Supply chain operations

10 six sigma consultants

These ten six sigma consultants run Lean Six Sigma and process improvement work for client organizations, and most of them list Black Belt or Master Black Belt credentials. A reader can learn how a consultant scopes a DMAIC or lean project, picks the metrics that matter and keeps the gains in place after the engagement ends.

10 professionals10 companiesData retrieved September 29, 2026

Professionals to explore

01—10
  1. Alexandre Dias

    LinkedIn

    Experience: Quality Management & LEAN Six Sigma Consultant Founder AD Six Sigma Consulting Florida, USA · AD Six Sigma Consulting

    Founder of AD Six Sigma Consulting, where the profile lists the title Quality Management & LEAN Six Sigma Consultant Founder AD Six Sigma Consulting Florida, USA since 2020. Former Project Implementation Leader & Six Sigma Black Belt Coordinator at Ford Motor Company (2018–2021). The profile describes him as a quality and process engineer and Lean Six Sigma Black Belt who leads cross-functional teams to eliminate defects, compress lead times and use data for better decisions.

  2. Allen Hartsoe

    LinkedIn

    Experience: Senior Lean Six Sigma Consultant · C.I. Solutions

    Senior Lean Six Sigma Consultant at C.I. Solutions since 2012. Former Senior Lean Six Sigma Consultant at Incito Consulting Group (2011–2012), Lean Six Sigma Consultant at South Carolina Manufacturing Extension Partnership (2005–2010) and Six Sigma Black Belt at RRD (1980–2004). The profile describes process improvement services for companies in wood composites, construction, molding, forging, automotive, precision machining, warehousing logistics, printing, food and chemical industries.

  3. Deepa Thakkar

    LinkedIn

    Experience: Lean Six Sigma Consultant · Self-Employed

    Self-employed Lean Six Sigma Consultant since 2016. Former Director of Performance Excellence at Dignity Health (2010–2016), Lean Leader at Isola Group (2007–2010) and Industrial Engineer at Northrop Grumman (2006–2007). The profile describes her as a Lean Six Sigma Master Black Belt who has driven process improvements in higher education, construction, manufacturing and healthcare.

  4. Eduardo Costa

    LinkedIn

    Experience: Managing Director Master Black Belt Lean Master · SIXSIS – Lean Six Sigma Solutions

    Managing Director Master Black Belt Lean Master at SIXSIS – Lean Six Sigma Solutions since 2005, and R&G Managing Partner Portugal at R&G Global Consultants Iberia since 2024. Former Business Manager Six Sigma Black Belt Sourcing Manager at GE (1993–2002). The profile describes him as a GE-certified Master Black Belt who helps industrial and service companies unlock capacity and profitability and has led Lean Six Sigma transformations in more than 20 countries.

  5. Holly Blair

    LinkedIn

    Experience: Founder & Principal Consultant Lean Six Sigma Master Black Belt · Lean Possibilities

    Founder & Principal Consultant Lean Six Sigma Master Black Belt at Lean Possibilities since 2018, and author of Lean Transformation for Small & Mid-Size Manufacturers since 2025. The profile says she partners with small-to-mid-size Canadian manufacturing companies to reduce operating costs, improve quality, increase throughput and build lean systems and processes.

  6. Kevin Ollivier

    LinkedIn

    Experience: Principal consultant and Lean Six Sigma trainer, coach and mentor · Spire View Business Solutions

    Principal consultant and Lean Six Sigma trainer, coach and mentor at Spire View Business Solutions since 2014, and Accredited partner and trainer at the International Lean Six Sigma Institute (ILSSI) since 2024. Former Principal Consultant and Lean Six Sigma Master Black Belt at Paloma consulting (2001–2013). The profile says he has trained more than 3,000 and coached more than 1,000 professionals.

  7. Marshall Nauck

    LinkedIn

    Experience: Master Trainer, Master Black Belt · SixSigma.us

    Master Trainer, Master Black Belt at SixSigma.us since 2014, and Owner, Principal Consultant, Trainer and Program Manager at MHNauck Consulting, LLC since 2014. He has also been Executive Education Instructor - Process Improvement and Six Sigma at the University of South Carolina since 2014. The profile describes him as a consultant and Design/Lean/Six Sigma Master Black Belt with senior leadership experience in Fortune 500 companies.

  8. Richard Devore

    LinkedIn

    Experience: Principal Consultant, Lean Six Sigma Operational Excellence Process Engineering · RETY LLC

    Principal Consultant, Lean Six Sigma Operational Excellence Process Engineering at RETY LLC, a title the profile lists from 2009 with no end date. Former Business Process Continuous Improvement Manger at Collins Aerospace (2022–2025) and Operational Excellence Manager at Dart Container (2020–2022). The profile lists ASQ Six Sigma Black Belt and Lean Six Sigma Master Black Belt certifications and says he develops and runs operational improvement programs, including training.

  9. Tim Gillette

    LinkedIn

    Experience: Consultant Owner · Strategic Lean Six Sigma

    Consultant Owner at Strategic Lean Six Sigma since 2011; the profile also lists Lean Six Sigma Master Black Belt there (2012–2016) and Senior Lean Consultant at Campbell Corporation of Wisconsin (2019–2020). It describes him as a Lean Six Sigma Master Black Belt who applies continuous improvement programs to companies and specializes in starting up CI programs.

  10. Tony Czarnecki

    LinkedIn

    Experience: Continuous Improvement Consultant, LSS MBB · E&T Consulting

    Former Continuous Improvement Consultant, LSS MBB at E&T Consulting (2009–2020), where he has been Principal Owner since 2009. He was also Senior Consultant Manager at Accenture National Security Services/George Group (2007–2009) and Contract LSS Consultant at Czarnecki Consulting (2003–2007). The profile describes him as a Lean Six Sigma Master Black Belt working with clients in manufacturing, government, food processing, utilities and telecommunications.

Choose the right perspective

Match the consultant's industry background, such as manufacturing, healthcare or transactional services, to the processes you want to improve. Decide whether you need hands-on project delivery, belt training for your own staff or help starting a full program, and ask how they have handled that kind of work.

Questions to take into the conversation

  1. 01How do you choose the first Lean Six Sigma projects so that they show results without overloading the team?
  2. 02What does a good project charter and baseline measurement look like before improvement work starts?
  3. 03How do you keep process gains from slipping once the consultant and project team move on?

About this directory

This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.

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