Xamarin (company)

Xamarin (company)
Name	Xamarin
Type	Subsidiary
Industry	Software
Fate	Acquired by Microsoft
Founded	2011
Founders	Miguel de Icaza; Nat Friedman; Joseph Hill
Headquarters	Boston, Massachusetts
Products	Xamarin.Forms; Xamarin.iOS; Xamarin.Android; Xamarin.Mac
Parent	Microsoft

Xamarin (company) was a software company that developed cross-platform mobile development tools allowing developers to build native applications for Android, iOS, and Windows Phone using the C# programming language and the Mono runtime. Founded in 2011 by veterans of the GNOME and Mono projects, the company commercialized bindings and tooling integrating with Microsoft Visual Studio and popular IDEs to target multiple mobile platforms from shared codebases. Xamarin's tools influenced mobile development paradigms alongside competitors such as PhoneGap, Apache Cordova, and React Native.

History

Xamarin was founded in 2011 by Miguel de Icaza, Nat Friedman, and Joseph Hill following their work on Mono and involvement with Novell. The founders capitalized on the demand created by the proliferation of iPhone, Android, and BlackBerry ecosystems to provide a solution that leveraged C# and existing .NET skills. Early milestones included the release of native bindings for Objective-C APIs on iOS and Java APIs on Android, and partnerships with companies like HP (Hewlett-Packard), Amazon, and Xamarin Studio users. The company raised venture capital from firms including Ignition Partners, CRV, Charles River Ventures, and individual investors from the Silicon Valley and Boston, Massachusetts tech scenes.

Products and Services

Xamarin offered products such as Xamarin.iOS, Xamarin.Android, Xamarin.Mac, and Xamarin.Forms, enabling shared business logic across iOS, Android, and Windows applications. Xamarin Studio and integration with Microsoft Visual Studio provided designers and debuggers for native UI development, while cloud services like Xamarin Test Cloud (later integrated into App Center) offered device testing across physical devices from vendors such as Samsung and HTC. The company also provided commercial support, enterprise licensing, and training for corporate customers including Microsoft, IBM, and Cisco Systems.

Technology and Architecture

Xamarin's architecture centered on the Mono runtime and a set of language bindings that wrapped native Objective-C and Java APIs, exposing them to C# developers. Tools produced ahead-of-time (AOT) compilation on iOS—required by Apple Inc. policies—and just-in-time (JIT) where allowed on Android. Xamarin.Forms provided an abstraction layer for UI that mapped declarative controls to native widgets on iOS, Android, and Windows Phone. Interop with SQLite databases, integration with RESTful services, and support for OpenGL ES and XAML anchored Xamarin in both native and cross-platform paradigms alongside frameworks like Qt and MonoGame.

Corporate Structure and Funding

As a private company, Xamarin operated with headquarters in Boston, Massachusetts and research and development centers in locations including San Francisco, Spain, and India. The company raised multiple funding rounds from investors such as CRV, Ignition Partners, and strategic angel investors from the Microsoft ecosystem. Leadership included co-founders Miguel de Icaza and Nat Friedman, who previously held roles in projects related to GNOME and Novell. Xamarin's go-to-market strategy targeted enterprise customers and independent developers, offering a mix of commercial licenses and services.

Acquisition by Microsoft

In 2016 Xamarin was acquired by Microsoft in a deal that integrated Xamarin's tooling into the Visual Studio family and made key components available to the wider developer community. The acquisition followed broader industry consolidation and Microsoft's shifting strategy under CEO Satya Nadella to embrace cross-platform development and open source. Post-acquisition, Xamarin technologies were incorporated into Visual Studio for Mac, while elements such as the Mono runtime and Xamarin.Forms were contributed to GitHub and open-source ecosystems.

Community and Ecosystem

Xamarin fostered a developer community through events like Xamarin Evolve and local user groups, collaborating with organizations such as Microsoft, Stack Overflow, and OSS projects hosted on GitHub. Training resources, plugins, and third-party components were provided by firms including Telerik and Syncfusion, while community extensions and nuget packages broadened the ecosystem. Academic and enterprise adoption connected Xamarin to curricula at institutions like Massachusetts Institute of Technology and corporate partners including Samsung and Amazon.

Reception and Impact

Xamarin received praise for enabling native performance with shared codebases, being cited in comparisons with PhoneGap, React Native, and Adobe PhoneGap Build for tradeoffs between native access and development velocity. Critics highlighted licensing costs prior to the Microsoft acquisition and challenges around API parity with evolving iOS and Android SDKs. Long-term impact includes contributions to cross-platform tooling, influence on .NET Foundation initiatives, and integration into Visual Studio workflows that shaped enterprise mobile strategies across industries.

Category:Software companies Category:Microsoft acquisitions