By Elissa Rose (Assistant Editor, Women 2.0)

What do Tumblr and Gilt Groupe have in common? How about Kickstarter and Foursquare? They are a few of 400 tech startups, many of which have been funded in New York City in the last two years. 31 health care companies, 37 finance startups, and 145 shopping and advertising startups are buttressing existing NYC industries. They’re sharing the space with 225 consumer internet, enterprise software, and media and entertainment startups.

There is a startup hub forming within blocks of venture capital investors in Midtown South, a neighborhood in Manhattan with a good restaurant scene, popular bars, and affordable rent. Most of these 400 startups can be found in this area, reaching south from Central Park to Broadway.

Caren Maio, co-founder of Nestio, is happy with her move, “We are starting Friday in the new space. We all kind of wanted to stay as close to Union Square as possible — the Silicon Alley type of area. Being all start-ups, we didn’t want to commit to a five- or seven-year lease.”

Katia Beauchamp, co-founder of Birchbox, says of the small community that is forming “You’re running into entrepreneurs at the gym, at lunch. ‘Oh, I recognize your picture from Twitter’ — that happened to me last weekend.”

» For more information and to see a helpful infographic, check out The New York Times.
Editor’s note: Got a question for our guest blogger? Leave a message in the comments below.
About the guest blogger: Elissa Rose is Assistant Editor of Women 2.0. She co-founded Quillpill in 2008, a mobile story-writing platform that was written up in TechCrunch, Communication Arts and The New Yorker. She has worked as a content creator for virtual worlds, and as an Art Director for mobile gaming. She is the mother of an inquisitive six-year-old boy and lives in Oakland, CA. Elissa studied Philosophy and Physics at the University of Alabama. Follow her on Twitter at @elissarose.