Exclusive: Teams rival Starleaf plots London float as demand surges Star Leaf counts the NHS among its biggest clients (Image: Star Leaf) British video call and messaging firm Starleaf is plotting an initial public offering in London after demand for its services surged during the pandemic, City A.M. can reveal. Watford-based Starleaf, whose platform is used by major corporate clients including the NHS, booked a record year of trading in 2020 amid the shift to home working. Chief executive Mark Richer told City A.M. the company was now eyeing a London stock market debut in ...