Theory of Constraints Consultancy

Find your one constraint. Fix it. Grow.

Bureau Léonard has spent 30+ years helping manufacturers and supply chains cut through complexity and focus on the single change that actually moves the needle — backed by our own C&DS software.

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30+ Years implementing TOC solutions
8+ Industries, from space tech to consumer goods
1 Constraint at a time — that's the whole method
Our domains

Practical solutions, lasting impact

The same focusing logic, adapted to four environments — with a different TOC tool doing the work in each.

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Change Management

The Thinking Processes turn resistance into a predictable sequence of questions — and consensus into a process, not luck.

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Supply Chain

Pull-based replenishment keeps stock where it's actually needed and cuts the inventory tied up everywhere else.

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Production

Drum-Buffer-Rope paces the whole plant to its slowest resource, cutting work-in-progress without cutting output.

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Project Management

Critical Chain protects the project's real deadline instead of each task's own due date — fewer delays, shorter lead times.

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The core cycle

Certainty is gone. Focus is what's left.

Every system has exactly one constraint that determines what it can deliver. For thirty years we've helped manufacturers and service providers identify that constraint, exploit it fully, and align the rest of the organisation around it.

01

Identify the constraint

Find the one resource, policy, or market limitation that determines how much the whole system can deliver.

02

Exploit the constraint

Get everything possible out of it before spending a single euro to expand it.

03

Subordinate everything else

Align every other resource and process to the constraint's pace — even if that means running below their own maximum capacity.

04

Elevate the constraint

Only invest to increase the constraint's capacity once steps one through three are fully exploited.

05

Repeat, don't relax

The constraint shifts. Go back to step one — old habits that linger become the next limitation.

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Our approach

How we work

We start with a thorough introduction to your organisation and its challenges. Together we explore how TOC principles can contribute to a lasting solution — combining our expertise with your practical knowledge to build an approach that works, and that the organisation actually owns.

Trusted across Europe

Our clients

Baxter Group Joos Verhaert Space Eldra
Proof

Results you can verify

Case study

TKF — cable manufacturer, worldwide

Lead time reduced by –50%. Delivery performance improved while finished-goods inventory dropped –30%. The first concrete results were visible within 8 months of the start of implementation.

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