Lean Certification validates your knowledge of and experience with lean principles. Lean Certification offered by the Lean Certification Alliance — Association for Manufacturing Excellence (AME), Shingo Institute, and SME – is a global, industry-recognized professional credential. Endorsers The Lean Certification Program and Alliance are endorsed by Catalysis and the Canadian Society for Quality. Endorsers support the Lean Certification Program and the Alliance’s mission of setting the standard for operational excellence and improving the workforce. Endorsers enhance the Alliance’s abilities to reach new markets and cultivate a strong community of continuous improvement practitioners.