Back to Mobile View
Subscribe to the CrunchBase Daily for the latest on Fundings, Acquisitions, and Startup Events

General Information



University of Chicago, School of Law, JD 1998
Stanford University, BA 1994

Current Companies

Founder & CEO
Advisory Board Member
Board of Directors
Chief Financial Officer
Board Members

Former Companies

Founder & Chairman
Director of Sales

Web Presences


David Sacks

David O. Sacks is the Founder and CEO of Yammer, Inc. Sacks was previously the COO of PayPal until its acquisition by eBay. Subsequently, he founded, a family tree building and networking website. He also produced and financed the hit movie Thank You For Smoking. David recently sold Yammer to Microsoft for $1.2 billion.

David holds a B.A. in Economics from Stanford University and a J.D. from the University of Chicago Law School.

Recent Milestones


Company Date Round Size Participants
Secret 3/2014Series A$8.6M18
Mode Analytics 10/2013Seed$550k1
Gyft 9/2013Series A$5M6
Quartzy 7/2013Series A$4M6
AdStage 6/2013Seed$100k2
Intercom 6/2013Series A$6M3
EasyPost 3/2013Seed15
GetFresh 2/2013Seed2
Houzz 1/2013Series C$35M6
15Five 1/2013Venture Round$1M9
Kloudless 2013Angel$1.5M6
ZenPayroll 12/2012Seed$6.1M22
GrabCAD 10/2012Series B$8.15M5
Mixpanel 5/2012Series A$10.3M4
Cherry 4/2012Series A$4.5M5
ResearchGate 2/2012Series B6
Pocket Change 11/2011Seed$1.4M8
Cherry 11/2011Angel$750k4
ShopSquad/Ownza 3/2011Angel$1.25M5
Circle Inc 1/2011Angel$1M14
Sofa Labs 9/2009Series A$1.2M11
Eventbrite 12/2008Series A$1.5M13
Scribd 6/2007Series A$3.71M6



TWiST #05 with David Sacks

Added: 12/22/09

The Web 2.0 Show: Episode 53 - Yammer / David Sacks

Added: 3/8/10


  1. SEC ( [edit]
  2. Mode Lands A $550K Seed Round Led By David Sacks To Bring Online Collaboration To Data Science ( [edit]
  3. Gyft raises Series A of $5m ( [edit]
  4. Quartzy Raises $4M In Series A Financing ( [edit]
  5. Cross-Network Ad Startup AdStage Acquires Semply, Raises An Additional $100K ( [edit]
  6. Customer Communication Startup Intercom Raises $6M Round Led By The Social+Capital Partnership ( [edit]
  7. Citation Needed [add]
  8. Backed By Yammer’s David Sacks, Fresh Launches A Site For Verified Consumer Gadget Reviews ( [edit]
  9. Home Remodeling Platform Houzz Raises $35M Series C Round Led By NEA And GGV Capital, Launches Paid Pro+ Accounts ( [edit]
  10. 15Five Wants Employees To Have A Voice, Raises $1M From Yammer’s David Sacks, 500 Startups, Ben Parr And More To Give It ( [edit]
  11. Citation Needed [add]
  12. ZenPayroll Launches Cloud-Based Payroll Service With $6.1M In Seed Funding From CEOs At Yammer, Box, Yelp And Dropbox ( [edit]
  13. GrabCAD Raises $8.15M From Charles River Ventures, Yammer Co-Founder & Others For Its ‘GitHub For Mechanical Engineers’ ( [edit]
  14. Mixpanel Raises $10M in Series A Financing ( [edit]
  15. Shasta Ventures, Founders Fund Put $4.5 Million In The Uber For Carwashes, Cherry ( [edit]
  16. Founders Fund Invests in ResearchGate, The Professional Network For Scientists ( [edit]
  17. Mobile Game Monetization Platform Lunch Money Raises $1M From Google Ventures; Rebrands As Pocket Change ( [edit]
  18. [edit]
  19. Social Shopping Startup ShopSquad Lands $1.25M In Funding From Heavy Hitters ( [edit]
  20. [edit]
  21. Raises $1.2 Million For Facebook-Powered Matchmaking Service ( [edit]
  22. Citation Needed [add]
  23. Citation Needed [add]
Edit This Page
Last Edited 4/16/14

Revision History RSS Picture


Share this page on Twitter or Facebook:
Or copy this code to embed a widget: customize »

TechCrunch Posts TechCrunch Logo Small Picture

Techmeme Posts Techmeme Logo Small Picture

External Links

CrunchBase API


Become a Sponsor
Terms of Service | Privacy Policy | Licensing Policy