All Boating Charters
- Sip and Sea Charleston
- Sip and Sea Charleston
- Siren – 60' Iconic Luxury Yacht
- Sirena – Splav & Brod
- Six Shooter Charters
- Skinny Dipn Charters
- Skipper Charters
- Skirtchaser Charters
- SlackTyde Charters
- Slick Calm Charters
- Smokin Hooks
- Smooth Sailing of Miami
- Snap Decision Charters
- Snorkel/Shelling Eco Tour
- Snorkeling Trip With Tamarindo Surf & Tours
- Snorkeling With Sea Turtles
- SoFlo Charters
- SoMax Fishing
- Soleil Boat Tours
- Solevela Yacht Charter
- Solé Watersports
- Something Fishy Charters
- Sorta Salty Charters
- Sosua Party Boats
- Soundside Tours
- South Cruise Adventures
- South Jersey Outfitters
- South Padre Fishing Guide
- Southeast Serenity – Speedboat Adventure
- Southern Angler Fishing Charters
- Southern Angler Fishing Charters
- Southern Angler Fishing Charters
- Southern Angler Fishing Charters
- Southern Belle Charters
- Southern California Adventure, Inc
- Southern Slots Charter Co
- Southern Sons Charters
- Southern Sun Guides
- Southern Tauk Charters
- Southern Voyage Fishing Charters
- Southwest Sportfishing
- SpaceX Bay Tour - South Padre Island TX
- Spanish Wells Island Charters
- Sparus Boats - Luxury Motor Yacht Colnago 38
- Sparus Boats - Luxury Motor Yacht Colnago 45
- Sparus Boats - Rib Boat Marlin
- Speartime Luxury Charters Barbados
- Speedboat Tours Tivat
- Sphynx BCN
- Spirit Of La Paz – Private Chaters
- Sporty, Spacious Deckboat With Lots Of Shade
- Spot Hunter Fishing Guide Services
- Spot Tail Fishing And Tours
- Spot-On Charters
- St. Marks sandbar trip
- St. Pete Sport Fishing Boat Tours
- Stay Fishy - Miami Water Experience
- Stay Salty Charters
- Steal Your Fish Charters, LLC
- Stella Charters
- Stelluna Family Friendly Adventures
- Steph's Charters – I
- Steph's Charters – II
- Steph's Charters – III
- Steph's Charters – IV
- Stockholm boat tour | Private boat trips
- Stolat Fishing LLC
- Storm Rider Fishing Adventures
- Strawhat Charters
- Sufishiente Sportfishing
- Summer Hunter Fishing Charters
- Sun Fun FTL
- Sun Rays
- Sun and Sand Charters
- SunKissed Charters
- Suncat Malta Charters – Nea S
- Suncat Malta Charters – Valentina S
- Suncat Malta Charters – Varela S
- Sunchaser Watersports
- Suncoast Island Adventures!
- Sundancer - Sea Ray 45'
- Sunny Adventures – Margaritas
- Sunny Adventures – PicaFlor
- Sunseeker 55' for up to 12 guest!
- Sunseeker Predator 60' for up to 12 guest!
- Sunset Fishing Zadar
- Sunset Horizons Dolphin & Beach Tours
- Sunset Watersports Key West – Jet Ski Tours
- Sunset Watersports Key West – Parasail
- Sunset Watersports Key West – Sandbar & Kayak
- Sunset Watersports Key West – Sunset Sail
- Sunset and Dolphin Tours Complimentary Bev.
- Sunshine Charters
- Sunshine Charters
- Sunshine Watersports & Tours
- Sunshine Watersports Boat Charter
- Super Express Excursion
- Supreme Fishing Adventures Fiji
- Surf Rider Charters
- Surreel Life – Living the Dream