- Sun Valley Resort
- Suncoast Schools Federal Credit Union
- Sundance
- Sundance Lodging Incorporated
- Sundance Mechanical and Utility Corp.
- Sundial Beach Resort, Sanibel Island
- Sundial Lodge at the Canyons, Park City
- Sundt Senior Living
- Sungard
- Sungard Pentamation Inc.
- Sunnyside
- Sunnyside Unified School District
- Sunnyside Village-Nursing Home
- Sunrise Assisted Living
- Sunrise Community Health Center
- Sunrise Hospital and Medical Center - Sunrise Children's Hospital
- Sunrise Medical
- Sunrise Rotary Jeremy Ranch)
- Sunrise Senior Living
- Sunrise Suites Resort, Key West
- Sunriver Resort
- Sunset Ridge Elementary
- Sunshine Sachs Consultants
- Sunshine Structures, Inc.
- Sunstate Management Company
- SunTrust Bank
- Suntrust Bank, Greater Washington
- SunTrust Mortgage
- SUNY Downstate Medical Center
- SUNY Old Westbury
- SUNY Update Medical University Department of Family Medicine
- SUNY Upstate Medical University
- Super 8 by Wyndham Rapid City Rushmore Rd
- Super 8 Espanola, NM
- Super 8 Motel, Calumet Park
- Super 8 Pagosa Springs
- Super 8 Silver City, NM
- Super 8 Truth or Consequences, NM
- Super 8, Roseville, MN
- Super Markets of Cherry Hill
- Superior Court of Arizona - Maricopa County
- Superior Court Pinal County
- Superior Court Yuma County
- Superior Design International, Inc.
- Superior Services, Inc.
- Superstition Springs Lexus
- Supervalue
- Supreme Court of the United States
- Suram Trading Corporation
- Surety Information Office