| 1611 Monroe Investors LLC | Disregarded entity | Real estate | OH | — |
| 300 Madison Building LLC | Disregarded entity | Real estate | OH | 822062486 |
| BALL Park Properties LLC | Disregarded entity | Real estate | OH | 823954332 |
| IST Theatre LLC | Disregarded entity | Community arts facility | OH | — |
| Kapios LLC | Disregarded entity | Software development | OH | 812624635 |
| Marina District Development LLC | Disregarded entity | Real estate | OH | — |
| PHS Ventures LLC | Disregarded entity | Health care management services | DE | 341880473 |
| Promedica Active Mobility LLC | Disregarded entity | Durable medical equipment | OH | 815178173 |
| Promedica International LLC | Disregarded entity | Consulting services | OH | 832427163 |
| Promedica Shared Services LLC | Disregarded entity | Holding company | OH | 883490894 |
| PHS Toledo Innovation Center Holdings LLC | Disregarded entity | Holding company | OH | 871433009 |
| Toledo Riverfront Hotel LLC | Disregarded entity | Real estate | OH | 422211190 |
| BAY Park Community Hospital | Related tax-exempt org | Hospital | OH | 341883132 |
| Community Health Center of Branch County | Related tax-exempt org | Hospital | MI | 386108110 |
| Defiance Hospital Auxiliary | Related tax-exempt org | Hospital / foundation support | OH | 510173779 |
| Defiance Hospital INC | Related tax-exempt org | Hospital | OH | 344446484 |
| EMMA L Bixby Medical Center | Related tax-exempt org | Hospital | MI | 382796005 |
| EMMA L Bixby Medical Center Auxiliary | Related tax-exempt org | Hospital / foundation support | MI | 382149602 |
| Fostoria Hospital Association | Related tax-exempt org | Hospital | OH | 340898745 |
| Fostoria Hospital Auxiliary | Related tax-exempt org | Hospital / foundation support | OH | 346517634 |
| HCR Manorcare Foundation INC | Related tax-exempt org | Foundation | OH | 522031975 |
| HCR Manorcare INC | Related tax-exempt org | Skilled nursing facilities | OH | 825373223 |
| Heartland Hospice Memorial Fund INC | Related tax-exempt org | Foundation | OH | 270497199 |
| Herrick Medical Center Auxiliary | Related tax-exempt org | Hospital / foundation support | MI | 383076105 |
| Herrick Memorial Hospital INC | Related tax-exempt org | Hospital | MI | 383049015 |