| Uniserve Facilities Services Corp. CA | Administrative & Waste Services | 0 | — | C |
| UNISERVE Project Management Services CA | Administrative & Waste Services | 0 | — | A |
| Uniship Courier Services, LLC ME | Transportation & Warehousing | 0 | — | B |
| UniSite Design LLC MD | Manufacturing | 0 | — | F |
| Unisoft Solutions LLC NJ | Professional & Technical Services | 11 | $108,077 | — |
| Unisoft Technology Inc. MD | Professional & Technical Services | 4 | $94,215 | — |
| Unison (formerly known as: Interfaith Older Adult Programs Inc.) WI | — | 0 | — | — |
| Unison Behavioral Health Group, Inc. OH | Healthcare & Social Assistance | 0 | — | A |
| Unison Electric CA | Construction | 0 | — | F |
| Unison Engine Components Asheville NC | Manufacturing | 0 | — | C |
| Unison Engine Components Terre Haute IN | Manufacturing | 0 | — | C |
| Unison Industries FL | Manufacturing | 0 | — | B |
| Unison Industries LLC OH | Manufacturing | 0 | — | C |
| Unisource Mfg INC OR | Manufacturing | 0 | — | F |
| UNISPACE OF BOSTON LLC MA | Professional & Technical Services | 2 | $142,500 | — |
| Unisteel LLC MI | Wholesale Trade | 0 | — | D |
| Unistorage Inc. CA | Transportation & Warehousing | 2 | $81,723 | — |
| Unistress Corp. MA | Manufacturing | 1 | $95,000 | F |
| Unistress Corp. & Berkshire Concrete Corp. MA | — | 0 | — | — |
| Unistrut International Corporation IL | Manufacturing | 2 | $109,366 | — |
| Unisyn Precision Components OH | Manufacturing | 0 | — | A |
| Unisys Corporation CA | — | 0 | — | — |
| Unisys Corporation PA | Information & Media | 35 | $125,265 | — |
| Unisys Corporation (Call Center) NY | — | 0 | — | — |
| Unisys Corporation Managed Service Center (MSC) TX | — | 0 | — | — |
| UNISYS INFOTECH LLC NC | Professional & Technical Services | 3 | $122,317 | — |
| Unit 7 Fire Protection District IL | Public Administration | 0 | — | A |
| UNIT Company AK | Construction | 0 | — | F |
| Unit Drop Forge Co Inc WI | Manufacturing | 0 | — | F |
| Unit Industries Inc. CA | Manufacturing | 0 | — | A |
| Unit Liner Company OK | Wholesale Trade | 0 | — | C |
| Unit Pack Co., Inc. NJ | Manufacturing | 0 | — | A |
| Unit Process Company WA | Wholesale Trade | 0 | — | A |
| Unit21, Inc. CA | Information & Media | 5 | $209,461 | — |
| Unite Digital, LLC MI | Professional & Technical Services | 2 | $144,768 | — |
| Unite Here Health IL | Finance & Insurance | 1 | $148,949 | — |
| UNITE HERE Local 11 CA | — | 0 | — | — |
| UNITE HERE Local 25 DC | Other Services | 1 | $65,500 | — |
| Unite Private Networks, LLC MO | Information & Media | 1 | $65,000 | — |
| UNITE Professional Salon System CA | — | 0 | — | — |
| Unite USA Inc. NY | Healthcare & Social Assistance | 1 | $245,000 | — |
| Unitec Inc. FL | Construction | 0 | — | D |
| UNITECH BUILDERS, CORP FL | Construction | 0 | — | A |
| Unitech Composites ID | Manufacturing | 0 | — | F |
| Unitech Consulting d/b/a Chameleon Integrated Services MD | — | 0 | — | — |
| Unitech LC. UT | Manufacturing | 0 | — | A |
| Unitech Manufacturing UT | Manufacturing | 0 | — | F |
| UniTech Services Group, Inc. NH | Other Services | 1 | $77,217 | — |
| United CA | — | 0 | — | — |
| United VA | — | 0 | — | — |