Top 7 Founders of the Year

No. 3: David Karp


Founded: Tumblr, 2007

Back in 2006, David Karp was running his own software consulting company and wasn’t necessarily focused on expanding his services. However, he had quite the interest in short-form blogs, also referred to as tumbleblogs, and after waiting in vain for a reputed blogging platform to start offering this product, he decided to take matter into his own hands. After launching Tumblr in February 2007, the platform gained over 75,000 users in just 2 short weeks.