Codecademy is quickly becoming the class pet of the start-up community.

The New York City-based start-up--which provides online classes for aspiring computer programmers--closed a $10 million funding round from a slew of investors, company co-founder and CEO Zach Sims told Inc. on Monday.

With its second funding round finished, Codecademy's list of backers now includes some of the most recognizable names in venture capital, including Index Ventures, Kleiner Perkins Caufield & Byers, and entrepreneur-venture capitalists Richard Branson and Yuri Milner.

The company plans to use the new capital to expand its number of international students, Sims said. Currently, 50% of Codecademy users are from the U.S. and 10% are from the U.K.

Codecademy was founded in August 2011 and received $2.5 million in a funding round led by Union Square Ventures in November 2011.