Indeed you get a pretty sweet deal, and I know a few that do. But the R&D benefits aren't only for startups, most big companies try to fit all they can under C

Indeed you get a pretty sweet deal, and I know a few that do. But the R&D benefits aren't only for startups, most big companies try to fit all they can under CIR ("Crédit d'impôt recherche"—research tax exemption).