Sailing and Boating schools
- 1-877-SEA-SKILLS Yacht Delivery
- 123 Yacht Charter
- 1ST Wave Powerboat Training
- A Colorado Whitewater Rafting Adventure
- A Mustad Marine Yacht Delivery
- AAY - Croatia Yacht Charter
- Abaris Training
- Academy of Sail
- Accredited & Certified Marine Surveyors
- Adrenaline Sailing
- Adriatic yacht charter
- Adventure Sailing TIAN
- Aegean Sailing School
- Alaska on the Home Shore
- All Marine Watersports
- Alliance Management Services
- Alonissos excursions
- Alonnisos
- American Boat Captains, LLC
- American Yacht Institute
- An Island Symphony
- Anacortes Yacht Charters
- Andiamoci a Vela
- Annapolis Sailing School
- Aquapower Sea School
- Aquavids.com
- Arban Yacht Charters
- ASA Sailing Instruction Bay Bridge Sailing School
- ASH Yachting
- Asia Hydrosail