Client testimony

Flow management at McDonald's


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Critical Chain Project Management

Next online training sessions:
20th to 23rd of October 2020 (Fr)
Dates update:  1st to 04th of December 2020 (En)

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Training: ToC + Lean

TRAINING online (FR) from 6th to 9th October 2020

Using ToC to boost your Lean programme

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Offer: 2-Day Flash Diagnosis

Would you like our expert advice on how to go faster and further? 

We can help you to quickly identify the best levers to improve performance

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You missed the webinar for Marris Consulting 15th anniversary, the replay is available 

Discover the results obtained with TOC + Lean + etc, with 15 cases of implementation throughout the world


Advanced Critical Chain training

Next  online training sessions: 

From 27th to 30th of October 2020 (Fr)
From 08th to 11th of December (En)  

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Client testimony

Flow management at McDonald's


Learn about it

Welcome to the Marris Consulting website, a company focused on improving significantly and sustainably the performance of manufacturing and process industries

We have over 25 years of experience of combining the Theory of Constraints (ToC) with Lean to go faster and further: 1 + 1 = 3

We help our clients reach and maintain ambitious levels of performance by combining actions on processes, organization, methodologies, tools … and people from the shop floor to the board room.

We are recognized experts in Constraints Management. We promote an integrated approach that combines Theory of Constraints (ToC) to identify where to act and Lean and Six Sigma to improve performance.

We also use ToC's Critical Chain Project Management (CCPM) approach to boost project performance. We sometimes combine this with Lean Engineering (a.k.a Toyota New Product and Process Development System).

Our Supply Chain projects usually involve Demand Driven MRP (DDMRP).

Philip Marris, author of the french book "Le Management par les contraintes" is the founder and CEO of Marris Consulting.

Our motto: Factories, People & Results. 

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