| Yakima Pediatrics WA | Healthcare & Social Assistance | 0 | — | C |
| Yakima Products, Inc. OR | Manufacturing | 0 | — | A |
| Yakima Specialties, Inc. WI | Manufacturing | 0 | — | F |
| Yakima Valley Farm Workers Clinic WA | Healthcare & Social Assistance | 5 | $166,497 | — |
| Yakima Valley Memorial Hospital Association WA | Healthcare & Social Assistance | 4 | $254,076 | — |
| Yakima Waste Systems, Inc. WA | Administrative & Waste Services | 0 | — | D |
| Yakima-Tieton Irrigation District WA | Utilities | 0 | — | C |
| YAKSHNA SOLUTIONS, INC. VA | Professional & Technical Services | 5 | $92,910 | — |
| Yale Cordage/I&I Sling ME | Manufacturing | 0 | — | B |
| Yale Cordage/I&I Sling NC | Manufacturing | 0 | — | A |
| Yale Cordage/I&I Sling PA | Manufacturing | 0 | — | A |
| Yale Industrial Trucks-Tynan, Inc. IN | Wholesale Trade | 0 | — | D |
| Yale Locks & Hardware TN | — | 0 | — | — |
| Yale Mechanical MN | Construction | 0 | — | F |
| Yale New Haven Health CT | Healthcare & Social Assistance | 0 | — | F |
| Yale New Haven Health RI | Healthcare & Social Assistance | 0 | — | F |
| Yale New Haven Health Services Corporation, Inc. CT | Administrative & Waste Services | 0 | — | A |
| Yale New Haven Hospital CT | Healthcare & Social Assistance | 2 | $72,147 | — |
| Yale Public School District MI | Educational Services | 0 | — | D |
| Yale University CT | Educational Services | 188 | $94,692 | — |
| Yale University OISS CT | Educational Services | 1 | $87,200 | — |
| Yale-New Haven Hospital CT | Healthcare & Social Assistance | 1 | $115,000 | — |
| Yalobusha County Gin Co, Inc MS | Agriculture & Forestry | 0 | — | A |
| Yamada America, Inc IL | Manufacturing | 0 | — | A |
| Yamada and Sons, Inc. HI | Construction | 0 | — | F |
| YAMADA CONSULTING GROUP USA INC. CA | Finance & Insurance | 1 | $90,000 | — |
| YAMADA North America, Inc. OH | Manufacturing | 0 | — | F |
| Yamaha Corporation of America CA | Wholesale Trade | 1 | $105,539 | A |
| Yamaha Golf Car GA | Manufacturing | 0 | — | F |
| Yamaha Jet Boat Mfg. USA TN | Manufacturing | 0 | — | A |
| Yamaha Marine Precision Propellers Inc IN | Manufacturing | 0 | — | F |
| Yamaha Motor GA | Manufacturing | 0 | — | F |
| Yamaha Motor Corporation USA CA | Manufacturing | 5 | $136,007 | — |
| Yamaha Motor Corporation, USA CA | Wholesale Trade | 1 | $135,200 | A |
| Yamaha Motor Corporation, USA GA | Wholesale Trade | 2 | $112,404 | A |
| Yamaha Motor Corporation, USA WI | Wholesale Trade | 0 | — | A |
| Yamaha Motor Manufacturing Company GA | Manufacturing | 1 | $117,187 | F |
| Yamaha Precision Propellers Inc IN | Manufacturing | 0 | — | F |
| Yamaichi Electronics USA, Inc. AZ | Manufacturing | 0 | — | F |
| Yamaichi Electronics USA, Inc. CA | Manufacturing | 0 | — | A |
| Yamasa Corporation USA OR | Manufacturing | 0 | — | F |
| Yamashiro Building & Supply Inc HI | Retail Trade | 0 | — | C |
| Yamashiro, Inc. CA | — | 0 | — | — |
| Yamasho Inc IL | Wholesale Trade | 0 | — | F |
| Yamato Corporation WI | Manufacturing | 0 | — | A |
| Yamato Transport U.S.A., Inc. CA | Transportation & Warehousing | 1 | $71,515 | — |
| Yambay, Inc. WA | Information & Media | 1 | $190,000 | — |
| Yamhill County OR | Public Administration | 0 | — | A |
| Yampa Valley Electric Association CO | Utilities | 0 | — | C |
| Yancey Bros FL | Other Services | 0 | — | A |
