Our company

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Our mission

We exist to help our clients save time, achieve staffing agility and make the best decision

Our concept

Involved Partners


Besides our network of highly qualified Altesians, our four partners are also active on the field and roll up their sleeves every day to ensure a permanent and flawless quality of services

Shared Knowledge Management


Our knowledge management strategy with standardized processes and best practices ensures that our team of consultants and interim managers constantly applies cutting edge industry standards

Smart Consultants 


We select our Altesians based on their excellent academic and professional background but also on their willingness to create immediate value for our clients. They are autonomous, hands on and feel responsible for client’s success

Result-driven Methodology


Thanks to our methodology (3S) and our knowledge management, we close the gap between your current and expected situation by analysing processes, systems and people with our unique Assessment Grid and Action Plan Canvas

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Our values

We act based on practical experience rather that theory. We know reality is always changing and we apply our experience and knowledge to adress problem as they arise


We are transparent, honest and loyal with our team and with our clients


We believe that people having fun will give their best efforts to perform well


All these values leads to Respect




year of foundation




successful projects

“Altesia was created in 2013 with the idea of transforming the paradigm of the labor market"


Our Partners

Cédric Van Themsche

Hands on Finance Partner

Cedric brings extensive experience in corporate finance, controlling, business development, operational excellence, IT and project management across multiple industries. He held various CxO level positions in the Media, Entertainment, Pharmaceutical and Healthcare industries.


Cedric holds a Master in Business Engineering from Solvay Business School and a MBA from Vlerick.


He is an expert in change management in the Finance function and currently works as CFO for a multinational entertainment group.

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Mathieu Delveaux

Hands on Finance Partner

Mathieu is a pragmatic finance manager with more than 15 years experience in financial audit, controlling, business development and financing.


Mathieu holds a Master in Business Engineering from Solvay Business School.


His main focus is on start-up, spin-off and SME’s. He is currently holding a position of CFO for 2 biotech companies.

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Gael Claude

Hands on Finance Partner

Gael is a pragmatic finance  manager with more than 15 years experience in various positions as financial auditor, financial controller and CFO.


Gael holds a Master in Business Engineering from Louvain School of Management.


He is currently holding a position of CFO and HR Manager for an internet retail company.

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Lise Barbeaux

Hands on Procurement Partner

Lise is a pragmatic Procurement manager in charge of Altesia Procurement. She has large experience in Procurement in mature and less mature organisations, in particular in the Healthcare sector.


Lise holds a Master in Business Management from HEC Liège and a Master degree of Arts in International Politics from ULB Brussels.


She had the opportunity to reorganise and manage a Procurement department of a large group of hospitals. She also has a deep expertise in Clinical Trial Procurement

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