Craigslist’s new ad network will open in New England, a spokesman for the company said Thursday.

The New York City-based company said in a statement that it will work with Craigslist to expand its advertising platform, which will include “ad platforms in several cities across the country.”

Craigslist also said it will expand its network in San Francisco, San Diego, and Chicago.

The company is currently the third largest online ad marketplace in the U.S. with about 3 million ads, according to Ad Age.

The new office will be in the space currently occupied by the U-M Health Center in Manhattan.

Craigslist also will work to expand across other cities in the future, the company added.

The U.K.-based company has more than 3 million active users and more than 40 million listings, according the company.