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Support & Upgrade Policy


All purchased licenses of SigmaXL and DiscoverSim come with one year of free support and upgrades. 


Customers can choose to renew their maintenance agreement with us prior to the expiry of their one year of free maintenance.  The cost to renew the maintenance program is only 20% of the original purchase price.  For users who have purchased one license of SigmaXL at our regular price, the cost to renew the maintenance agreement would only be $59.80.  For DiscoverSim, the cost would be $199.00.


For more information on our maintenance program, or to renew your maintenance, please contact

Define, Measure, Analyze, Improve, Control

Lean Six Sigma Software Excel Add-in

Simulate, Optimize,

Lean Six Sigma Software Excel Add-in

Web Demos

Our CTO and Co-Founder, John Noguera, regularly hosts free Web Demos featuring SigmaXL and DiscoverSim
Click here to view some now!

Contact Us

Ph: 1.888.SigmaXL (744.6295)