About us

PQ Systems is a privately-held company headquartered in Dayton, OH, with wholly-owned subsidiaries in the United Kingdom and Australia.

For over 30 years, the company has provided quality control software and training to help people in manufacturing, healthcare, government, and service organizations demonstrate proof of their quality performance.

Our original software product, SQCpack statistical process control software, was developed by Sean T. Cleary, Ph.D., now a professor of mathematics at CCNY, in 1982 when he was just a high school student. Since that time, SQCpack statistical process control software licenses have been installed in more than 60 countries, and the PQ Systems software suite has expanded to 14 unique products.

In addition to SPC software and other quality control solutions, PQ Systems offers a variety of training opportunities, including public seminars, on-site training, and web-based instruction.

Our quality control software solutions include statistical process control (SPC) software, gage management software, measurement systems analysis software, document control software, quality audit tracking software, and more.

Dayton Business Journal 2014 Best Places to Work Winner

Company quick facts

Founded in 1982

Leader in software to demonstrate proof of quality performance

Customers in more than 60 countries

Headquartered in Dayton, OH with regional offices in the UK and Australia

Distributors in Brazil, Costa Rica, England, India, Mexico, Singapore, and South Africa

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World-class customers

Our customers include Fortune 100 companies, highly-acclaimed organizations, and popular household names.

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Customer comments

Read what some of our customers have to say about our products and services.

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Case studies

Read stories about how companies and organizations have proven their quality with PQ Systems quality control software.

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Our network of partners enables PQ Systems to assist customers all around the world.

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