San Francisco – Xamarin, a San Francisco-based developer of mobile app development software that helps users creative native iOS, Android and Windows apps, said on Tuesday it has raised $12 million in its first round of funding.

Charles River Ventures, Ignition Partners and Floodgate participated in the round, which the company will use expand its slate of mobile developer tools, as well as build a sales and marketing team.

Founded less than a year ago by veteran software entrepreneurs Nat Friedman and Miguel de Icaza, Xamarin has now been used by more than 150,000 developers and has more than 7,500 paying customers.

“We’ve had a tremendous first year, validated by more than 12,000 new developers per month, and millions of dollars in revenue,” said Friedman, the company’s CEO. “This funding will enable us to scale our success and better deliver on our mission, bringing millions more developers to mobile.”

This article was also published in Bay Area Tech Wire.

Related links:

Xamarin –

Xamarin – press release

Xamarin blog – Xamarin raises $12M to help you make better apps faster