PHILADELPHIA, PA – Less than a month after expanding its car-sharing service to Baltimore, Flexcar has started adding vehicles in Philadelphia. The company, majority owned by AOL co-founder Steve Case’s Revolution Living, said its initial Philadelphia fleet includes 30 low-emission vehicles primarily parked in downtown garages. Flexcar expects to expand its Philadelphia fleet to 100 cars by the end of the year.

Philadelphia has become the company’s 11th market and its third East Coast addition this year. Besides going into Baltimore late last month under a deal to put cars on the campus at Johns Hopkins University, Flexcar struck a similar deal with the University of Florida in Gainesville earlier this year. Those university partnerships also required Flexcar to lower its minimum rental age to 18. It has cars parked at the University of Maryland, as well.

Rival Zipcar has deals with George Mason, George Washington, Georgetown, and Howard universities.

Flexcar has reported double-digit growth in membership and revenue in the last year and plans further East Coast expansion. Washington is Flexcar’s second-largest market, behind its hometown market Seattle.