Forming its current structure in 2019 through a merger involving Steiner Leisure, OneSpaWorld is the dominant global provider of wellness and beauty services at sea. The company reported record revenues of $895 million in 2024, operating health centers on 199 cruise ships and 50 land-based resorts for nearly every major cruise line, including a long-standing 30-year partnership with Royal Caribbean. Their scope continues to grow in 2025, expanding to at least 207 vessels while introducing advanced medical-spa treatments, IV therapy, and cryotherapy to meet the rising demand for holistic luxury wellness.