A look inside the New York office of Yelp, a billion-dollar company that offers its 4,000 employees around the world some incredible perks

Hollis JohnsonHere's what it's like to work at Yelp's Manhattan location.A space that features foosball tables, karaoke machines, beer kegs, and free snacks sounds more like a rec room for adults than a workplace.

But those are just a few of the enviable perks Yelp offers its 900 New York-based employees.

Founded in 2004 and headquartered in San Francisco, Yelp is a nearly $3 billion company that allows consumers to locate and review businesses on its mobile app and website now. It now has seven offices around the US and Europe, including one in the heart of Manhattan that Business Insider visited.

We went inside the Madison Avenue office to get a clearer picture of what the Yelp culture is really like. Here's what we saw and learned: