Spire was formed from the sale of BUPA Hospitals to private equity company Cinven in 2007. Since then, it has periodically added further hospitals and clinics, including 10 Classic hospitals in 2008 and, most recently, the acquisition of St Anthony’s hospital in Greater London in May 2014. Since its inception, the Group has made significant capital investments in its estate, and continues to deliver excellent care with leading clinical outcomes and high levels of patient satisfaction. 

As of March 2019, the Group employed over 11,700 (including bank workers) employees nationwide and has more than 7,700 experienced, self-employed consultant surgeons and other clinical specialists . In 2019, the Group generated revenue of £937.1 million, and EBITDAR of £119.4 million.