Office Space: Tumblr

By Mark Milian - 2012-09-26T01:38:16Z

Photograph by Elizabeth Lippman/Bloomberg

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Puppy Love

The office is dog friendly and even stocks treats to ensure its canines are eating healthily. David Karp, Tumblr's 26-year-old founder and chief executive officer, has a mutt named Clark, a French-English bulldog mix.