Katie Arnold is the founder of Club Peppermint, an 80s-inspired British fashion brand, and one of the UK’s leading young founders on LinkedIn, with an audience of 136K+.
Katie has been building businesses since her teens. At 18, in lockdown and with £100 in the bank, she started a reusable cup brand that took 60,000 orders and six figures in its first year.
She chose business over university, spent two years building Club Peppermint and launched it in April 2026: heavyweight unisex basics, knitwear and outerwear, made in Portugal and named after her parents’ interior design business. Within months, it was named on FEBE’s 2026 Watch List of up-and-coming founder-led businesses.
She grew her LinkedIn from 100 followers to 80,000 in her first year by building in public: the wins, the mistakes and the numbers. Founders, CEOs and business owners follow her for honest lessons on launching and growing a brand, and partners including Claude, Xero, Lovable and Cursor have worked with her to reach them.
A young founder proving that business is more accessible than it looks.
