Box said Thursday that its massive new round of funding — $100 million from an international cast of “strategic” investors including Itochu Technology Ventures, Macnica,  Mitsui USA, Telefónica Digital, and Telstra — will speed up its already-planned global expansion.

The company has now raised about $250 million, and is clearly in a hurry to grab market share as rival Dropbox is attacking the same file-sync-store-and share market, although starting from its consumer base whereas Box started out and remained focused on business users. The new funding values Box, based in Los Gatos, Calif., at about $2 billion, according to the Wall Street Journal.  Box snagged $125 million in a Series E round  in July 2012.

We’re now safely in the stratosphere for valuations on such companies. In November Bloomberg Business news had Dropbox going for an eye-popping $8 billion valuation.

Pretty heady stuff. But this is also…