EQT Ventures was set up in Stockholm and has offices in London, Berlin and Amsterdam, and its recent investments include Natural Cycles, a fertility app, and Varjo, a Finnish virtual reality company.
Ms Bertram is joining as “executive in residence”, tasked with advising companies on growing from small start-ups to sustainable businesses.
She said her departure from Uber had not been related to the high-profile problems the company has faced over the last year, nor the threat of it being forced out of London.
“Obviously it wasn’t the easiest possible timing, but once we [Uber] knew about it it was going to be better to do it sooner,” she said, adding that she had been discussing the move for much of the last year. “Four years is a pretty long time in tech.”
Uber has since made London boss Tom Elvidge its UK chief on an interim basis.