About GeoTol Inc.

GeoTol Inc is a training and consulting company specializing in geometric dimensioning and tolerancing (GD&T) certification. The company was started in 1983 under the former name Technical Consultants Inc.  The company was rebranded as GeoTol and moved to Golden Colorado in 2021. GeoTol’s expert team of professional trainers travel and teach virtually to both large and small companies to improve their knowledge and use of the ASME Y14.5 and ISO-GPS product definition standards.

GeoTol Material Authors

Scott Neumann is President of GeoTol. He graduated from The University of Florida with a bachelor’s degree in Mechanical Engineering. He specializes in geometric tolerancing product definition, tolerance stack-up analysis, measurement data and inspection techniques. Scott has presented hundreds of geometric tolerancing training programs to engineering, manufacturing, and quality personnel at major corporations in the US and worldwide since 2007. He has also practiced consulting and mentoring to improve product documentation and inspection methods on a variety of products. The industries include aerospace, defense, automotive, medical, industrial, and consumer products. He has coauthored three textbooks and video programs on the subject: GeoTol Pro 2020 to ASME Y14.5-2018, GeoTol Pro to Y14.5-2009, and GeoTol Applications and Tolerance Stacks. Scott is 2009 Senior Level GDTP certified to ASME GD&T certification Y14.5.2 and is an active member of the following committees related to GD&T:

  • ASME Y14.5 Dimensioning and Tolerancing
  • ASME Y14.5.1 Mathematical Definitions of Dimensioning and Tolerancing
  • ASME Y14.5.2 Certification of Dimensioning and Tolerancing
  • ASME Y14.45 Measurement Data Reporting
  • AED Assembly Level Tolerancing
  • Y14 US TAG Support Group in the ISO-GPS and ISO-TPD committees

Al Neumann (retired founder) was devoted to education and training in geometric tolerancing and product definition for over 40 years. Al Neumann is a graduate of Central Michigan University. He has worked in a variety of engineering and manufacturing firms related to automotive, aircraft, medical, and the defense industry. Al Neumann is a recognized international expert in geometric dimensioning and tolerancing and has written five books and produced four video training programs on the subject. Mr. Neumann has presented hundreds of training programs to people throughout the US and worldwide over 35 years. He served as a member on the ASME Y14.5, Dimensioning and Tolerancing committee for 35 years. He was section sponsor on the Datum Reference Frame section for the ASME Y14.5-2009 standard, and vice chairman for ASME Y14.5-2018. He was a member on the ASME Y14.5.1, Mathematical Definitions of Dimensioning and Tolerancing for 25 years. He also served as chairman on the US TAG to ISO TC213 on Dimensioning and Tolerancing.

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