- SW Florida Regional Medical Center
- Swain Community Hospital
- Swainsboro-Emanuel County Chamber of Commerce
- Swan Point Yacht and Country Club, Issue MD
- Swana Solid Waste Association
- Swannanoa Valley Youth Development Center
- Swarthmore College
- SWBR Architure
- Swedish Match North America
- Swedish Medical Center
- Swedish Medical Center Organ Transplant Program
- SwedishAmerican Hospital
- Sweetwater Tavern, Centreville
- Sweetwater Tavern, Falls Church
- Sweetwater Tavern, Sterling
- Swift Company
- Swift Denim Group
- Swift Spinning Mills
- Swinerton Builders, Inc.
- Swire Coca-Cola USA
- SWLA Center for Health Services
- Sycamore Medical Center
- Sycamore Shoals Hospital
- SyCom Technologies
- Sylmar Conference Grounds
- Synagro
- Synergy Benefits, Inc.
- Synergy Solutions, Inc.
- Synertx
- Synhrgy HR Technologies Inc.
- Synigent Technologies, Inc.
- Synovus Columbus Bank and Trust Co.
- Syosset Hospital
- Syracuse Convention and Visitors Bureau
- Syscom Services
- System Engineering Group, Anteon Corp.
- System Planning Corporation
- Systematic Solutions Inc.
- Systems Imaging
- Systems Research Group, Inc.
- Syvek Patch
- T C Roberson High School
- T.C. Williams High School
- T.F. Williams Court Apartments
- T.I.G. First Source Inc.
- T.L.C. Services, Inc.
- Taco, Inc.
- Taft Chamber of Commerce - Bakersfield
- Taft Methodist Preschool - Bakersfield
- Tahoe Forest Health System