Who communicates sustainability best in Italy on their website and social networks such as Linkedin? And who flunks? The top company in this type of communication is Eni, followed by Terna and Generali . At the bottom of the ranking, however, are Nexi, Orsero and Zegna. Giving the grades in sustainability communications is the corporate communications firm Lundquist, which has been conducting this survey since 2007.