Zipcar is an American car-sharing company and a subsidiary of Avis Budget Group. Zipcar provides automobile reservations to its members, billable by the hour or day; members pay a monthly or annual membership fee in addition to car reservations charges. Zipcar was founded in 2000 by Antje Danielson and Robin Chase. On March 14, 2013, Avis Budget Group purchased Zipcar for approximately US$500 million in cash; Zipcar operates as a subsidiary of Avis Budget Group. Scott Griffith, who had run the company for the previous 10 years, resigned the day after the acquisition closed and passed the reins to a new company president, Mark Norman. In early 2014, Kaye Ceille took over as Zipcars North American President. In the summer of 2016, Kaye Ceille became a managing director of Avis Budget Group International. As of September 2016, Zipcar has announced that they have 1 million members across the 500 cities and 9 countries they serve, and offers nearly 10,000 vehicles throughout the United States, Austria, Belgium, Canada, France, Germany, Spain, Turkey, and the United Kingdom, making Zipcar one of the worlds leading car rental networks.