Green Utility S.P.A. - Rome, Metropolitan City of Rome Capital

Green Energy Srls - Cannara, Province of Perugia

Green Eco Srl Sanificazioni e Servizi Ambientali - Guidonia Montecelio, Metropolitan City of Rome Capital

Societa' Agricola Rapolano Green Energy Srl - Serre di Rapolano, Province of Siena

Green Energy Utilities Srl - Fornacette, Province of Pisa

Ascendant Energy Solutions, Inc. -

Zicali, Inc. - San Diego, California

Butsko Utility Design Inc - San Diego, California

Engineering Partners INC. - San Diego, California

Leopold Biological Services -