| Optimist Youth Homes & Family Services CA | Healthcare & Social Assistance | 0 | - | F |
| Optimize Mind Performance Inc. MA | Arts & Entertainment | 1 | $128,544 | - |
| Optimized Gas Treating, Inc. TX | - | 1 | $125,819 | - |
| Optimized Investment Holdings, Inc. GA | - | 1 | $151,000 | - |
| Optimized Process Designs, LLC. TX | Manufacturing | 0 | - | B |
| Optimizely North America Inc. NH | Information & Media | 4 | $225,000 | - |
| Optimoz, Inc. MD | - | 1 | $175,427 | - |
| Optimum Dealer Group, LLC FL | Retail Trade | 0 | - | C |
| Optimum Delivery Service LLC MN | Transportation & Warehousing | 0 | - | F |
| Optimum Engineering Solutions Inc IL | Professional & Technical Services | 3 | $65,645 | - |
| Optimum Foods, LLC NV | - | 1 | $67,808 | - |
| Optimum Media, LLC NY | Information & Media | 5 | $140,000 | - |
| Optimum Plus Home Care LLC MI | - | 2 | $94,316 | - |
| Optimum Systems INC. VA | Professional & Technical Services | 2 | $126,090 | - |
| Optimum Technology, Inc. OH | - | 1 | $101,899 | - |
| Optimum Window Mfg Corp NY | Manufacturing | 0 | - | F |
| Optimum, Inc. CA | Construction | 0 | - | F |
| Optimums LLC WA | Wholesale Trade | 1 | $70,000 | - |
| Optimus Health Analytics, LLC NY | Information & Media | 3 | $118,433 | - |
| Optimus Services Corp. NY | Healthcare & Social Assistance | 4 | $88,941 | - |
| Optimus SteeL LLC TX | Manufacturing | 2 | $93,983 | F |
| Optimus Technologies, Inc. PA | Manufacturing | 2 | $128,000 | - |
| Optimus Unit LLC TX | Professional & Technical Services | 3 | $77,418 | - |
| Optimuss INC VA | Professional & Technical Services | 4 | $157,400 | - |
| Optio Solutions LLC, dba Optio Solutions CA | - | 0 | - | - |
| Option Care Enterprises, Inc. IL | - | 1 | $111,509 | - |
| Option One Corporation CA | Construction | 0 | - | F |
| Options for All, Inc. CA | Other Services | 1 | $82,000 | - |
| Options for Learning CA | - | 0 | - | - |
| Options For Youth Public San Gabriel Charter CA | - | 0 | - | - |
| Options for Youth-Victor Valley, Inc. CA | - | 0 | - | - |
| Options in Community Living WI | Healthcare & Social Assistance | 0 | - | F |
| Options Schools, Inc. IN | Educational Services | 1 | $76,020 | - |
| Optis Consulting Inc NY | Professional & Technical Services | 1 | $131,706 | - |
| Optiv Security Inc. KS | Professional & Technical Services | 5 | $127,254 | - |
| Optivent Group INC IL | Professional & Technical Services | 17 | $104,926 | - |
| Optiver Execution Operations LLC IL | Finance & Insurance | 1 | $175,000 | - |
| Optiver Services US LLC IL | Finance & Insurance | 33 | $200,000 | - |
| Optiviq Inc. WA | - | 2 | $146,500 | - |
| OptiX Technologies LLC AL | Manufacturing | 1 | $70,000 | - |
| OptML, Inc GA | Professional & Technical Services | 1 | $134,347 | - |
| OPTO International, Inc. IL | Manufacturing | 0 | - | F |
| Opto Biosystems US Inc. CA | Manufacturing | 1 | $156,000 | - |
| Opto Investments, Inc. NY | Information & Media | 1 | $190,000 | - |
| Opto-Alignment Technology, Inc. NC | Manufacturing | 1 | $133,536 | - |
| Optometric Providers of NH, PLLC NH | Healthcare & Social Assistance | 2 | $140,000 | - |
| Optomi, LLC GA | Professional & Technical Services | 3 | $152,533 | - |
| Optoro, Inc. DC | Information & Media | 1 | $132,840 | A |
| Optro, Inc. DE | - | 5 | $175,000 | - |
| Optum CA | - | 0 | - | - |