Former Booking.com CEO puts €4 million into Munich-based travel tech startup Holidu

Holidu, a Munich-based travel tech company, today announced a €5 million extension to its €40 million Series C round from last year. Notably, €4 million of that extension comes the personal fund of former Booking.com CEO and Uber advisor Kees Koolen, who frequently invests in this space and has been on the startup’s board since(…)