Tour operator Thomson Holidays operates cruises to the Mediterranean primarily for the British trade.

Transocean Tours operates cruises for the German-speaking trade.

Travel Dynamics, formerly known as Classical Cruises, was founded more than three decades ago and offers educational and cultural cruises to various parts of the world. It offers a unique rewards program called the Odysseus Circle, which requires no registration fee. Any traveler on trips operated by Travel Dynamics International since January 1, 2004 is eligible for this rewards program, and only needs to call Travel Dynamics in order to register for it. Travelers earn nautical miles based upon the exact number of miles cruised on a travel program and can then redeem these miles for discounts on their next Travel Dynamics trip.

Venus Cruise, a unit of the Japan Cruise Line, caters to the Japanese-speaking traveler.

*Amazing Grace, a supply vessel for the Windjammer sailing ships, operates cruises between Trinidad and Grand Bahama Island.

Windjammer has been offering laidback cruising in the Caribbean and off Central America for more than 50 years.

Windstar Cruises was created in the mid-1980's with a vision to offer an alternative to the typical cruise or resort vacation. It was acquired by Holland America Line in 1987. Two years later, both cruise lines were acquired by the Carnival Corporation. The company continues to operate as a separate entity, offering its unique brand of cruises.