| Horizon Robotics Inc. CA | Professional & Technical Services | 2 | $206,628 | — |
| Horizon Roofing, Inc. MN | Construction | 0 | — | F |
| HORIZON SCIENCE ACADEMY CLEVELAND MIDDLE SCHOOL OH | Educational Services | 1 | $52,190 | — |
| HORIZON SCIENCE ACADEMY DAYTON HIGH SCHOOL, INC. OH | Educational Services | 2 | $52,325 | — |
| HORIZON SCIENCE ACADEMY DENISON MIDDLE SCHOOL, INC. OH | Educational Services | 1 | $57,050 | — |
| HORIZON SCIENCE ACADEMY ELEMENTARY SCHOOL, INC. OH | Educational Services | 1 | $54,050 | — |
| HORIZON SCIENCE ACADEMY OF LORAIN, INC. OH | Educational Services | 1 | $53,550 | — |
| HORIZON SCIENCE ACADEMY, INC. OH | Educational Services | 1 | $55,520 | — |
| HORIZON SCIENCE ACADEMY-CINCINNATI OH | Educational Services | 1 | $57,873 | — |
| HORIZON SCIENCE ACADEMY-SPRINGFIELD, INC OH | Educational Services | 1 | $54,460 | — |
| HORIZON SCRIPTED TELEVISION, INC. CA | Information & Media | 0 | — | F |
| Horizon Services (MD) LLC VA | Construction | 0 | — | F |
| Horizon Services (PA) LLC PA | Construction | 0 | — | F |
| Horizon Services Corporation CT | Administrative & Waste Services | 0 | — | F |
| Horizon Services Group Holdings LLC FL | Construction | 0 | — | F |
| Horizon Services Group Holdings LLC PA | Construction | 0 | — | F |
| Horizon Services Group Holdings LLC VA | Construction | 0 | — | F |
| Horizon Services LLC DE | Construction | 0 | — | F |
| Horizon Services LLC GA | Construction | 0 | — | F |
| Horizon Services LLC MD | Construction | 0 | — | F |
| Horizon Services LLC NJ | Construction | 0 | — | F |
| Horizon Sevices LLC NJ | Construction | 0 | — | F |
| Horizon Sheet Metal, Inc. CO | Construction | 0 | — | F |
| Horizon Soft Solutions, Inc TX | Professional & Technical Services | 3 | $158,570,166 | — |
| HORIZON SOFTECH INC MI | Professional & Technical Services | 8 | $102,687 | — |
| Horizon Specialty Hospital Las Vegas, LLC NV | Healthcare & Social Assistance | 0 | — | F |
| Horizon Specialty Hospital of Henderson NV | Healthcare & Social Assistance | 0 | — | F |
| Horizon Stevedoring, Inc. PA | Transportation & Warehousing | 0 | — | A |
| HORIZON SURGICAL SYSTEMS, INC. CA | Professional & Technical Services | 2 | $150,000 | — |
| Horizon Systems Machining, Inc WI | Manufacturing | 0 | — | A |
| HORIZON SYSTEMS, INC. VA | Professional & Technical Services | 3 | $149,665 | — |
| Horizon Termite and Pest Control NJ | Administrative & Waste Services | 0 | — | F |
| Horizon Terra, Incorporated dba idX Louisville IN | — | 0 | — | — |
| Horizon Therapeutics USA, Inc. IL | Manufacturing | 10 | $159,249 | — |
| Horizon Therapeutics USA, Inc. MD | — | 0 | — | — |
| Horizon Tile & Carpet Southeast Inc FL | Construction | 0 | — | A |
| Horizon Tire Inc CA | Wholesale Trade | 1 | $80,000 | — |
| Horizon Transport LLC WA | Transportation & Warehousing | 0 | — | A |
| Horizon Underground, LLC TN | Construction | 0 | — | F |
| Horizon Utah Federal Credit Union UT | Finance & Insurance | 0 | — | F |
| Horizon Veterinary Group CA | Professional & Technical Services | 0 | — | F |
| Horizon View Homes CO | Construction | 0 | — | A |
| Horizon Village, Inc. NY | Healthcare & Social Assistance | 0 | — | A |
| Horizon West Florida LLC FL | Construction | 0 | — | F |
| Horizon Wood Products PA | Manufacturing | 0 | — | F |
| HORIZONPLUS TECHNOLOGIES, INC. NJ | Professional & Technical Services | 1 | $97,032 | — |
| Horizons Incorporated OH | Manufacturing | 0 | — | A |
| Horizons Mental Health Center KS | Healthcare & Social Assistance | 0 | — | F |
| Horizons of Tuscarawas and Carroll Counties, Inc. OH | Healthcare & Social Assistance | 0 | — | F |
| Horizons Programs, Inc CT | Healthcare & Social Assistance | 0 | — | F |
