About contract management expertise centre CM Partners

CM Partners delivers a complete range of service with which organisations can handle the setup, professionalisation and implementation of contract management. An important principle in this is the contract management method developed by CM Partners: CATS CM®

CM Partners was founded in 2005 by Gert-Jan Vlasveld and the late Jan van Beckum. They stood at the cradle of the contract management profession in the 1990s. As a pioneer in the field, CM Partners has grown into a leading consultancy and training agency. To reinforce our mission, Linda Tonkes joined in 2019. As general manager, she continues to work with the partners on the development of contract management as a strategic instrument.


Organisations no longer do everything themselves, but increasingly enter into structural partnerships. We believe that partnerships can always be improved. That’s why we are concerned with the way in which organisations deal with contract and supplier management. This allows us to help them get the most out of their contracts.


By sharing our knowledge and insights regarding contract management, we make organisations and colleagues aware of the possibilities in the field with the unique CATS CM® approach. This allows them to make partnerships with other parties more effective, cheaper and more pleasant.


We develop training courses with which organisations can train their employees to become skilled contract managers or retrain specific knowledge. Additionally, we advise organisations on the setup and implementation of professional contract management.

Our team

Linda Tonkes

Managing director

Since March 2021 Linda is the managing director of CM Partners. Linda joined CM Partners in October 2019 as a senior partner. As an enterpreneurial accountant, she saw how contracts form the basis for good business. She is a miracle worker when it comes to contract strategy and contract management implementations. Linda has an allergy to things that don't work and she knows how to eliminate the blockages flawlessly. She is a sparring partner for organizations that want to control the contractual impact of outsourcing.

Arjen van Berkum

Senior partner

Arjen is a global knowledge leader in robotics, workforce of the future and automation, who regularly enters the world of business (eco)systems. He believes contract management is a vital business function. As managing director of Betula Group, Arjen sees a good synergy between his participation in CM Partners and the other activities within his company.

Gert-Jan Vlasveld

Senior consultant and trainer

Gert-Jan is a real ‘believer’ in contract management. He is one of the founders of CM partners and has had contract management running through his career as a central thread since 1995. Before the establishment of CM Partners in 2005, he held various positions in IT and facility management for twenty years. Gert-Jan is an experienced trainer and advisor, co-developer of the CATS CM® method and coauthor of the book ‘CATS CM version 4’. He is a member of the board at NBCM.

Kelly Turenhout

Communication manager

Kelly Turenhout has been communication advisor at CM Partners since 2013. As a freelance marketing communication professional, she has been helping organisations communicate their ambitions and identity since 2004. She does this by supervising companies in the creation of clear communication structures and messages. This allows these organisations to put maximum focus on their core: to realise their own ambition.

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