When you are not eligible for Diag Décarbon'Action: more than 500 employees, less than a year in business, a GHG inventory carried out in the last 5 years or a non-French company. This also applies if you want to work with a consultancy that is not approved by Bpifrance, which generally includes large consultancies. A standard assessment then remains well justified, at €11,000 to €18,000 excl. VAT for a single-site SME, and other grants exist, particularly regional or sector grants, although they are less substantial than the Diag.
Read the source article: Diag Décarbon'Action vs Bilan Carbone®: cost and conditions