Developer tools company Xamarin secured US$12 million in Series A funding, which it plans to use to accelerate the adoption of its technology. The investment from Charles River Ventures, Ignition Partners and Floodgate will fund an expansion of the company’s product roadmap and be used to build a sales and marketing team.

Xamarin already has more than 7,500 paying customers and 150,000 developers using its app development software to build native apps for Android, iOS and Windows Phone.

The company was founded less than a year ago by software entrepreneurs Nat Friedman and Miguel de Icaza. “This funding will enable us to scale our success and better deliver on our mission, bringing millions more developers to mobile,” said Friedman, the company’s CEO.

The Xamarin platform gives users access to all native APIs and UI toolkits and allows them to share up to 90 percent of source code across mobile OSs. It also allows developers to build apps with the widely-used C# programming language, meaning they can tap into existing skills.

“The company’s fast, organic growth means its team has hit on a winning formula, and Ignition is happy to further fuel Xamarin’s fire,” Ignition Partners’ John Connors noted.