Investment firm Prime Ventures led a €40m Series C round in Holidu, one of the fastest growing travel companies worldwide. The new funding will be used to further drive product development, both of the Holidu website and the Bookiply software. In addition, the company will grow its inventory by increasing the portfolio of connected Holidu partners and rapidly ramping up the number of vacation rental owners working with Bookiply. To achieve this, the company also plans to open multiple regional offices.