When leadership asks “What’s the ROI?” — you need real numbers, not theory. Here’s what Lean Six Sigma actually delivers, based on data from hundreds of engagements.
The Numbers
Across all QMSLean engagements, we see consistent patterns:
- Average waste reduction: 35% (measured in material, labor, and overhead costs)
- Cycle time improvement: 40% average reduction
- Quality defect reduction: 60% average improvement
- Typical project ROI: 3:1 to 10:1 within the first year
ROI by Engagement Tier
Bronze (Assessment): The $2K–$5K investment in a Lean assessment typically identifies $50K–$200K in improvement opportunities. Even implementing just the quick-wins often pays for the assessment 5x over.
Silver (Targeted): A $7.5K–$15K engagement with focused Kaizen events typically delivers $75K–$300K in annual savings. ROI is achieved within the first 90 days — guaranteed.
Gold (Transformation): Enterprise transformations of $20K+ typically deliver $500K–$2M+ in annual value through systemic improvements across the organization.
The Compounding Effect
The real power of Lean isn’t the initial project savings — it’s the compounding effect. Organizations that build continuous improvement culture see 5–10% year-over-year operational improvement without additional consulting investment.
Want to estimate the ROI for your specific operation? Use our free ROI Calculator to get a personalized assessment. For a deeper analysis with hard financial data, explore our detailed ROI analysis article.
Organizations pursuing ISO certification alongside Lean implementation can work with our sister brand Exceleor to align both initiatives for maximum efficiency.