| Affinity Health System | Related tax-exempt org | Health system | IL | 391568866 |
| Alabama Providence Healthcare Services | Related tax-exempt org | Support providence hospital | AL | 462847744 |
| Alexian Brothers Ambulatory Group | Related tax-exempt org | Physicians services | IL | 364336931 |
| Alexian Brothers Behavioral Health Hospital | Related tax-exempt org | Behavioral health hospital | IL | 364251848 |
| Alexian Brothers Bonaventure House | Related tax-exempt org | Housing and supportive care services for persons with HIV/AIDS | IL | 363527899 |
| Alexian Brothers Center for Mental Health | Related tax-exempt org | Outpatient community mental health services | IL | 363045007 |
| Alexian Brothers Community Services | Related tax-exempt org | PACE- comprehensive & coordinated community based services | IL | 364344423 |
| Alexian Brothers Health System | Related tax-exempt org | Supports the provision of healthcare for related corporations for which it is a member | IL | 363260495 |
| Alexian Brothers Hospital Network | Related tax-exempt org | Supports the provision of healthcare for related corporations | IL | 363276552 |
| Alexian Brothers Lansdowne Village | Related tax-exempt org | Skilled nursing facility | MO | 431470362 |
| Alexian Brothers Medical Care Group NFP | Related tax-exempt org | Physicians services | IL | 471930457 |
| Alexian Brothers Medical Center | Related tax-exempt org | Acute care hospital | IL | 362596381 |
| Alexian Brothers Medical Group Specialty Care | Related tax-exempt org | Specialty physician practice group | IL | 811110738 |
| Alexian Brothers of SAN JOSE INC | Related tax-exempt org | Acute care hospital (sold in 1998) | TX | 941530037 |
| Alexian Brothers Senior Ministries | Related tax-exempt org | Supports the provision of healthcare for related corporations | IL | 364484290 |
| Alexian Brothers Services INC | Related tax-exempt org | HUD housing | MO | 431295333 |
| Alexian Brothers Sherbrooke Village | Related tax-exempt org | Skilled nursing facility | MO | 431592502 |
| Alexian Brothers Specialty Group | Related tax-exempt org | Specialty physician practice group | IL | 800710751 |
| Alexian Village of Milwaukee INC | Related tax-exempt org | Continuing care retirement community | WI | 391351584 |
| Alexian Village of Tennessee | Related tax-exempt org | Continuing care retirement community | TN | 621136742 |
| Alverno Provena Hospital Laboratories INC | Related tax-exempt org | Health care | IN | 203238867 |
| Arthur Merkle - Clara Knipprath Nursing Home | Related tax-exempt org | Retirement community | IL | 362841358 |
| Ascension ALL Saints Hospital INC | Related tax-exempt org | Hospital | WI | 391264986 |
| Ascension Arizona | Related tax-exempt org | Hospital | AZ | 860455920 |
| Ascension Borgess Allegan Foundation | Related tax-exempt org | Fundraising | MI | 382802463 |