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xamarin-horizontal-blue@2xXamarin, the San Francisco-based company that allows developers to code applications for a variety of different platforms using Microsoft’s C# programming language, announced today that it has raised a $54 million Series C round of financing. The round was led by a number of firms, including Ignition Partners, Lead Edge Capital, Insight Venture Partners, Floodgate and Charles River Ventures.

It’s the biggest round that Xamarin has ever raised – the company raised $12 million in a Series A, and $16 million in a Series B – and the company said it’s the biggest raise ever for a mobile application platform company. The influx of cash is meant to help fuel the company’s growth as it pushes towards capturing more and more of the mobile market.

Nat Friedman
Nat Friedman

The company is seeing triple-digit year-over-year revenue growth and is looking to accelerate its operations and expand its presence in the market. Xamarin plans to open an office in London this fall, increase its sales force and expand its marketing campaigns, with a focus on Europe. In addition, Xamarin CEO Nat Friedman told GeekWire in an interview that there may be acquisitions on the horizon.

“We may do a couple smaller acquisitions to help us solve problems for mobile developers,” he said.

2014 has been a big year for the company. Xamarin’s capabilities took center stage during a number of announcements at Microsoft’s Build developer conference in San Francisco earlier this year. As the Redmond-based software giant takes a stance that’s more inclusive of other platforms it doesn’t control, Xamarin’s products will help C# developers follow that lead. According to Friedman, cross-platform development capability will be key to Microsoft’s continued success.

“If they want to own the hearts and minds of all developers, they have to get to all devices,” he said.

The company already has a number of high-profile users among its more than 700,000 customers, including Rdio, GitHub, NBC Universal and Dow Jones. By using Xamarin, those companies and others can use one code base to build for a variety of platforms including the iPhone, Android Wear smartwatches and Amazon’s new Fire phone.

Earlier this year, the company launched version 3 of its development tools, with a number of new features for developers including the ability to design iPhone apps inside Xamarin’s software, without needing to interact with Apple’s Xcode development environment.


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