Apigee, a company focusing on API creation and management, has just opened its first office in the EU. The company’s London HQ will help it grow its already significant clientele in Europe.

Currently, Apigee’s EU clients include such heavyweights as Financial Times Group, Shazam, Telefónica, Thomson Reuters, and Vodafone. The new office will allow Apigee to strengthen those relationships while building a more robust list of customers and a stronger presence overall in Europe.

“Europe is our fastest-growing market, and we’re seeing strong interest across all industries, from leading-edge technology companies to traditional brick-and-mortar businesses,” said Apigee CEO Chet Kapoor in a statement today.

“APIs are the foundation of the app economy and can provide a powerful way for a business to quickly expand and reach new customers who use mobile devices.”

Apigee also has an office in Bangalore, India. The company is based in Palo Alto, Calif. Apigee was founded in June 2004 and has taken a total of $52.1 million in venture funding to date. Its fourth round in the amount of $14.1 million was closed in early 2010.

Its U.S.-based clients include AT&T, Netflix, eBay, Pearson, and Gilt Groupe.

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