All Boating Charters
- San Diego Charters
- San Diego Sailing Excursions
- San Juan Eco Tours – Puerto Rico
- Sandbar Somewhere Charter
- Sandbar/Snorkel/ Dolphins/Sunset Trips
- Sandy Bottom Charters OBX
- Sandy Hook Charters
- Sanpjero
- Santa Marta Boats Charter
- Sarasota Coastal Boat Tours
- Sarasota and Siesta Key Family Boat Tours
- Sayulita 1
- Scales N' Tales Sportfishing LLC
- Sea Bear Charters
- Sea Blue Adventure – Nicar
- Sea Breeze Fishing & Adventures
- Sea Camel Self-drive Speedboat Tour
- Sea Chase Charter
- Sea Cross Luxury Charters
- Sea Daddy 50ft Flybridge - Paddle&Inflatable
- Sea Friends
- Sea Mami 52ft Flybridge w/Paddle&Inflatables
- Sea Monkey 50ft Flybridge Paddle&Inflatables
- Sea Ray Sundeck 270 up to 10 people
- Sea Time Fishing Charters And Boat Tours
- Sea Wolfe Sportfishing
- Sea best charters
- SeaEO I – Key West
- SeaEO I – Marathon
- SeaEO II – Key Largo
- SeaEO III – Hampton,VA
- SeaEO IV – Tampa/St. Petersburg
- SeaRunner Charters
- SeaSpark – Monte Explore
- Seal Chartering
- Sealounge Catamaran 50'
- Searostrattus
- Seascape Charters
- Seaspray
- Seawalker Excursions
- Second Sport Charters
- Sensational Magic Charters
- Seven Day’s Snorkeling
- Shaka in San Carlos
- Shallow Water Experience LLC
- Sharky's Charters
- Shark’s Tours
- Shearwater Charters
- Shockwave Charters
- Short Skirts Sportfishing
- Shotime Charters
- Sidekick Charters
- Sidestep Fiji
- Siesta Key Snorkel
- Sightseeing,Booze,Sunset and Lake Boca Cruise
- Silver Thatch Watersports – Diver
- Silver Thatch Watersports – MB
- Silver Thatch Watersports – Silver Thatch II
- Silver Tuna Sport Fishing
- Simon Says Charters
- Singing Reel Charters
- Sip and Sea Charleston
- Sip and Sea Charleston
- Sirena
- Skinny Dipn Charters
- Skipper Charters
- Skirtchaser Charters
- Skyway Fishing Tours
- SlackTyde Charters
- Smokin Hooks
- Snap Decision Charters
- Snorkel/Shelling Eco Tour
- Snorkeling Trip With Tamarindo Surf & Tours
- Snorkeling With Sea Turtles
- SoFlo Charters
- SoMax Fishing
- Something Fishy Charters
- Sorta Salty Charters
- Sosua Party Boats
- South Cruise Adventures
- South Jersey Outfitters
- South Padre Fishing Guide
- Southern Belle Charters
- Southern California Adventure, Inc
- Southern Escapes
- Southern Slots Charter Co
- Southern Sons Charters
- Southern Sun Guides
- Southern Tauk Charters
- Southern Voyage Fishing Charters
- Southwest Sportfishing
- 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
- Spot Hunter Fishing Guide Services
- St. Pete Sport Fishing Boat Tours
- Stay Fishy - Miami Water Experience