“At Secret Clubhouse, a communal working space near Bedford Avenue in Williamsburg, the co-founders of the digital marketing company Small Girls PR never have to worry about paying the electric bill. They did not have to buy the long white desks they share with other young entrepreneurs. If they want coffee, the machine downstairs is always stocked. And there is always someone else to talk to.

For the founders, Mallory Blair, 24, and Bianca Caampued, 28, working at Secret Clubhouse — one of several communal, or “co-working,” spaces that house the budding technology and new media community in north Brooklyn — has freed them to expand their business. But with four part-time employees and more on the way, they are starting to think about finding a space of their own.

“We want to stay in this area for sure,” said Ms. Blair, who like Ms. Caampued also lives in the neighborhood. “We could be anywhere, but we choose to be in Brooklyn because that’s where everything’s happening.””

North Brooklyn Start-Ups Find Office Space Is Scarce, New York Times