Many people think of Box as a cloud company. But really, it's a collaboration company, says Vikrant Karnik, senior vice president of enterprise cloud consulting services for systems integrator Capgemini, a newly minted Box partner. Box has been a poster child for the cloud computing movement, along with companies such as DropBox, SalesForce.com, and Amazon Web Services. And it's been on a roll recently: This winter it secured a $100 million funding round to bring its total fundraising to more than $400 million. It's expanding globally and rumored to be looking toward an IPO.