PostSharp Technologies
PostSharp Technologies build tools that enable developers to add new code functionality, simplify architecture and reduce code duplication and application complexity. Over 50,000 developers worldwide rely on PostSharp to create cleaner code every day. Customers include Fortune 500 companies including US Airways, Siemens and Bank of America, as well as educational institutions, government organizations worldwide, start-ups and non-profits.
SubMain
SubMain is a privately held company founded in 2002. It provides innovative and original software quality tools for .NET developers.
MadCap Software
Founded in early 2005, MadCap Software serves as a trusted provider of single-source, multi-channel authoring and publishing solutions for thousands of companies worldwide.
MESCIUS (formerly GrapeCity)
MESCIUS (formerly GrapeCity) is an award-winning Microsoft Gold Certified Partner and one of the world's largest providers of developer components. The company retains 400 employees and hundreds of thousands of customers worldwide. For over 40 years, MESCIUS inc. has provided enterprises around the world with state-of-the-art developer tools and components, software services, and solutions.