The Foundation has no lucrative or religious aims. It plans, directs and organizes, as project manager, the maintenance work necessary for the conservation of these temples and chapels. For this purpose, it gathers the funds necessary for the achievement of the work, by collecting private (individual and collective) and public (communal) donations and by applying for the public subsidies (federal and cantonal) available through the relevant legislation.

A Foundation Council of ten members is nominated, in accordance with the statutes of the Foundation, for four years. It meets regularly to supervise the restoration and maintenance projects of these buildings. Representatives of the Reformed Church of Geneva (denomination modified in 1999) and of its Consistory, but also of the Canton of Geneva and Geneva communes (including the City of Geneva), sit on the Foundation Council for this purpose..