So I've decided to plunge head first (along with 2 other mates) into the creation of a software developing company. We're currently struggling with the percentages for initial equity split. Seemed like a good idea to reap inspiration from the top dogs around. In that spirit, I've spent the whole afternoon researching the initial and current equity percentage allocated to the founders of the following tech companies: Apple, Microsoft, Google, Facebook, Twitter and Digg. Notwithstanding the thorough comb of the tubes, only managed to get a decent picture for Apple. Sincerely hope some crafty researcher out there can help me fill in the blanks (ideally with source reference links). Here's the intel I've managed to unearth so far: Note: x%/y% refer to the initial and current equity respectively. The the age the founder had when the company was created is also presented. APPLE - 01/04/1976 Steve Jobs: 45%/? - (21 years) Steve Wozniak: 45%/0% - (25 years) Ronald Wayne: 10%/0% - (41 years) References: 1, 2, 3. MICROSOFT - 04/04/1975 Bill Gates: ?/? - (19 years) Paul Allen: ?/? - (22 years) References: 1. GOOGLE - 04/09/1998 Sergey Brin: ?/15% - (25 years) Larry Page: ?/15% - (25 years) References: 1, 2. FACEBOOK - 04/02/2004 Mark Zuckerberg: ?/24% - (19 years) Eduardo Saverin: ?/5% - (21 years) Dustin Moskovitz: ?/6% - (19 years) Chris Hughes: ?/1% - (20 years) References: 1. TWITTER - 15/07/2006 Jack Dorsey: ?/? - (29 years) Evan Williams: ?/? - (34 years) Biz Stone: ?/? - (32 years) References: N/A. DIGG Kevin Rose: ?/? - (26 years) References: N/A. Thanks in advance. Cheers!