| Wyoming Surgical Associates, P.C. WY | Healthcare & Social Assistance | 1 | $239,200 | — |
| Wyoming Systems Inc WA | Professional & Technical Services | 1 | $51,397 | — |
| Wyrmwood Inc. MA | Manufacturing | 0 | — | F |
| Wyrmwood, Inc. PA | Manufacturing | 0 | — | F |
| Wyrulec Company WY | Utilities | 0 | — | A |
| Wysan Precast MN | Construction | 0 | — | F |
| Wyser Innovative Products, LLC MI | Manufacturing | 0 | — | A |
| Wysocki Electric Inc NJ | Construction | 0 | — | A |
| Wysong Enterprises, Inc. TN | Transportation & Warehousing | 0 | — | A |
| Wytech Industries LLC NJ | Manufacturing | 0 | — | A |
| Wythe County Community Hospital VA | Healthcare & Social Assistance | 0 | — | F |
| Wythe Creek Apartments VA | Real Estate | 0 | — | A |
| Wyze Labs, Inc. WA | Wholesale Trade | 5 | $126,769 | — |
| WZ Wisco WI | Accommodation & Food Services | 0 | — | F |
| WZB Logistics LLC CA | Transportation & Warehousing | 0 | — | F |
| Wärtsilä Caribbean Inc. PR | Other Services | 0 | — | F |
| X & J Steel Construction, Inc. OH | Construction | 0 | — | A |
| X & N VENTURES INC TX | Construction | 2 | $51,688 | — |
| X Border LLC CA | Transportation & Warehousing | 1 | $285,000 | — |
| X Corp. CA | Professional & Technical Services | 8 | $181,375 | — |
| X Corp. TX | Professional & Technical Services | 4 | $200,750 | — |
| X GREENHILL SOLUTION INC. NY | Professional & Technical Services | 1 | $83,200 | — |
| X M Logistics, L.L.C. IN | Transportation & Warehousing | 0 | — | F |
| X Speed Logistics CA | Transportation & Warehousing | 0 | — | F |
| X-Act Finish & Trim, Inc. CA | Construction | 0 | — | F |
| X-Camp Inc. CA | Educational Services | 1 | $68,000 | — |
| X-Cel Specialty Contacts GA | Manufacturing | 0 | — | A |
| X-Chem, Inc. MA | Professional & Technical Services | 1 | $147,439 | — |
| X-Elio North America Inc. DC | Utilities | 0 | — | A |
| X-Energy MD | Professional & Technical Services | 0 | — | A |
| X-F Construction Services, Inc. OH | Construction | 0 | — | F |
| X-FAB Texas TX | Manufacturing | 0 | — | D |
| X-L Plastics NJ | Manufacturing | 0 | — | F |
| X-Microwave, LLC TX | Manufacturing | 0 | — | A |
| X-Port Services Inc. NJ | Transportation & Warehousing | 0 | — | A |
| X-Rite, Incorporated MI | Manufacturing | 0 | — | A |
| X-spine Systems Inc. OH | — | 0 | — | — |
| X. AI LLC CA | Professional & Technical Services | 6 | $295,833 | — |
| X.AI Corp. CA | Professional & Technical Services | 14 | $311,155 | — |
| X1F America, Inc. MA | Professional & Technical Services | 1 | $135,408 | — |
| X3 Management Services CA | Construction | 0 | — | A |
| X4 Alpha LLC NY | Finance & Insurance | 1 | $152,339 | — |
| X4 Logistics LLC CT | Transportation & Warehousing | 0 | — | F |
| X4 Tech Staffing Inc CO | Administrative & Waste Services | 1 | $150,000 | — |
| X42 Global Staffing Corp TX | Administrative & Waste Services | 2 | $112,500 | — |
| Xaar LLC VT | Manufacturing | 0 | — | F |
| Xacom International, LLC GA | Professional & Technical Services | 1 | $124,999 | — |
| Xact Tech dba Comstock Industries NH | Manufacturing | 0 | — | F |
| Xact Tech Inc. dba Comstock Industries NH | Manufacturing | 0 | — | A |
| Xactly Corporation CO | Professional & Technical Services | 1 | $155,303 | — |