| Zaldivar's Forestry Corporation WA | Agriculture & Forestry | 0 | — | F |
| Zale Delaware, Inc. OH | Retail Trade | 3 | $131,505 | — |
| Zale Deleware Inc (Signet Jewelers) AZ | Retail Trade | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) CA | Retail Trade | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) CT | Retail Trade | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) FL | Retail Trade | 0 | — | F |
| Zale Deleware Inc (Signet Jewelers) IL | Retail Trade | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) NJ | Retail Trade | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) NM | Retail Trade | 0 | — | F |
| Zale Deleware Inc (Signet Jewelers) OH | Retail Trade | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) TX | Management of Companies | 0 | — | A |
| Zale Deleware Inc (Signet Jewelers) WV | Retail Trade | 0 | — | A |
| Zalk Josephs Fabricators, LLC WI | Manufacturing | 0 | — | F |
| ZALL Enterprises DBA. AAA Countertops TX | Manufacturing | 0 | — | A |
| Zallie Family Markets NJ | Retail Trade | 0 | — | F |
| Zallie Supermarkets, Inc. NJ | Retail Trade | 0 | — | F |
| Zallie-Somerset, Inc. NJ | Retail Trade | 0 | — | F |
| Zaluzny Excavating Corporation VT | Construction | 0 | — | A |
| Zam Network LLC CA | Professional & Technical Services | 2 | $76,885 | — |
| Zambelli Fireworks Manufacturing Co. PA | Arts & Entertainment | 0 | — | F |
| Zamboni Company USA, Inc. CA | Manufacturing | 0 | — | F |
| Zamco Technologies ID | Manufacturing | 0 | — | F |
| ZAME VENTURES, INC. WA | Retail Trade | 0 | — | A |
| Zamir Sewing Machine Co. Inc. CA | Wholesale Trade | 1 | $79,040 | — |
| Zamma Corporation VA | Wholesale Trade | 1 | $85,000 | B |
| Zampell Refractories Inc. LA | Construction | 0 | — | A |
| Zampell Refractories Inc. MA | Construction | 0 | — | C |
| Zander Colloids MI | Manufacturing | 0 | — | D |
| Zanders US, Inc. NY | Professional & Technical Services | 1 | $130,000 | — |
| Zane Solutions LLC TX | Professional & Technical Services | 3 | $78,000 | — |
| Zaniboni Lighting, LLC FL | Manufacturing | 1 | $96,158 | — |
| zanini Tennessee TN | Manufacturing | 0 | — | F |
| Zanker Road Resource Management, LLC CA | Administrative & Waste Services | 0 | — | F |
| Zanker Road Resource Management, LLC d/b/a Florin Perkins Public Disposal Site CA | Administrative & Waste Services | 0 | — | F |
| Zanker Road Resource Management, LLC d/b/a Hayward Transfer Station CA | Administrative & Waste Services | 0 | — | A |
| Zanker Road Resource Management, LLC d/b/a Z-Best Products CA | Administrative & Waste Services | 0 | — | F |
| ZanneCo, Inc MO | Construction | 0 | — | A |
| Zao Bakery & Cafe MN | — | 0 | — | — |
| Zap Energy, Inc WA | Professional & Technical Services | 1 | $95,368 | — |
| ZAP Engineering and Construction Services, Inc CO | Professional & Technical Services | 0 | — | A |
| Zap Surgical Systems, Inc. CA | Manufacturing | 1 | $187,902 | — |
| Zapalac/Reed Construction TX | Construction | 0 | — | F |
| Zapata Construction MA | Construction | 0 | — | F |
| Zapata Construction NY | Construction | 0 | — | D |
| Zapata Seed Company CO | Agriculture & Forestry | 0 | — | A |
| ZAPCOM GROUP, INC. TX | Professional & Technical Services | 2 | $104,722 | — |
| Zapip Corporation IL | Professional & Technical Services | 1 | $104,000 | — |
| ZapLabs LLC NJ | Real Estate | 1 | $199,534 | — |
| Zapp Packaging, Inc. CA | Manufacturing | 0 | — | F |
| Zapp Precision Strip, Inc MA | Manufacturing | 0 | — | F |
