| CIGNA HOLDING COMPANYBloomfield, CT · Active | Bloomfield, CT | Corporation | Jun 3, 1982 | Active |
| DIVERSIFIED PHARMACEUTICAL SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jun 7, 1994 | Active |
| CIGNA HEALTH CORPORATIONBloomfield, CT · Active | Bloomfield, CT | Corporation | Jul 3, 1995 | Active |
| ACCREDO HEALTH GROUP, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jul 22, 1997 | Active |
| EXPRESS SCRIPTS SERVICES COMPANYLocation not reported, CT · Active | Location not reported, CT | Corporation | Jan 5, 1999 | Active |
| EXPRESS SCRIPTS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Sep 7, 2000 | Active |
| MEDCO HEALTH SOLUTIONS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jul 11, 2002 | Active |
| PRIORITY HEALTHCARE DISTRIBUTION, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Mar 14, 2005 | Active |
| EXPRESS SCRIPTS ADMINISTRATORS, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Jun 20, 2005 | Active |
| AHG OF NEW YORK, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 2, 2008 | Active |
| MEDCO HEALTH SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | May 5, 2010 | Active |
| MATRIX HEALTHCARE SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jul 16, 2010 | Active |
| EXPRESS SCRIPTS SALES OPERATIONS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 25, 2017 | Active |
| EVERNORTH CARE SOLUTIONS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 29, 2021 | Active |
| EVERNORTH STRATEGIC DEVELOPMENT, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 30, 2020 | Active |
| Cigna-Evernorth Services Inc.Location not reported, CT · Active | Location not reported, CT | Corporation | Dec 30, 2020 | Active |
| EXPRESS SCRIPTS PHARMACY, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Feb 2, 2021 | Active |
| EVERNORTH SALES OPERATIONS, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Jan 19, 2022 | Active |
| ProHealth Pharmacy Solutions, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Mar 9, 2023 | Active |
| EVERNORTH FEDERAL SERVICES, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Apr 9, 2025 | Active |
| MAH PHARMACY, L.L.C.Location not reported, CT · Active | Location not reported, CT | LLC | Jul 11, 2025 | Active |
| LYNNFIELD COMPOUNDING CENTER, INC.Location not reported, CT · Active | Location not reported, CT | Corporation | Aug 10, 2026 | Active |