All Boating Charters
- SoleMare LLC
- Soleil Sport Fishing – Boat Tours
- Solevela Sailing Yacht Charter Go One
- Solmar Aegina Villa & Yacht
- Solo Good
- Solrise Cruises – Sail La Vie
- Solé Watersports – Private Excursions
- Something Fishy Charters
- Sorrento Sea Service – Siren
- Sorta Salty Charters
- Soundside Tours
- South Cruise Adventures
- South Flow Charters
- South Jersey Outfitters
- South Ole Sails - Quicksilver 755
- South Ole Sails – Beneteau Oceanis Clipper 41
- South Ole Sails – Jet Ski
- South Padre Fishing Guide
- Southern Angler Fishing Charters
- Southern Angler Fishing Charters
- Southern Angler Fishing Charters
- Southern Angler Fishing Charters
- Southern Belle Charter
- Southern California Adventure, Inc
- Southern Slots Charter Co
- Southern Sons Charters
- Southern Sun Guides
- Southern Tauk Charters
- Southern Voyage Eco/Sunset Tours
- Southwest Shorelines
- Southwest Sportfishing
- Sozopol Boat Tours
- SpaceX Bay Tour (not launch days)
- SpaceX Rocket Launch
- Spanish Wells Island Charters
- Spark Waves Group – Speed Boat "Selena"
- Sparrow
- Sparus Boats - Luxury Motor Yacht Colnago 38
- Sparus Boats - Luxury Motor Yacht Colnago 45
- Sparus Boats - Rib Boat Marlin
- Sparviere Boat Tours – Relaxing Day In Capri
- Speartime Luxury Charters Barbados
- Speed Boat Albatross
- Speed Boat adventures
- Speedboat Maria
- Speedboat Phi Phi and Maya Bay Tour
- Speedboat Prasitporn Pattaya
- Speedboat Tours Tivat
- Speranza 40 – Island Hopping Tour
- Sphynx BCN
- Spindrift Charters – Grand Cayman
- Spinnaker Sailing SF
- Spirit Of La Paz – Private Chaters
- Split Sea Tours
- SpongeBob Kayak Ecotours
- Sport Fishing Private Boat Charter Costa Rica
- Sportfishing Maestro
- Sportsman Charters
- Sportsmans Adventure Charters
- Sporty, Spacious Deckboat With Lots Of Shade
- Spot Hunter Fishing Guide Services
- Spot Tail Fishing And Tours
- Spot-On Charters
- Spronk Catamarans
- Squid Row Charters and Boat Tours
- St. Pete Beach Boat Tour
- St. Pete Sport Fishing Boat Tours
- Starlet
- Stay Fishy - Miami Water Experience
- Stay Salty Charters
- Steal Your Fish Charters, LLC
- Stefan
- Stella Charters
- Stelluna Family Friendly Adventures
- Steph's Charters II
- Steph's Charters – I
- Steph's Charters – III
- Steph's Charters – IV
- Stewart’s Sportfishing and Charters
- Stingray City Cayman Islands
- Stockholm boat tour | Private boat trips
- Storm Rider Fishing Adventures
- Strawhat Charters
- Strea Charters Aruba
- Stroupe Boat and Fishing Charters
- Subwing Costa Rica
- Sufishiente Sportfishing
- Sugar Daddy Boat
- Summer Hunter Fishing Charters
- Sun & Fun Large Group Pontoon + Add-on Boats
- Sun Fun FTL
- Sun King Charters
- Sun Odyssey 490 – ADAMASTOS
- Sun Rays
- Sun Up Charters
- SunGhada Boat Tour
- SunKissed Charters
- Suncat Malta Charters – Comino Adventure
- Suncat Malta Charters – Laura S
- Suncat Malta Charters – Nea S