UltraEdit
UltraEdit (formerly IDM) has been publishing software since 1994. Their award winning software is highly regarded for its programming excellence and their UltraEdit text editor product is recognized around the world as one of the best products of its class. UltraEdit products have nearly two million registered users in most countries, and are localized in eight different languages. Numerous Federal, State, and Local governments/agencies, Fortune 100/500/1000 companies, and hundreds of thousands of private users use UltraEdit products worldwide.
Actipro Software
Actipro Software, founded in 1999, is a privately-held provider of software components for the Microsoft .NET platform. Based in Cleveland, OH, USA, their focus is on delivering quality user interface software components that customers can trust to add robust functionality to their applications. They have been developing Windows Forms components since .NET was first released, and have become a leading provider of Windows Presentation Foundation (WPF) components.
Xamarin
Xamarin was founded in May of 2011 in Boston, Massachusetts. Their mission is to produce the best software development tools in the world, and to make it fast, easy and fun to build great mobile applications. Xamarin is composed of more than 20 members of the team that built Mono, with ten years of experience working together to create a great developer platform.