Contassur Pension Experts manage supplementary pension schemes, offering services from setup to operational management and financing. They serve companies in the Belgian gas and electricity sectors, as well as those linked to the ENGIE group. Contassur uses an insurance company and five pension funds for management. Their services include actuarial valuations and pension scheme coordination. The unique selling proposition is their mutualist approach, focusing on cost optimization without commercial objectives, and decision-making parity between employers and employees. This approach allows them to offer tailored solutions with synergies and economies of scale for both large and small companies.