International
Lean Six Sigma Institute

Institute for the Advancement and Application of Lean Six Sigma principles and tools for business process improvement and OpEx | Facilitator of World Class Lean Six Sigma Coaching and Training.

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Certification

We provide Accredited Lean Six Sigma Certifications through our online proctored exams. We offer a wide variety of certification levels from Yellow Belt all the way to Master Black Belt level.

Coaching

Our team of experienced Lean Six Sigma Black Belts and Master Black Belts can provide both onsite and remote coaching.

Consulting

We provide onsite consulting services. We assist clients with specific problems they are facing and use the Lean Six Sigma methodology, principles, tools and techniques.

ILSSI is on a mission be the most admired International Lean Six Sigma organisation for its people, partnerships and performance. Collaboration with Universities, Business Hubs, Government Departments and Research facilities.

Facilitates and communicates best practices in the training and practical application of Lean Six Sigma principles, tools and techniques. Provides governance to ensure the integrity of examinations and certifications for Lean Six Sigma.

Conducts research and publishes case studies and white papers. Directors and Non-Executive Board Members from UK, Africa, Romania, Saudi Arabia, Italy, Pakistan, Switzerland, Portugal, USA, Nigeria, Caribbean and Central America, Brazil, Egypt and Hong Kong.

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Take a look at our conferences

International Lean Six Sigma Institute Conferences

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ILSSI Excellence Awards 2023

Most frequent questions and answers

Yes, all of our Lean Six Sigma exams and certifications are  Internationally Accredited and Certified by the ILSSI, based in the UK and international partners on every continent.

There are 4 levels of certifications,  Yellow Belt, Green Belt, Black Belt and Master Black Belt.  To obtain a Yellow, Green or Black Belt Lean Six Sigma certification, you must pass an exam ( e-mail us for more information or see https://ilssi.org/dashboard/ ).  For the Master Black Belt you must also have proof of at least 5 years as a successful practicing Black Belt and have completed at least 3 DMAIC projects which can be audited by the International Lean Six Sigma Institute ( e-mail us for more information about the auditing process ).

Yes, ILSSI offers Lean Six Sigma exams in different languages.  We presently offer English, French and Italian with plans to offer Dutch, Spanish and Romanian by the end of 2020.

ILSSI 5ST3PS Excellence Award 2023

Best Lean Six Sigma Training provider in The Netherlands 2022

March 2023, Rotterdam, The Netherlands: 5ST3PS achieved the award for Best Lean Six Sigma Training provider in The Netherlands 2022. This is in recognition of 5ST3PS training programme, which encourages and supports workers, management and teams in process improvement using Lean and SIx Sigma principles and tools. The award validates that the organisation has top ranked trainers and training practices in Lean Six Sigma. The award was accepted by Willem Salentjin CEO and Master Black Belt  5ST3PS 

ILSSI Trophy Certified Lean Six Sigma Organisation
Allianz Services Romania Certified Lean Six Sigma Organisation (Silver)

June 2022, Bucharest, ROMANIA: Allianz Services Romania achieved the Silver award for  Lean Six Sigma programme at an Organisation level. This is in recognition of Allianz Romania’s operational improvements programme, which encourages and supports workers, management and teams in process improvement using Lean and SIx Sigma principles and tools. The certification validates that the organisation has implemented the fundamental principles of Lean Six Sigma into its operations and supports medium-scale process improvement initiatives as part of their company culture. The organisation benefits from the use of trained and certified Lean Six Sigma Yellow Belts and Green Belts as project team members and leaders in its continuous improvement program. The award was accepted by Adela Nanus,  Chief Operations Officer Allianz Services Romiania

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ILSSI Project Excellent Award 2021: TWI Global, Cambridge UK

March 2021, Cambridge, UK:  TWI Director of Technology, Mike Russell, said, “I am delighted to receive, on behalf of TWI, the Lean Six Sigma Project Excellence award from ILSSI. This is in recognition of TWI’s local operational improvements programme, which empowers and supports our staff and teams to engage with and resolve their operational issues. The programme so far has supported over 30 local interventions within TWI, improving our processes and working environment in response to the insights and understanding of those in the gemba.”