More than half of Google’s revenue (57%) now comes from outside the United States. Apple has a similar split, with 60% of its 2014 fourth-quarter revenue accounted for by international markets. Why is it that some companies experience tremendous success abroad, while others struggle to go global? In my work as a global business advisor to Fortune 500 companies and high-tech start-ups, I’ve observed seven traits that distinguish companies with accelerated global growth.