5. Xamarin – CA, USA


Founder: Miguel de Icaza

Xamarin is a San Francisco, California-based software company, created in May 2011 by the engineers that created Mono, MonoTouch  and Mono for Android.These are cross-platform implementations of the  Common Language Infrastructure (CLI) and Common Language Specifications (often called Microsoft .NET).

At the core of Xamarin’s innovation is their aim to create a whole new experience for developers creating apps. From resources to ease of development and up to the improvement phase. The identification of Xamarin’s deep focus on developer needs has established its 5th place winning position in the competition.

With a C# shared codebase, developers can use Xamarin tools to write native iOS, Android, and Windows apps with native user interfaces and share code across multiple platforms.  Xamarin has over 1 million developers in more than 120 countries around the world as of May 2016.

Xamarin created a variety of tools that ease the process of creating and changing mobile phone interfaces. These include: platform to build apps in C# for iOS, Android and Windows Phone. It also has a test cloud to ensure all applications work to expectations. Real-time monitoring capability also means developers can improve apps by monitoring crash and issue reportings and tracking user events as they happen. The system also stores detailed error reporting where developers can refine according to devices, specific app version etc. Additionally, it can be used to see how users interact with the app including which activities they undertake etc.

They also offer pre-built apps to make it easier for small companies or inexperienced developers create an app with unique features in no time.

The popularity of Xamarin is already backed by its large client portfolio including blue chip companies like: 3M, Kimberly-Clarck, ING, Honeywell, Kelloggs, Nielsen, Trello, GitHub and more.