Kentico
Kentico CMS is a Web content management system that allows you to easily manage your web site content without technical knowledge.
If you need to add some text, image or product to your web site, you can do that through a browser-based user interface without calling the web designer. Kentico CMS goes beyond content management and offers many additional modules that allow you to create on-line forms, send e-mail newsletters, sell products on-line, build customer communities and many others.
Kentico CMS brings a unique combination of robust functionality, easy-to-use interface and flexibility for both end users and web designers. Kentico CMS is used by 4,000+ web sites and delivered through a network of 700 partners in 83 countries, which means a safe investment for you. Kentico CMS comes with excellent technical support and a 7-day bug-fixing policy.
Distinction have been Solution Partners since 2006, and Gold Partners since July 2009 when this tier was introduced.
Simply put, you can rely on Kentico CMS.
http://www.kentico.com