We're Trusted By



We've had the pleasure of working with some great manufacturers. All with a desire to improve and make lasting change.  Here's what they say about us...

Managing Director

£2m Plastics Business

Sempai simply deliver exceptional value

I would not hesitate in recommending the team at Sempai to any business wishing to reduce & remove waste or develop a strategic plan

Group Lean Director

£3bn Global Construction Industry

We have worked closely with Sempai carrying out full lean assessments of all our operational facilities around the world

The assessments are invaluable as a tool to drive Operational Excellence 

Operations Manager

£200m Japanese Automotive Transplant

Sempai and I worked together implementing strategic training/reward and recognition programmes to direct line supervision and lean improvements. Sempai has significant experience in this field and has worked across different industries and excels in communicating with all levels across the business, gaining buy in and support

Quality Manager

£80m Tier 1 Manufacturing Business

I have the pleasure of working with Sempai. They made a huge impact in embedding both Quality, Lean Systems and Understanding

Head of Industrial Engineering

US Aerospace Group

Russell from Sempai is without doubt the best at coaching lean principles.  Not only does he teach it, he does it.

He  sees events through to completion.  He takes time at all levels to explain why and after giving people the tools coaches them to success.  A practical thinker who often relates reals situations when teaching lean

Managing Director

£5m SME Plastics Business

Sempai's holistic approach covers the full panoply of business improvement areas, not just lean manufacturing techniques, and this has helped us to improve our thinking and practice in areas of quality, health & safety as well as our approach to environmental issues.  


Sempai has helped our people to understand how these aspects dovetail together making it easier to maintain these higher standards

For more detail of how we can help you check out our services page or take a look at some of our case studies