| XSYS NC | Manufacturing | 0 | — | A |
| XtalPi Inc. MA | Professional & Technical Services | 1 | $107,557 | — |
| Xtant Medical MT | Manufacturing | 0 | — | F |
| Xtek Inc OH | Manufacturing | 0 | — | D |
| Xtek Inc PA | Manufacturing | 0 | — | F |
| Xtel Communications Inc NJ | Information & Media | 1 | $110,000 | — |
| Xtend Healthcare LLC NJ | — | 0 | — | — |
| Xtensible Solutions LLC FL | Information & Media | 1 | $202,500 | — |
| Xtera, Inc. TX | Manufacturing | 0 | — | A |
| Xtermco, Inc. HI | Administrative & Waste Services | 0 | — | C |
| XTERRA SOLUTIONS, INC. CA | Professional & Technical Services | 1 | $151,000 | — |
| XTGLOBAL, INC. TX | Professional & Technical Services | 10 | $114,098 | — |
| Xtivia Inc. CO | Professional & Technical Services | 5 | $111,186 | — |
| XTL, Inc PA | — | 0 | — | — |
| XTO Energy Inc. NM | — | 0 | — | — |
| XTO Energy Inc. TX | Mining & Extraction | 3 | $193,913 | — |
| XTO Energy Inc. (Donie #2) TX | — | 0 | — | — |
| XTO Energy Inc. (Donie) TX | — | 0 | — | — |
| XTO Energy Inc. (Franklin) TX | — | 0 | — | — |
| XTO Energy Inc. (Jewett #2) TX | — | 0 | — | — |
| XTO Energy Inc. (Jewett) TX | — | 0 | — | — |
| XTO Energy Inc. (Teague #2) TX | — | 0 | — | — |
| XTO Energy Inc. (Tyler) TX | — | 0 | — | — |
| XTO Energy Western Div Office CO | — | 0 | — | — |
| XTRA Airways FL | — | 0 | — | — |
| Xtra Factors KS | Manufacturing | 0 | — | A |
| Xtra Myles Logistics LLC MN | Transportation & Warehousing | 0 | — | F |
| XTRACIT INC NC | Professional & Technical Services | 7 | $95,338 | — |
| XTRALIGHT MANUFACTURING TX | Manufacturing | 0 | — | D |
| Xtramile Soft LLC NC | Professional & Technical Services | 1 | $110,950 | — |
| Xtreme Aviation LLC FL | Transportation & Warehousing | 0 | — | F |
| XTREME BULLETS MFG LLC NV | Manufacturing | 0 | — | A |
| Xtreme Demolition, Inc. MI | Construction | 0 | — | A |
| Xtreme Elements LLC OH | Construction | 0 | — | F |
| Xtreme Express LLC OH | Transportation & Warehousing | 0 | — | F |
| XTREME LASHES, LLC TX | Wholesale Trade | 0 | — | C |
| Xtreme Manufacturing NV | Manufacturing | 0 | — | F |
| Xtreme Manufacturing, LLC CA | — | 0 | — | — |
| Xtreme Marine Corporation TN | Manufacturing | 0 | — | B |
| XTREME MASON CONTRACTORS MI | Construction | 0 | — | A |
| Xtreme Powerline Construction MI | Utilities | 0 | — | A |
| Xtreme Powerline Construction Inc FL | Utilities | 0 | — | C |
| Xtreme Solutions, Inc. CA | — | 0 | — | — |
| Xtreme Truckin, LLC PA | Transportation & Warehousing | 0 | — | C |
| Xtreme Trucking, LLC WI | Transportation & Warehousing | 0 | — | A |
| Xttollo MN | Healthcare & Social Assistance | 0 | — | A |
| XUNJING TECHNOLOGY INC. CA | Professional & Technical Services | 1 | $70,000 | — |
| Xuper Funding LLC NY | Finance & Insurance | 1 | $62,400 | — |
| Xuron Corporation MA | Manufacturing | 0 | — | A |
| XXL ENTERPRISES INC dba: MCKENZIE TAYLOR CONSTRUCTION OR | Construction | 0 | — | A |