| Oklahoma Dept. of Securities | US | — | 1 |
| Oklahoma Health Care Authority Employees Group Insurance Division | US | Healthcare | 1 |
| Oklahoma State University Foundation | US | — | 1 |
| Oklahoma Student Loan Authority | US | — | 1 |
| Oklahoma Tax Commission | US | — | 2 |
| Okta Inc | US | Technology | 2 |
| Old City Coffee, Inc. | US | — | 1 |
| Old Colony YMCA | US | — | 1 |
| Old Dutch Foods, Inc. | US | — | 1 |
| Old Edwards Hospitality Group | US | — | 1 |
| Old National Events Plaza | US | — | 1 |
| Old Point National Bank | US | — | 1 |
| Old Trail School | US | — | 1 |
| Oldfields School | US | — | 1 |
| OLE Health (DBA CommuniCare + OLE) | US | — | 1 |
| Olema Pharmaceuticals, Inc. | US | Pharma | 1 |
| Olenick & Associates, Inc. | US | — | 1 |
| Oliff, PLC | US | — | 1 |
| Olinsky & Associates PLLC | US | — | 1 |
| Oliver Companies | US | — | 1 |
| Oliver Street Dermatology Management LLC | US | Healthcare | 1 |
| Olson & Co Steel | US | — | 1 |
| Olson Remcho LLP | US | — | 1 |
| Olsson, Inc. | US | — | 1 |
| Olympia School District | US | — | 1 |
| Olympic College Foundation | US | — | 1 |
| Olympus Corporation of the | US | — | 1 |
| Olympus Corporation of the Americas | US | — | 1 |
| OLYMPUS FINANCIAL | US | — | 1 |
| Olympus Group | US | — | 1 |
| Omaha Hotels, Inc. | US | — | 1 |
| Omaha National Underwriters | US | — | 1 |
| Omaha Surgical Center | US | Healthcare | 1 |
| Omnex Group, Inc | US | — | 1 |
| Omni Agent Solutions Inc. | US | — | 1 |
| Omni Family Health | US | — | 2 |
| Omni Healthcare Financial Holdings | US | — | 2 |
| Omni Hotels & Resorts | US | — | 1 |
| Omnicell, Inc. | US | Technology | 1 |
| OmniTRAX, Inc. | US | — | 1 |
| OmniVision Technologies, Inc. | US | — | 2 |
| On Deck Capital, Inc. | US | — | 1 |
| On Demand Staffing, Inc | US | — | 1 |
| On Lok Senior Health Services | US | — | 1 |
| On Q Fiancial, Inc. | US | — | 1 |
| On Q Financial | US | — | 2 |
| On Q Financial, Inc. | US | — | 3 |
| On The Border | US | — | 1 |
| ON24, Inc. | US | — | 2 |
| Oncologie Inc. | US | — | 1 |
| OnCore Manufacturing Services | US | — | 1 |
| OnCourse Learning Corporation | US | — | 1 |
| OnCourse Learning Corporation (“OCL”), a predecessor-in-interest to Relias LLC (“Relias”) | US | — | 1 |
| Ondracek & Company | US | — | 1 |
| One Brooklyn Health System | US | — | 1 |
| One Community Health | US | — | 2 |
| ONE Gas, Inc. | US | Energy | 1 |
| One Hope United | US | — | 1 |
| One Medical Group, Inc. | US | Healthcare | 1 |
| One Point HR Solutions, Inc. | US | — | 1 |
| One Stop | US | — | 1 |
| One Two Cosmetics, LLC dba | US | — | 1 |
| One Workplace Ferrari, LLC dba | US | — | 1 |
| One Workplace Ferrari, LLC dba One Workplace | US | — | 1 |
| OneAmerica Financial Partners, | US | — | 1 |
| OneBlood, Inc. | US | — | 1 |
| OneDigital Investment Advisors LLC | US | — | 1 |
| Oneida Health Center | US | — | 1 |
| OneLocal Bank | US | — | 1 |
| OneMain Financial Group, LLC | US | — | 3 |
| OnePoint Patient Care | US | — | 1 |
| OneSource Virtual, Inc. | US | — | 1 |
| OneStopParking | US | — | 1 |
| OneTouchPoint, Inc. | US | — | 1 |
| OneWest Bank, FSB | US | — | 1 |
| oneZero Financial Systems, LLC | US | — | 1 |
| Ongoing Operations | US | — | 1 |
| Onity Group Inc | US | Finance | 1 |
| Onix Group, LLC | US | — | 1 |
| OnPoint Legal Consulting LLC | US | — | 1 |
| OnScale, Inc. | US | — | 1 |
| Onset Computer Corporation | US | — | 1 |
| Onset Financial, Inc. | US | — | 1 |
| Onsite Mammography | US | — | 1 |
| Ontario Inc. | US | — | 1 |
| Ontario Systems, LLC | US | — | 1 |
| Onteora Club | US | — | 1 |
| Onward Consulting Corp. | US | — | 1 |
| Onyx Equities, LLC | US | — | 1 |
| Oostra Rouw & Associates, Inc. (ORA, Inc.) | US | — | 1 |
| Open Arms Care Corporation | US | Healthcare | 1 |
| Open Door Capital, LLC | US | — | 1 |
| Open Door Community Health Centers | US | — | 1 |
| Open Door Family Medical | US | — | 1 |
| Open Door Health Center of Illinois | US | Healthcare | 1 |
| Open Practice Solutions, LTD | US | — | 2 |
| OpenClose, a DBA of Beanstalk | US | — | 1 |
| Opening Ceremony Online LLC | US | — | 1 |
| OpenLoop Health, Inc. | US | Healthcare | 2 |
| Operating Engineers Local Union No. 3 | US | — | 1 |
| Operation Homefront | US | — | 1 |
| Operation PAR, Inc. | US | Healthcare | 1 |
| Opes Advisors | US | — | 1 |
| OppenheimerFunds | US | — | 1 |
| Opportune LLP | US | — | 4 |
| Opportunity Council | US | — | 1 |
| Opportunity Works, Inc. | US | — | 1 |
| Optalis Management Solutions | US | Healthcare | 1 |
| Optiline Enterprises, LLC | US | — | 1 |
| Optima Family Services, Inc. | US | — | 1 |
| Optima Tax Relief, LLC | US | — | 3 |
| Optimal Home Health Care INC | US | — | 1 |
| Optimum Design Associates | US | — | 1 |
| Option Care Health | US | — | 1 |
| Option Care Health, Inc. | US | Healthcare | 3 |
| Optionis Group Limited | GB | — | 1 |
| OptionMetrics, LLC | US | — | 1 |
| Optisure Risk Partners, LLC. | US | — | 1 |
| OPTP, LLC | US | — | 1 |
| OptumRx | US | — | 2 |
| Opus Card Systems, Inc. | US | — | 1 |
| Ora, LLC | US | — | 1 |
| Oracle Corporation | US | Technology | 1 |
| Oradell Animal Hospital, Inc | US | — | 2 |
| Oral Roberts University | US | — | 1 |
| Orange Bank & Trust Company | US | — | 1 |
| Orange Business Services U.S., | US | — | 1 |
| Orange Business Services U.S., Inc. | US | — | 1 |
| Orange County Employees Association | US | — | 1 |
| Orange County Global Medical Center | US | — | 1 |
| Orange County Radiation Oncology Medical Group | US | — | 1 |
| Orange County’s Credit Union ("OCCU") | US | — | 1 |
| ORASURE TECHNOLOGIES INC | US | Healthcare | 2 |
| OrbiMed Advisors LLC | US | — | 1 |
| Orbit Irrigation Products, LLC | US | — | 1 |
| Orbitz | US | — | 1 |
| Orbus Visual Communications, LLC | US | — | 1 |
| Orchard LLC | US | — | 1 |
| Orchard Medical Consulting | US | — | 1 |
| Orchard School Foundation | US | — | 1 |
| Orchestrate Healthcare | US | — | 1 |
| Orchid Island Golf and Beach Club | US | — | 1 |
| Orcutt Union School District | US | — | 1 |
| Order Express, Inc. | US | — | 1 |
| Orefice & Caliri CPAs | US | — | 1 |
| Oregano's Pizza Bistro | US | — | 1 |
| Oregon Academy of General Dentistry | US | — | 1 |
| Oregon City School District | US | — | 1 |
| Oregon Food Bank | US | — | 1 |
| Oregon Institute of | US | — | 1 |
| Oregon Judicial Department | US | — | 1 |
| Oregon Public Broadcasting | US | — | 1 |
| Oregon Reproductive Medicine, LLC | US | — | 1 |
| Oregon State University | US | — | 1 |
| Oregon Zoo | US | — | 1 |
| Organized Living | US | — | 1 |
| Orgill c/o Data Facts, Inc. | US | — | 1 |
| Orgill, Inc. | US | — | 1 |
| Oriental Bank and its affiliated | US | — | 1 |
| Original Footwear Co. | US | — | 1 |
| Orion Systems Integrators, LLC | US | — | 1 |
| Orlando Family Physician, LLC | US | — | 1 |
| orlantino dyoco, M.D. | US | — | 1 |
| Orleans Southwest Supervisory Union | US | — | 1 |
| Orrick, Herrington & Sutcliffe LLP | US | — | 3 |
| Orrick Herrington & Sutcliffe LLP (CHI Vision Plan) | US | — | 1 |
| Orrstown Bank | US | — | 2 |
| Orsid Realty Corporation | US | — | 1 |
| Orsini Pharmaceutical Services | US | — | 1 |
| Ortec, Inc. | US | — | 1 |
| Ortho Development Corporation | US | — | 1 |
| OrthoAccel Technologies, Inc. | US | — | 1 |
| OrthoAlaska LLC | US | — | 2 |
| OrthoAtlanta | US | — | 1 |
| OrthoConnecticut PLLC | US | — | 1 |
| OrthoMinds, LLC | US | — | 2 |
| Orthopaedic Specialists of Connecticut | US | Healthcare | 1 |
| Orthopaedic Specialists of Massachusetts, PC | US | Healthcare | 2 |
| Orthopaedics & Sports Medicine Owensboro, P.S.C. dba Advanced Center for Orthopedics & Sports Medicine | US | — | 1 |
| Orthopedic Associates of | US | — | 1 |
| Orthopedic Associates of Hawaii | US | — | 2 |
| Orthopedics Rhode Island, Inc. | US | — | 1 |
| Orthopedics & Sports Medicine Owensboro, P.S.C. d/b/a Advanced Center for Orthopedics & Sports Medicine | US | — | 1 |
| OrthopedicsNY, LLP | US | — | 1 |
| OS, Inc. on behalf of: Sauk Prairie Healthcare, Fort HealthCare, Inc., and Columbus Community Hospital | US | — | 1 |
| Osaic Wealth Inc. | US | — | 2 |
| Osborn Cancer Care | US | — | 2 |
| Osceola Mental Health Inc. dba Park Place Behavioral Healthcare | US | Healthcare | 1 |
| OSDA Contract Services | US | — | 1 |
| OSF HealthCare System | US | — | 1 |
| OSI Systems, Inc. | US | Technology | 1 |
| Osiac (formerly Advisor Group) | US | — | 1 |
| OSIsoft, LLC | US | — | 1 |
| Osmose Utilities Services, Inc. | US | — | 2 |
| OsteoRemedies, LLC | US | — | 2 |
| Oswego County Opportunities, | US | — | 1 |
| OTA Management LLC | US | — | 1 |
| Othon, Inc. | US | — | 2 |
| Otoe-Missouria Development | US | — | 1 |
| OTPR Management, LLC | US | — | 1 |