Supply chain operations
10 lean consultants
These ten lean consultants help manufacturers and other organizations put lean methods and continuous improvement into practice. A reader can learn how a lean consultant finds waste in a process, chooses the right tools for a site, and builds improvements that last after the consultant leaves.
Professionals to explore
01—10David Dubinsky
LinkedInExperience: President (Lean Sensei, Operational Excellence, Transformation Expert, Consultant, Coach) · Op-Excellence
President (Lean Sensei, Operational Excellence, Transformation Expert, Consultant, Coach) at Op-Excellence since 2009. Former Lean Sensei Senior Consultant at Simpler/JWA Consulting (IBM Health) (2014–2016) and Vice President NA Industrial Practice at Kepner-Tregoe (2007–2009). The profile describes operations improvement and transformation consulting for Fortune 500 and mid-market companies, with services including lean manufacturing, lean service, lean healthcare and operations excellence.
David Shiplett
LinkedInExperience: Senior Lean Consultant · The ProAction Group
Senior Lean Consultant at The ProAction Group since 2022, Principal at Blue Wall Consulting since 2019 and Partner at Your Consulting Coach since 2026. Former Regional Operational Excellence Leader at Tempur Sealy International (2015–2019). The profile describes plant and enterprise lean experience with lean manufacturing tools such as 5S, visual factory, SMED, TPM, Kanban and JIT, plus Six Sigma, TRIZ and value stream mapping.
Greg Leatherman
LinkedInExperience: Lean Consultant · Practical Lean Enterprise
Lean Consultant at Practical Lean Enterprise since 2018; the profile describes him as its founder-consultant. Former Supplier Lean Engagement Manager (2011–2017), Lean Manufacturing Manager (2007–2011) and Engineering and Operations Manager (2001–2007) at Bose Corporation. The profile describes a Six Sigma Black Belt with experience in Lean Enterprise implementation.
Holly Blair
LinkedInExperience: 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 listed as Author, Lean Transformation for Small & Mid-Size Manufacturers at Lean Possibilities since 2025. Her 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.
John Lagos
LinkedInExperience: Lean Six Sigma Consultant · Lean Kaizen Consulting
Lean Six Sigma Consultant at Lean Kaizen Consulting since 2020, providing delivery-based services to small and midsize businesses in services and manufacturing and to non-profit organizations, per the profile. Former Honeywell Technologies roles include Lean Six Sigma Transformation Site Leader - Honeywell HOS (Manufacturing) (2013–2015) and Sr. Program Manager - Lean Aerospace Repair and Overhaul Campus (2010–2013).
Manny Veloso
LinkedInExperience: Lean Consultant Six Sigma Master Black Belt · CI Consulting Services, LLC
Lean Consultant Six Sigma Master Black Belt at CI Consulting Services, LLC since 2018, and former Lean Implementation Consultant Master Black Belt at DVIRC (2004–2018) and Lean Six Sigma Black Belt at Trane (2001–2004). The profile describes helping companies understand their improvement opportunities and delivering project-based certifications in which students solve real-world problems for the client.
Matthew Rassi
LinkedInExperience: Lean Manufacturing Consultant & Guide · Twenty Helping Hands LLC
Lean Manufacturing Consultant & Guide at Twenty Helping Hands LLC since 2018, and Advisory Board Member at Lean4Gain since 2024. Former Director of Operations and Continuous Improvement at Endoplus (2017–2022). The profile describes taking lean principles and helping client teams apply them to their own business by engaging and guiding them to improve their processes.
Shawn Klinge
LinkedInExperience: Principal Consultant · Klinge Lean Solutions LLC
Principal Consultant at Klinge Lean Solutions LLC since 2024. Former Vice President of Operations- Process Excellence at WOW Logistics (2022–2024), Executive Director of Process Excellence at Olympus Surgical Technologies Americas-OSTA (2016–2022) and Operational Excellence North America Leader at DePuy Synthes Companies (2013–2016). The profile describes driving lean strategy deployment as a Six Sigma Black Belt and Senior Lean Sensei.
Twan Kersten
LinkedInExperience: Sr. Consultant and Managing Director · Lean Consult Asia
Sr. Consultant and Managing Director at Lean Consult Asia since 2021, and International Expert Operational Excellence, WCOM, Lean, TPM and I4.0 at EFESO Management Consultants since 2022. Former Lean Advisor at ExxonMobil (2025–2026) and TPM and Supply Chain Management Consultant at Kroger (2023–2024). The profile describes Lean Consult Asia as an operational excellence consulting and training firm using Lean 6 Sigma and TPM methodologies.
Walt Garvin
LinkedInExperience: Lean Six Sigma & Industrial Engineering Consultant · Steadfast Partners
Lean Six Sigma & Industrial Engineering Consultant at Steadfast Partners since 2020. Former Professor of Practice at Clemson University College of Engineering, Computing and Applied Sciences (2018–2020) and Vice President of Lean Six Sigma & Industrial Engineering at Jabil (2009–2018), where the profile also lists Global Technical Director - Consumer Electronic Division (2006–2009).
Choose the right perspective
Match the consultant's background to your setting: someone who has led lean inside large manufacturers suits multi-site deployments, while a consultant working with small and mid-size firms suits a first lean program at a single site. Ask how they train and coach your own staff, since that determines whether the gains hold.
Questions to take into the conversation
- 01How do you choose the first processes or lines to improve when starting a lean program?
- 02Which lean tools do you introduce first, and how do you keep them from becoming box-ticking exercises?
- 03How do you measure whether lean improvements are sustained six to twelve months later?
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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