This fast-growing hot tub supplier celebrated its twelfth anniversary this year. Founder and managing director Rob Carlin started selling hot tubs on eBay in 2011 and launched the firm’s flagship brand, Platinum Spas, in 2016. This Chesterfield-based company’s sales, boosted by the launch of new product ranges and international expansion, increased from £15.4m in 2020 to £57.2m in 2022. Superior Wellness now works with over 200 distribution partners across the UK, Europe and America and is set to expand into Australia and New Zealand.