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Tamahris+ACT-ON GROUP: exclusive negotiations between the two firms!

France, Neuilly-sur-Seine - May 6, 2024 - ACT-ON GROUP, a leading player in organizational, digital and cultural transformation activities, announces it has entered in exclusive negotiations for the acquisition of Tamahris, a consultancy company specialized in HRIS, integrated and end-to-end talent management, including a certified "Cornerstone" centre of expertise. 



With annual revenues exceeding €75 millions, an established presence in France and Switzerland, and a fast-expanding presence in Europe, ACT-ON GROUP is establishing itself as a leading player in HumanTech. As a well-known expert in Human Resources, Data & Technology, this consulting & services company mobilizes its combined expertise and its ecosystem of partners to support its customers in the success of all their transformation projects. 


Tamahris, with annual revenues of €4 millions, a presence in Belgium & Germany, and operations throughout Europe, is a specialist in HR technologies, and particularly an expert in the implementation of the Cornerstone solution for talent management. 


Cornerstone powers the potential of organizations and their people to thrive in a changing world. Cornerstone Galaxy, the complete AI-powered workforce agility platform, allows organizations to identify skills gaps and development opportunities, retain and engage top talent, providing multimodal learning experiences to meet the diverse needs of the modern workforce. 



ACT-ON GROUP CEO, Philippe Ferry, is enthusiastic about this new stage of development:  "Such move is designed to reinforce the complementary skills of the two firms, offering integrated solutions and end-to-end services to our customers, as well as boosting the development of our business lines (Strategy, HR & HRIS, Data, Technology) on a European scale". 


Vincent van Lennep & Geert Van Gucht, founders and managing partners of Tamahris explain:  "This partnership will allow us to offer a more complete set of HR strategic and technical services to our clients, while broadening the market for our Cornerstone expertise and services.  We are thrilled to engage in this new chapter, which offers great perspectives to our employees". 



The agreement is a key milestone in the collaboration process and demonstrates the two parties' mutual commitment to explore new growth opportunities. 


The respective executive teams of the two companies are already working actively to finalize the details of this deal. Further information will be announced shortly






Find out more about ACT-ON GROUP : 

Find out more about Tamahris : 






Press contacts:  



19 rue d’Orléans, 92200 Neuilly-sur-Seine 

Franck MICHEL 

Head of Marketing & Communication 

+33 6 27 51 84 22 

Avenue Arnaud Fraiteur 15, 1050 Bruxelles Belgium 

Geert Van Gucht Co-founder & Managing Partner  

+32 478 88 59 92  



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