Mike McGearty didn’t talk to anyone until he needed to. For the first two years of Meili, there was nothing to say. He and Bobby Healy, longtime friends and longer-time colleagues, were quietly building a travel tech company targeting the same market, the same clients, the same business as Cartrawler, the Irish business they had grown into the largest car-hire platform in the world. When McGearty, Cartrawler’s chief executive, and Healy, chief technology officer, left the car-rental company in 2018, six months apart, it was in good shape as one of Ireland’s first unicorns and one of the most successful…