Access Group, a British software company, completed the acquisition of Guestline, a mission critical software provider, from Riverside, a global investment firm. Financial terms were not disclosed. “The sale of Guestline marks the sixth exit achieved by the Riverside Europe team over the past 18 months, and again demonstrates our ability to support leading mid-market businesses through organic and inorganic growth initiatives. Despite the challenges of Brexit and Covid-19, Guestline’s revenue and earnings more than doubled during our investment period,” Karsten Langer, Riverside Managing Partner.