| Vendor | Awards | Awarded value | Top agency |
|---|---|---|---|
| O L Development Inc | 3 | $36K | City of Los Angeles Controller |
| O R Colan Associates LLC | 6 | $15M | MTA Procurements |
| O R Elder Inc | 3 | $194K | Department of Veterans Affairs |
| O R X Railway Corp. | 3 | $254K | NY State Authorities |
| O Reilly Automotive Store Inc | 344 | $76K | City of Mesquite |
| O2X Human Performance, LLC | 3 | $3.4M | U.S. Immigration and Customs Enforcement |
| Oak Ridge Associated Universities, Incorporated | 3 | $17M | Centers for Medicare and Medicaid Services |
| Oakgrove Construction Inc | 5 | $78M | NY State Authorities |
| Oakland Consulting Group, Inc | 3 | $1.2M | New York City |
| Oakridge Dynamics LLC | 7 | $5K | Defense Logistics Agency |
| Oas Inc | 5 | $15M | MTA Procurements |
| Oasys International LLC | 3 | $18M | Federal Acquisition Service |
| Oberle Enterprises LLC | 3 | $97K | Department of the Army |
| Obi Seafoods, LLC | 15 | $199M | Agricultural Marketing Service |
| Obsidian Dispensary | 3 | $239K | San Francisco |
| Oc Forestry, Incorporated | 9 | $419K | Bureau of Land Management |
| Occupational Health Centers of the SW PA, PC | 125 | $37K | City of Mesquite |
| Occupational Training Center of Burlington County | 7 | $2.2M | Department of the Air Force |
| Oce Contracting | 4 | $9.3M | MTA Procurements |
| Ocean Air Defense, LLC | 21 | $7.5M | Department of the Army |
| Ocean Bay Community Development Corporation | 4 | $4.9M | New York City |
| Ocean Beauty Seafoods LLC | 3 | $29M | Agricultural Marketing Service |
| Ocean Construction Services Inc | 3 | $32M | U.S. Secret Service |
| Ocean Duchess, Inc. | 3 | $5.4M | Maritime Administration |
| Ocean Fair International Ship Chandleing LLC | 4 | $476K | Defense Logistics Agency |
| Ocean Gold Seafoods, Inc | 5 | $24M | Agricultural Marketing Service |
| Ocean Instruments NZ Limited | 4 | $204K | National Oceanic and Atmospheric Administration |
| Ocean Select Seafood, L.l.c. | 16 | $78M | Agricultural Marketing Service |
| Oceaneering International Inc | 3 | $191K | Department of the Navy |
| Oceanetics Inc | 16 | $16M | Department of the Navy |
| Oceanit Laboratories Inc | 3 | $2.3M | Defense Advanced Research Projects Agency |
| Ocenco Inc | 4 | $7.3M | Department of the Navy |
| OCI Associates, Inc. | 4 | $2.9M | San Francisco |
| Oclc, Inc | 22 | $1.2M | Department of the Navy |
| O'Connell Electric Co | 7 | $62M | NY State Authorities |
| Ocs Construction Services Inc | 4 | $10M | Federal Prison System / Bureau of Prisons |
| Ocs-Ncs JV II, LLC | 4 | $7.6M | National Park Service |
| Oculus Inc | 4 | $115K | Defense Health Agency |
| Odin Environmental Solutions, LLC | 4 | $50M | Department of the Army |
| ODP Business Solutions, LLC | 731 | $9.0M | City of Los Angeles Controller |
| Odyssey House Inc | 3 | $16M | New York City |
| Odyssey Systems Consulting Group, Ltd. | 5 | $192M | Department of the Air Force |
| Oem Laundry Parts, LLC. | 7 | $47K | Defense Logistics Agency |
| Oem Parts Network Inc | 3 | $43K | NY State Authorities |
| Oetc | 3 | $3 | State of Washington |
| Offen Petroleum LLC | 82 | $143K | City of Mesquite |
| Office Automation Inc | 4 | $2K | City-Parish of Baton Rouge |
| Office Depot Business Solutions LLC | 7 | $3K | City-Parish of Baton Rouge |
| Office Design & Furnishings LLC | 6 | $297K | Department of the Army |
| Office Design Group, Inc. | 3 | $170K | Department of the Air Force |
| Office Equipment Co of Staten Island Inc | 3 | $0 | MTA Procurements |
| The Office Group Inc | 3 | $8K | Department of the Navy |
| Office Is Ltd | 3 | $404K | Department of the Air Force |
| Office Leader Corp | 7 | $931K | Department of the Army |
| Office Master, Inc. | 7 | $4K | Oregon State Treasury |
| Office of Charles F. Bloszies, Ltd. | 6 | $1.4M | San Francisco |
| Office Solutions Inc | 12 | $99K | City of Los Angeles Controller |
| Offshore Service Vessels, L.l.c. | 3 | $138M | Department of the Navy |
| Ofs Brands Holdings Inc. | 3 | $267K | Department of the Navy |
| Ogburns Truck Parts | 103 | $55K | City of Mesquite |
| Ogis Communication Group Inc | 17 | $1.7M | Defense Health Agency |
| Ohd LLLP | 8 | $149K | Department of the Navy |
| Ohel Children's Home and Family Services Inc. | 12 | $69M | New York City |
| Ohio Gratings Inc | 11 | $1.3M | MTA Procurements |
| Ohio Machinery Co | 6 | $17K | Defense Logistics Agency |
| Ohio Semitronics Inc | 9 | $108K | Defense Logistics Agency |
| Ohio State University, the | 6 | $35M | Drug Enforcement Administration |
| Ohmco, LLC. | 3 | $24K | Defense Logistics Agency |
| Ohsix Logistics, LLC | 6 | $92K | Defense Logistics Agency |
| Oil States Industries, Inc. | 7 | $1.9M | Department of the Navy |
| Oiles America Corp | 25 | $962K | NY State Authorities |
| Ok Petroleum Distribution Corp | 104 | $12M | MTA Procurements |
| OK2 Construction, LLC | 12 | $3.7M | Department of the Air Force |
| Okinawa Marine Service Co.,ltd. | 9 | $442K | Department of the Navy |
| Okinawa Medix K.k. | 3 | $134K | Defense Health Agency |
| Okinawa Sobi Kogyo, K.k. | 4 | $2.3M | Department of the Navy |
| Oklahoma State University | 4 | $298K | Federal Aviation Administration |
| Okonite Company Inc. | 3 | $28M | NY State Authorities |
| Okoye Ahmose | 4 | $35K | City-Parish of Baton Rouge |
| Olalekan Jeyifous | 3 | $340K | City of Chicago |
| Olb Associates LLC | 19 | $190K | Defense Logistics Agency |
| Old Dominion Strategies, LLC | 3 | $1.1M | Office of Procurement Operations |
| Old Republic Title Company | 53 | $13M | San Francisco |
| Old Town Merchants & Residents | 4 | $202K | City of Chicago |
| Old Town School of Folk Music, Inc. | 3 | $403K | City of Chicago |
| Oldcastle Precast Encl Solutions | 28 | $2.2M | NY State Authorities |
| Olea Gabon | 3 | $1.1M | Department of State |
| Olga H Barrios | 120 | $131M | Agricultural Marketing Service |
| Olgoonik Enterprises, LLC | 3 | $2.4M | Department of the Army |
| Olgoonik Federal, LLC | 9 | $43M | Defense Logistics Agency |
| Olgoonik General, LLC | 10 | $14M | Department of the Army |
| Olgoonik Logistics, LLC | 8 | $27M | Defense Logistics Agency |
| Olgoonik Specialty Contractors LLC | 5 | $5.6M | Department of the Army |
| Olgoonik Worldwide Services LLC | 3 | $27M | Defense Logistics Agency |
| Olin Winchester LLC | 12 | $614M | Department of the Army |
| Olive Branch Mission 01 | 6 | $3.3M | City of Chicago |
| Olive Branch Mission 01|CLEANED-UP | 8 | $18M | City of Chicago |
| Olive River Contract Management LLC | 3 | $43K | Department of the Army |
| Oliver Wyman Actuarial Consulting Inc | 3 | $4.7M | MTA Procurements |
| Olmsted Instrument Co | 11 | $1.2M | Department of the Army |
Vendor totals add up the award records RFPFinder holds: federal contract awards from USAspending.gov for the agencies and codes behind open notices, and state and local awards from open-data contract registers and purchase-order files. They are not a vendor's complete government revenue, and a register that lists a contract ceiling or repeats a contract can overstate spend. Names are grouped across spellings ("Corp" and "Corporation"); each award links to its source record.