Business travel booking and support platform TripActions opened an office in each London and Amsterdam, the latter to serve as regional headquarters. The locations are the company's first outside the U.S. The $51 million in financing TripActions scored this year is financing the expansion. In the next 18 months, the company will increase its headcount from 250 to over 800, most of them in customer support. It also will open offices in the Asia/Pacific region this year, part of the firm's goal to scale its 24/7 customer support infrastructure as it supports bigger clients, a spokesperson told BTN. In the U.S., TripActions is headquartered in Palo Alto, Calif., has offices in San Francisco and Dallas and plans to open another in New York City this year.