Zipcar Inc. of Cambridge is expanding its European car-sharing network with the acquisition of Austria’s Denzel Mobility CarSharing GmbH, which operates under the name CarSharing.at.

The deal adds another 200 vehicles and 10,000 members to Zipcar’s growing European market. Last year, the company bought the majority stake in Catalunya Carsharing SA, a Spanish car-sharing network known as Avancar. Zipcar did not disclose the financial terms of the deal to purchase CarSharing.at.

“It’s not a big company, but this is another step in building a network across Europe, much like we did in the US,” said Scott Griffith, Zipcar’s chief executive.

Griffith said that a more aggressive marketing and advertising campaign in Europe will follow the deal. The company also has a fleet of vehicles in the United Kingdom. He said Zipcar is looking at possibilities for expanding to Asia in the next few years.

Griffith said the purchase of CarSharing.at is not expected to affect the company’s quarterly financial results. Zipcar, which went public last year and closed Tuesday at $11.40 a share, rents some 9,000 vehicles on an hourly basis to about 700,000 members.