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Upgrade Information

To be eligible for a free upgrade to the latest release you must be a current member of our maintenance program or have purchased your original license of SigmaXL after

Please read our support/upgrade policy.  

Users who are not eligible for a free upgrade and wish to purchase the current version are eligible for a special Upgrade Discount.  This discount reduces the cost to only $149.50 for a single license upgrade (50% off our regular listed prices).

For more information, please email us using  To expedite the process be sure to include your previous serial number.

All purchased upgrades include a one year complimentary subscription to our maintenance program.

For more information about the current versions, click here.


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

Phone: 1.888.SigmaXL (744.6295)