Private equity firm Accel-KKR completed the investment in Duett, a provider of software-as-a-service solutions to professional accountants and their clients in Norway. Financial terms were not disclosed. "Duett’s consistent growth over the years has been a result of strong adoption of our solutions that drive increased productivity for our customers. Now with Accel-KKR’s clear focus and proven success in growing software companies, we are excited about the prospect of transforming our company in very strategic ways and scaling our solutions to serve an ever-growing base of customers, industries and geographies," Bjørnar Håkensmoen, Duett CEO.