Travel management start-up TravelPerk announced it has raised $160 million in a funding round led by Greyhound Capital. : LONDON — Venture capitalists are pumping hundreds of millions of dollars into corporate travel start-ups in the belief that business trips will rebound in 2021. On Thursday, Barcelona-based TravelPerk announced it had raised $160 million in a new funding round. The investment comprised of both fresh equity and debt financing, and was led by Greyhound Capital. TravelPerk helps small and medium-sized enterprises book flights and manage their expenses through its online platform.