SigmaZone specializes in software tools and training for Six Sigma, Design for Six Sigma, and Systems Engineering. We have trainers and consultants around the United States and internationally.
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Products and Services

Products and Services

Quantum XL

Finally, software for the Statistical, Six Sigma, or Quality user which fuses Design of Experiments, Statistical Analysis, and Monte Carlo simulation into one easy-to-use yet powerful application within Microsoft Excel.


A complete SPC solution integrated into Microsoft Excel. Create Control Charts, Histograms, Paretos, Summary Statistics, Scatter Plots, Gage Capability Analysis, FMEA, and much more.


DOE Pro XL is the ultimate Design of Experiments package. Multiple response capability is coupled with advanced analysis and optimization, all from within Microsoft Excel.


Reduce your software and system testing time by using High Throughput Testing (HTT). Pro-Test can generate the test cases that provide all pairwise combinations.

Six Sigma, DFSS, and Statistics Training Courses

Our Six Sigma and Design for Six Sigma (DFSS) courses can be taught at your facility or you can attend one of our public seminars.

Trainers and Consultants

Our world class trainers and consultants have taught Six Sigma, DFSS, and other courses to Fortune 500 companies in diverse fields.


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Interesting Reads

Introduction Recently, I had the opportunity to take my family on a Royal Caribbean® cruise for our summer vacation. We had cruised in the past with Disney®, which led to an inevitable comparison of the quality of the two cruise lines. While on the Royal Caribbean cruise, I realized that the dichotomy between Disney and… Read More

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I arrived at Boston’s Logan Airport 1 hour and 30 minutes late, due to mechanical problems in the “equipment” coming out of La Guardia. After the requisite bag drag to the rental car bus, I was deposited in front of the Hertz Gold board, ready for my car. For you less-than-frequent travelers, the Gold board… Read More

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Inputs to designed experiments can fall into two general broad categories: Quantitative and Categorical (Qualitative). Quantitative inputs have scale or a direction measurement such as temperature and pressure. Categorical variables do not have scale – examples include vendor, day of week, and color. It is important to note that while you can assign a number… Read More

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What Our Customers Think

SPC XL is an important component of our Six Sigma program and our first choice in statistical software when improving transactional processes. The combination of SPC XL’s statistical charts and output with Microsoft’s Excel program is a perfect match and you can not beat the price to value.

I have studied and applied several leading statistical software applications over the last 9 years. I have instructed statistics to hundreds of Black Belts. I always launch SPCXL first. It is the easiest statistical software to use, and has met 99 percent of my statistical needs. If ‘lean’ is about delivering the greatest customer value per dollar, SPCXL wins.

Free trial versions

Download free trial versions of our software. See how easy to use statistical software was always meant to be.

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