Wondering How to Make a Startup? Follow the 12 Biggest in the Business by InsiderMonkey.comAugust 22, 2013April 15, 202001160 No. 2: Dropbox Funding date: 10/18/2011 Funding round: $250 million Valued at: $4 million Investors: Goldman Sachs, Index Ventures, Greylock Partners, Institutional Venture Partners 1 2 3 4 5 6 7 8 9 10 11 12 13