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.
stpsoft
stpsoft are specialists in requirements engineering for software and systems. They provide lightweight requirements tools with strong TFS integration, and offer process improvement consultancy based on agile methods and TFS. Their public sector customers are primarily in the US, Canada, UK and Australia, and include central and local government departments, health institutions and academic institutions. Their private sector customers range from Fortune 500 companies such as Honeywell, PNC, Accenture and L-3 Communications to independent software vendors.