Book Salon, a payment and booking service provider specializing in hair, beauty, and wellness companies, is launching operations in the UK. The Finnish startup has raised £3,7 million from private investors to date, including Big Bets VC and promonent angel investors such as Lennu Keinänen. Book Salon provides entrepreneurs with a full suite of modern tools to run a successful business. Book Salon offers payment terminals and a payment processing service, in addition to its website builder, online booking systems, and cash and accounting reports.