- Community Health Network Business Development
- Community Health Partnership
- Community Healthcare System
- Community Heart and Vascular - Community Health Network
- Community Hospital
- Community Hospital
- Community Hospital Anderson - Community Health Network
- Community Hospital East - Community Health Network
- Community Hospital North - Community Health Network
- Community Hospital of Huntington Park
- Community Hospital of San Bernardino
- Community Hospital South - Community Health Network
- Community Hospital, Crozer-Keystone Health System
- Community Hospital, Inc.
- Community Hospitals and Wellness Centers - Bryan
- Community Howard Regional Health
- Community Integration Incorporated
- Community Medical Center
- Community Medical Center
- Community Memorial Hospital
- Community Memorial Hospital
- Community Memorial Hospital
- Community Memorial Hospital of Staunton
- Community of Leadership, Inc.
- Community Parent Center
- Community Regional Medical Center
- Community Regional Medical Center - Fresno
- Community Resource Credit Union
- Community Shares
- Community State Bank
- Community Teamwork
- Community Tissue Services
- Community Village-Saginaw
- Community Wellness Center
- CommunityCare -Affiliated with Geisinger
- Companion Habitats, Inc.
- Compass Memorial Healthcare
- Compass Technology Management
- CompassionCare Hospice Las Vegas
- Compeq International Corp.
- Comphealth
- Complete Catering
- Complete Conference Management
- Complete Home Repair
- Comprehensive Housing Assistance Inc.
- Compressor Controls Corp
- CompuCom
- CompuData, Inc.
- Computer Associates International
- Computer Science and Technology Inc.