Accel: Klarna alumni have founded 62 new startups, more than any $1B+ European fintech startup; Revolut alumni founded 49, and Wise and N26 alumni had 33 each (Ryan Browne/CNBC)

Ryan Browne / CNBC: Accel: Klarna alumni have founded 62 new startups, more than any $1B+ European fintech startup; Revolut alumni founded 49, and Wise and N26 alumni had 33 each  —  LONDON — More startups are being spun out of Swedish digital payme