Here are the top cruise companies in 2025 (ranked by overall industry size, market share and visibility), with a short note on why each is prominent:

1. Carnival Corporation & plc — the largest cruise company by fleet/brands (Carnival Cruise Line, Princess, Holland America, Costa, AIDA, Cunard, P&O, etc.) and still the industry leader in passenger capacity and revenue in 2025. (cruiseindustrynews.com, altexsoft.com)

2. Royal Caribbean Group — the second-largest group (Royal Caribbean International, Celebrity, Silversea) and a leader in large-ship innovation (Icon / Icon-class ships and other major newbuilds). (cruiseindustrynews.com, time.com)

3. MSC Cruises — Europe-based private operator that has grown rapidly and is one of the top global players by capacity and new-ship orderbook. (cruiseindustrynews.com, altexsoft.com)

4. Norwegian Cruise Line Holdings (NCLH) — owner of Norwegian Cruise Line, Oceania and Regent Seven Seas; a top group in capacity and premium/luxury market segments, with an aggressive growth/orderbook plan. (cruiseindustrynews.com, altexsoft.com)

5. Disney Cruise Line — a smaller but high-profile, high-satisfaction operator (especially for families); frequently ranks at or near the top in reader/guest awards. (disneycruiselineblog.com, prnewswire.com)

6. Viking — a leader in river cruising and an increasingly notable ocean/cruise-ship operator in the premium market. (prnewswire.com, altexsoft.com)

7. Luxury & expedition leaders (examples) — Regent Seven Seas, Seabourn, Silversea, Seabourn and smaller expedition lines (e.g., Hurtigruten, Aqua Expeditions) are the top names in luxury and expedition cruising in 2025. (prnewswire.com, altexsoft.com)

If you’d like, I can:

• show a ranked list by a specific metric (passenger volume, market share, revenue, fleet size or guest-award rankings), or
• give the latest market-share or passenger-capacity numbers and sources for the top companies.