| Sub-Contractor | See Also | Options |
|---|---|---|
| Oles Morrison Firm | view | |
| OLH Inc. | Juno Management Professionals, Inc. | view |
| Oli Systems, Inc. | view | |
| Olin Corp. | view | |
| Olin Trucking & Supply | view | |
| Oliver Corp | view | |
| Oliver M. Johnson | view | |
| Oliver Springs High School | view | |
| Olshan Demolishing Co. | view | |
| Olson Construction | view | |
| Olsson Associates | view | |
| Olsten Staffing Services | view | |
| Olympic Assoc. | view | |
| Olympic Commissary Co. | view | |
| Olympic Engineering | view | |
| Olympic Pipe Fabricators Company | view | |
| Olympic Trucking | view | |
| Olympic Welding Co. | view | |
| Omaha Public Power District | view | |
| Oman-Creighton Co. | view | |
| Omega | view | |
| Omega Balance Service | view | |
| OMEGA Construction & Engineering, Inc. | view | |
| Omega Consultants, Inc. | view | |
| Omega Fab | view | |
| Omega Mechanical Inc. | view | |
| Omega Riggers Erec | view | |
| Omega Technical Services | view | |
| Omicron Safety and Risk Technologies, Inc. | view | |
| OMM Fireproofing Co. | view | |
| OMNE Electric | view | |
| Omni Sec International | view | |
| On Computer Services, LLC | view | |
| On Line Design | view | |
| On Line Power | view | |
| On Location Multimedia | view | |
| On Site Engineering & Management | view | |
| On-site Intrument | view | |
| ONan Construction | view | |
| Onan Corp. | view | |
| ONC Freight System | view | |
| One Earth One People | view | |
| One Net Communications | view | |
| One Way Farm | view | |
| Onent | view | |
| Online Prof Electric Network | view | |
| Onsite Companies, Inc. | view | |
| Onsite Environmental | view | |
| Onsite Environmental Stfg. | view | |
| Ontario Specialty Contracting | view | |
| Onwego Drilling Co. Inc. | view | |
| ONYX Environmental Services | view | |
| Onyx Industrial Services | view | |
| Onyx Special Services, Inc. | view | |
| Onyx/Superior | view | |
| OP Plus | view | |
| OP Resources Plus | view | |
| OPCON, Inc. | view | |
| Open House | view | |
| Opening Consultants Inc. | view | |
| Operation Management International | view | |
| Operational Technologies | view | |
| Operle Craine | view | |
| Ophthalmic Instrument | view | |
| Oppenheimer and Co, Inc. | view | |
| Optical Coating Laboratory Inc. | view | |
| Optical Gaging Products, Inc. | view | |
| Optical Instrument Service | view | |
| Optima Insulation | view | |
| Optimal Care, Inc. | view | |
| Option One | view | |
| ORACLE | view | |
| Oracle Corp. | Sun Microsystems, Inc. | view |
| Oracle USA Inc. | view | |
| Orange Vest | view | |
| Orano | view | |
| Orano Federal Services | view | |
| Orarc | view | |
| ORAS | view | |
| Orberle and Jordre Co. | view | |
| Orbit Movers | Orbit Industrial Group; Orbit Sheet Metal & Millwright Services | view |
| Orbit S and D Oscerfield | view | |
| Orbit Sheet Metal | Orbit Movers | view |
| Orco Erection | view | |
| Oregon Bureau of Mines | view | |
| Oregon College of Education | view | |
| Oregon Department of Energy | view | |
| Oregon Handling | view | |
| Oregon Institute of Technology | view | |
| Oregon Marine Dredging Company | view | |
| Oregon Metallurgical Corp | view | |
| Oregon Portland Cement | view | |
| Oregon State Board of Health | view | |
| Oregon State University | view | |
| Oregon Transfer Company | view | |
| Oregon Washington Telephone Company | view | |
| Oreher Business Products | view | |
| Oreo & Botta | view | |
| ORI, Inc. | view | |
| Oriard Powder Company | view |
BTComp is a general information resource tool. It is not intended to nor does it contain all information that relates to DOE subcontractors. We reserve the right to add or delete entries at any time. We make no warranty, expressed or implied, with respect to either the completeness of the database or the accuracy of the entries on the website.