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Belts and Certifications

Take yourself & Your Organization to the next Level 

Learn tools that will change the culture of your organization and give you an advantage over the competition.


Lean Six Sigma White Belt

A one-day class offering basic awareness training designed to provide the core concepts of Lean and Six Sigma with a focus on basic Lean practices and quality improvement tools. Students will be introduced to the DMAIC methodology ­– Define, Measure, Analyze, Improve and Control. 


Remote Lean White Belt

A special four-hour Lean workshop for training in Lean core concepts, basic practices and quality improvement tools. Ideal for employees working in areas where improvement activities and projects are taking place. 


Lean Six Sigma Green Belt +

12 classroom training days spread over four months, with individual coaching between classes. Participants complete a real-world, instructor-guided project as part of certification. Includes the introductory course to Lean Leadership, the Leading with Lean Short Course.


Lean Six Sigma Green Belt Online

A 100% online four-month, in-depth instructor-guided training that provides participants with an opportunity to lead a process improvement project with the potential of positively impacting their workplace. Includes the introductory course to Lean Leadership, the Leading with Lean Short Course live via Zoom. 


Lean Six Sigma Black Belt

An intensive three-month Lean Six Sigma training intended primarily for those who will lead process improvement efforts at an organizational level. Participants will work on a real-world process improvement project. 


Lean Six Sigma Black Belt +

A 20-day Lean Six Sigma Black Belt professional certification program. Participants will work on a real-world process improvement project. LSS Green Belt certification is not a prerequisite, as it is integrated into the four-week training. 


OULI's team of instructors and consultants are practicing experts in the field with extensive history in implementing process improvement efforts and coaching students.

Brian deFonteny 

deFonteny is the creator of Leading with Lean and other short courses offered by the OU Lean Institute. A certified Lean Six Sigma Black Belt once active in the oil and gas industry, deFonteny has more than a decade of experience as a Lean practitioner, coach and instructor. He holds a master’s degree in human relations and a bachelor’s in psychology. deFonteny is committed to optimizing organizational success by helping others Lead with Lean. He is the author of Leadership Reimagined and an adjunct professor with the University of Oklahoma.  

Joyce Hinton

Hinton is a certified Lean Six Sigma Black Belt and has served as an OULI Lean Six Sigma coach, instructor and consultant for many of the Institute’s major clients. She is the primary instructor for the Institute’s LSS White and Green Belt training workshops. She holds a bachelor's degree in business administration and has completed extensive training in Lean Six Sigma methodologies, as well as having extensive experience in both management and procurement. 

Teresa Tobias

Tobias is a certified Lean Six Sigma Master Black Belt trained by some of the original consultants in the industry (Sigma Sciences, Inc., p.k.a. Six Sigma Associates). She has worked with Six Sigma Academy, the first consulting organization created by the founder of Six Sigma, Dr. Mikel Harry. Tobias has extensive experience at the strategic level working with leadership. At the tactical level, she has coached and mentored clients' internal resources for hundreds of transformational projects. 

Larry Fisher

Fisher is the Center Process Manager for Continuous Improvement and Innovation (CI2), Air Force Sustainment Center, Tinker AFB. He coordinates continuous improvement mentoring and training for 35,000+ Airmen. As a Lean Six Sigma (LSS) Black Belt, he is an instructor and facilitates multi-organizational improvement events, mentors, and coaches those utilizing CI2 techniques and seeking LSS Green Belt/Black Belt certifications. Since 1985, Fisher has held positions in engineering, quality, contracting and process improvement organizations.