Henk Kerst was the co-founder of travel agency Montys Travel Service in Haarlem (the Netherlands) in 1987. In 1999 they launched the first real-time airline ticket booking website: www.vliegtarieven.nl.
After having endured all kinds of start-up problems, other related websites were launched, such as: www. Vliegtickets.nl and www.Vliegtickets.be.
Henk sold his shares in the company in 2012 and he now spends most of the year in southern Spain where he is active as an investor and real estate developer.