- Summit the Health & Rehabilitation Services
- Sumter County Disabilities and Special Needs Board
- Sun and Ski Sports
- Sun Capsule
- Sun Chemical Corporation
- Sun City
- Sun City Tanning
- Sun City Tanning Salon
- Sun Cleaners
- Sun Club
- Sun Com Authorized Dealer
- Sun Construction
- Sun Country Cleaners
- Sun Deck
- Sun Devil Auto
- Sun Electric
- Sun Fashion
- Sun Graphics
- Sun Loan Company
- Sun Mart
- Sun Nails
- Sun National Bank
- Sun Palace
- Sun Rental Center
- Sun Room
- Sun Seekers
- Sun Shack
- Sun Shade Optique
- Sun Signs
- Sun Spa
- Sun Spot
- Sun Tan City
- Sun Valley Apartments
- Sun Wholesale
- Sunbeam Bakery
- Sunbeam Bread
- Sunbelt Credit
- Sunbelt Rentals
- Sunbelt Title Agency