| Alta Bates Summit Medical Center/Summit CA | — | 0 | — | — |
| Alta Bates Summit Meidcal Center - Summit Campus CA | — | 0 | — | — |
| Alta California Regional Center CA | Healthcare & Social Assistance | 0 | — | A |
| Alta Care Homehealth, Inc NV | Healthcare & Social Assistance | 0 | — | A |
| ALTA Concrete, Inc CA | Construction | 0 | — | F |
| Alta Enterprises LLC. CT | Other Services | 0 | — | F |
| Alta Enterprises LLC. FL | Other Services | 0 | — | D |
| Alta Enterprises LLC. MA | Other Services | 0 | — | F |
| Alta Enterprises LLC. ME | Other Services | 0 | — | B |
| Alta Enterprises LLC. NH | Other Services | 0 | — | A |
| Alta Enterprises LLC. OH | Other Services | 0 | — | C |
| Alta Enterprises, LLC IL | Other Services | 0 | — | F |
| Alta Enterprises, LLC IN | Other Services | 0 | — | A |
| Alta Enterprises, LLC MI | Other Services | 0 | — | C |
| Alta Enterprises, LLC VA | Wholesale Trade | 0 | — | A |
| Alta Finance Group, LLC MD | — | 0 | — | — |
| Alta Finish and Stair, Inc. CA | Manufacturing | 0 | — | A |
| Alta Forest Products ID | Manufacturing | 0 | — | A |
| Alta Forest Products WA | Manufacturing | 0 | — | F |
| Alta Forest Products LLC-Eastport ID | Manufacturing | 0 | — | A |
| Alta Fresh LLC, DBA Chelan Fresh WA | Wholesale Trade | 0 | — | C |
| Alta Gardens Care Center CA | Healthcare & Social Assistance | 0 | — | F |
| Alta Mesa Services, LP TX | — | 0 | — | — |
| Alta Monte Care TX | Healthcare & Social Assistance | 0 | — | A |
| Alta Nursery, Inc. CA | Agriculture & Forestry | 0 | — | A |
| Alta Rancho Pet and Bird Hospital CA | Professional & Technical Services | 0 | — | A |
| ALTA ready mix, INC. CA | Manufacturing | 0 | — | A |
| ALTA Refrigeration GA | Construction | 0 | — | A |
| Alta Resources CA | — | 0 | — | — |
| Alta Senior Living, Inc. CA | Healthcare & Social Assistance | 0 | — | F |
| Alta Sierra Inc CA | Agriculture & Forestry | 0 | — | F |
| Alta Ski Lifts UT | Arts & Entertainment | 0 | — | B |
| Alta Systems Inc. FL | Manufacturing | 0 | — | A |
| Alta Talent Inc CA | Information & Media | 3 | $88,294 | — |
| Alta Transportation CO | Transportation & Warehousing | 0 | — | A |
| Alta Vista Farms, LP. CA | Agriculture & Forestry | 0 | — | F |
| Alta Vista Healthcare & Wellness Centre CA | Healthcare & Social Assistance | 0 | — | F |
| Alta Vista Mini Storage Phoenix AZ | Real Estate | 0 | — | A |
| Alta Vista Rehab & Healthcare TX | Healthcare & Social Assistance | 0 | — | D |
| Alta Warehousing and Logistics CA | Transportation & Warehousing | 0 | — | B |
| Altacare of Montana MT | — | 0 | — | — |
| Altadena Town & Country Club CA | — | 0 | — | — |
| Altaeros Energies, Inc. MA | Information & Media | 1 | $110,000 | — |
| Altaflex, Inc. CA | Manufacturing | 0 | — | A |
| Altaflo NJ | Manufacturing | 0 | — | A |
| AltaGas CA | Utilities | 0 | — | F |
| Altagas WA | Wholesale Trade | 0 | — | F |
| Altai Ventures Advisors LLC CT | Finance & Insurance | 1 | $165,000 | — |
| ALTAIR ENGINEERING, INC. MI | Professional & Technical Services | 28 | $111,457 | — |
| Altair Enviromental Group LLC FL | Construction | 0 | — | F |
