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Tumblr

What
Behind the biggest conceptual change in the evolution of blogging. The easy way to blog: post text, photos, quotes, links, music, and videos from your browser, phone, desktop, email or wherever you happen to be, and customize everything.

Disrupting
Traditional media and advertising markets.

Tumblr
Source: Tumblr

Headquarters: New York, NY
CEO: David Karp
Year Founded: 2007
Number of Employees: 174
Funding: $125 million
Key Investors: Sequoia Capital, Greylock Partners, Union Square Ventures, Spark Capital and Insight Venture Partners

Vital Stats

  • Ranks 40th among most-visited U.S. websites, right behind Netflix (Comscore)
  • 80 million unique visits a month/222 million globally (Quantcast)
  • 106.7 million blogs
  • 50 billion posts
  • 71 million daily posts
  • Average deal size for Tumblr advertising is six figures
  • Clients include GE, AT&T, Pepsi
  • The 10 top film studios are now advertising on Tumblr
  • Mobile growth rate 4 times over past six months


On Disruption

"Disruption is democratizing what was once wholly owned by influencers at big institutions." -David Karp, CEO and Founder

Technology

Latest Special Reports

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  • A look at 50 private companies set to reshape the business landscape.

  • Whether you're young and just getting started investing or moving closer to retirement, factoring in age will keep you ahead of the game.