iSixSigma - Six Sigma Quality Resources
    iSixSigma is the world's leading publisher and content provider for the Six Sigma community. Since 2000, iSixSigma has provided the most comprehensive and essential resources available anywhere to businesses at every stage of their Six Sigma maturity and professionals at every skill level. Hundreds of thousands of monthly readers learn new skills, advance their careers and contribute to the success of their organizations through a wide range of articles, tools, conferences and practitioner forums, as well as through publications, such as iSixSigma Magazine.

    Minitab - Quality Software
    For more than 30 years, Minitab has delivered software and services for quality improvement, education, and research. Thousands of distinguished companies in more than 80 countries around the world have used Minitab products for their quality improvement and Six Sigma ™ projects. As the leading package for statistics education, more than 4,000 colleges and universities also use Minitab products.

    SigmaXL - Simply Smart Software
    Sigma XL is a statistical software solution that is trusted by leading consultants and multi-national companies. As an add-in to the already familiar Excel, SigmaXL simplifies data analysis and reduces the learning curve for users. SigmaXL is a fraction of the cost of any major statistical product, yet it has all the functionality most professionals need.