| AmaWaterways | Ponant |
| American Cruise Lines | Princess |
| American Queen Steamboat Company / Victory Cruise Line | Quark |
| Aqua Expeditions | Regent Seven Seas |
| Avalon | Royal Caribbean International |
| Azamara | Seabourn |
| Carnival | SeaDream |
| Celebrity Cruises | Shore Excursions Group |
| Crystal Ocean | Silversea Cruises |
| Cunard | Star Clippers |
| Holland America Line | The Moorings |
| Hurtigruten | Un-cruise |
| Iceland Pro | Uniworld |
| Linblad Expeditions | Virgin Voyages |
| Norwegian Cruise Line | Viking |
| Oceania Cruises | Windstar Cruises |
| Paul Gauguin Cruises | Zegrahm Expeditions |
