Prior to founding Altesia, Mathieu developed its financial expertise during 15 years in various environments. He began his career in audit at Deloitte were he spend almost 5 years on various assignments from SME’s to large companies with international exposure. In 2007, he joined IBA group, a leader in advanced radiation therapy and molecular imaging, as Financial Controller for the Molecular Imaging Business. During the 5 years spent at IBA group, he took active participation in strategic deals (financial, modelling, due diligence, negotiation, …), spent much time in business development activities (merger & acquisition, new products) and developed experience in financial planning, budgeting and controlling. In 2011 he joined Sowalfin group where he spent about 2 years as senior analyst working especially on the financing of innovative start-up/spin-off & SME’s. In 2013, he starts working as freelance CFO with a first assignment (1,5 year) for Cisbio Bio-Assays (France with subsidiaries in US & China) in the course of its MBO.