All Boating Charters
- San Juan Puerto Rico Chárter
- Sandbar Somewhere Charter
- Sandbar/Snorkel/ Dolphins/Sunset Trips
- Sandy Hook Charters
- Sandy Lin Charters
- Sanpjero
- Santa Marta Boats Charter
- Santorini Boat Tour
- Sarasota Boat Excursions
- Sarasota Coastal Boat Tours
- Sarasota and Siesta Key Family Boat Tours
- Sayulita 1
- Scales N' Tales Sportfishing LLC
- Screaming Eagle Charters
- Sea Bear Charters
- Sea Blue Adventure – Nicar
- Sea Blue Charters
- Sea Breeze Fishing & Adventures
- Sea Bull Aruba – Fun Onboard Sea Blue
- Sea Chase Charter
- Sea Cross Luxury Charters
- Sea Daddy 50ft Flybridge - Paddle&Inflatable
- Sea Dog Cruising
- Sea Dog Sailing – Lake Michigan/Milwaukee
- Sea Dolphin Charters
- Sea Dreams Tours and Fishing
- Sea Eagle Rules Party Boat
- Sea Mami 52ft Flybridge w/Paddle&Inflatables
- Sea Monkey 50ft Flybridge Paddle&Inflatables
- Sea Mountain Charters
- Sea Ray 46' for up to 12 guest!
- Sea Ray SDX 29' for up to 6 guest!
- Sea Señor 52ft Sea Ray Sundancer
- Sea Time Fishing Charters And Boat Tours
- Sea Wings Charters
- Sea Wings Charters ll
- Sea Wolfe Sportfishing
- Sea best charters
- Sea tide
- SeaDipity Adventures
- SeaDuced Adventures
- 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
- Seacolada Mauritius – Ile aux Cerfs
- Seal Chartering
- Sealounge Catamaran 50'
- Seamocean – Jordan Valley
- Seamocean – Rhino Ride Self-drive Speedboat
- Seamocean – Sea Camel Self-drive Speedboat
- Searostrattus
- Seas N' Cays - 42' Double Decker Catamaran
- Seas The Adventure
- Seas The Day Boat Tours
- Seas The Day Destiny
- Seascape Charters
- Seaside Napoli
- Seaspray
- Seawalker Excursions
- Seawork charters
- Seañorita 43ft Sea Ray Sundancer
- Secluded Charters
- Second Generation Bay Boat Charters
- Second Generation Fishing Charters Key West
- Second Sport Charters
- Secret Cays Bahamas
- Seek N Fishing Charter
- Sensational Magic Charters
- Serenity Boat Charters–Bluelagoon,Comino&Gozo
- Seven Day’s Snorkeling
- Shaka in San Carlos
- Shallow Water Experience LLC
- Sharkcana Yachts – Private Yacht Excursions
- Sharky's Charters
- Shark’s Tours
- Shearwater Charters
- Shockwave Charters
- Shoki Charters
- Shooter Dog Cruises
- Shore Thing Charters OCNJ
- Shore-Thing Charters
- Short Skirts Sportfishing
- Shotime Charters
- SiP Travel – Blue Cave Adventure
- SiP Travel – Boka Bay Tour
- Sidekick Charters
- Sidestep Fiji
- Sierra Surf House
- Siesta Cruise Boat Tours
- Siesta Key Snorkel
- Sightseeing, Booze Cruise
- 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