIED |
| OMOneto Metal Products CORP | Sacramento | CA | — | ◇ UNVERIFIED |
| OTOne Ton Welding, Inc. | Panama | IA | — | ◇ UNVERIFIED |
| OAOnex Automation | Duarte | CA | — | ◇ UNVERIFIED |
| OSOney Sheetmetal INC | Fort Myers | FL | — | ◇ UNVERIFIED |
| OFOnGuard Fence Systems, Ltd. | Moorestown | NJ | — | ◇ UNVERIFIED |
| OPOnline Packaging INC | Plover | WI | — | ◇ UNVERIFIED |
| OGOnly Grace INC | Wedowee | AL | — | ◇ UNVERIFIED |
| OOOn Our Way, INC. | Sterling | VA | — | ◇ UNVERIFIED |
