| spimprovements.co.uk | SP Improvements - Six Sigma Process Improvement |
| sixsigmascotland.co.uk | Six Sigma Scotland Ltd - Continuous Improvement Consultants |
| six-sigma.com | Six Sigma Specialists |
| bmgi.com | Six Sigma Training and Consulting - BMG |
| specdoc.co.uk | Specdoc Partnership |
| organizedchange.com | Organized Change Consultants |
| chello.nl | Quality Function Deployment and Profit Performance Management |
| leanconcepts.com | Lean Concepts, LLC |
| lean-manufacturing-experts.com | Forewords Consulting Inc. |
| blueyonder.co.uk | James Brown - Quality Assurance Consultant |
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