- Mercy Medical Center - New Hampton
- Mercy Medical Center - North Iowa
- Mercy Medical Center - Redding Guild
- Mercy Medical Center - Sioux City
- Mercy Medical Center - West Lakes
- Mercy Medical Center Redding
- Mercy Medicl Center - Cedar Rapids
- Mercy Memorial - Monroe
- Mercy Memorial Hospital
- Mercy Memorial Hospital of Urbana
- Mercy Merced Medical Center
- Mercy Nazareth Hospital
- Mercy Philadelphia Hospital
- Mercy Rehabilitation Hospital Fort Smith
- Mercy San Juan Medical Center
- Mercy St. Anne Hospital
- Mercy St. Charles Hospital
- Mercy-Springfield Communities
- Mercyhealth
- Mercyhealth Hospital and Medical Center-Walworth
- MercyOne Cedar Falls
- MercyOne Centerville Medical Center
- MercyOne Des Moines
- MercyOne Dubuque Medical Center
- MercyOne Elkader Medical Center
- MercyOne Medical Center North Iowa
- MercyOne Medical Center West Des Moines
- MercyOne New Hampton
- MercyOne Newton Medical Center
- MercyOne North Iowa
- MercyOne Oelwein
- MercyOne Primghar Medical Center
- MercyOne Sioux City
- MercyOne Waterloo Medical Center
- Meredith Corp.
- Meridia Audience Response
- Meridian Health Systems Data Center
- Meridian One Corporation
- Merill Lynch
- Meristar Hotels and Resorts, Inc.
- Merit Construction Company
- Merit Health Biloxi
- Merit Health Central Mississippi
- Merit Health River Region
- Merit Health Wesley
- Merit Hospital
- Merit Medical
- MeritCare Health Systems
- Meritor, Inc.
- Meritus Health