Since 1995, TEI has been applying 6 sigma strategy to its whole organization. This understanding penetrated to all structures of TEI and became a business culture. 6 sigma became one of the basic building structures of TEI aiming excellence and to be the best in all activities.

Being one of the companies having highest sigma ranking today in the sector, TEI is working passionately for the excellence today as in the past. If we look at the progress of 6 sigma from past to present, the details below explain in detail about our journey in excellence;

• Accomplished successful projects; above 2000
• Trained greenbelts; above 250
• Trained blackbelts; above 50
• 4 black and greenbelt trainers
• Increase in savings and decrease in cost of poor quality.
• Radical improvements in product quality
• Strong company objectives attained
• Trained and highly qualified blue-collar workers.