Bill Smith 1929 to 1993. He was the Vice President and Senior quality assurance manager for land mobile products sector Motorola, when he introduced Six Sigma as a measure of quality in 1986. At that time, he was handling an increasing number of complaints from the Field Sales Force regarding warranty claims Motorola's product line was a complex one and operating near three sigma level. At that level, it was producing too many defects. Mr. Smith data mind that quality levels beyond three sigma were necessary. Michael Harry 1951 to 2017 he founded the Six Sigma Academy with Richard Schroeder in 1994.

As a consulting firm specializing in the Six Sigma methodology, Michael has He has called Bill Smith, the father of six sigma and gave himself the title the godfather of six sigma. Many industry people have called Michael Harry, the main architect of the Six Sigma movement, as he has been the most widely known driver in the industry.