Aziende partecipanti :
2020
- SAMBONET PADERNO INDUSTRIE SPA – Orfengo
- MEMC ELECTRONIC MATERIALS SPA – Novara
- KIMBERLY-CLARK SRL – Romagnano Sesia
- CLARIANT PRODOTTI SPA – Novara
- BIRLA CARBON ITALY SRL – Trecate
- NOVAMONT SPA – Novara
- ALPIQ ENERGIA ITALIA SPA – Novara
- ESSECO SRL – Trecate
- RADICI CHIMICA SPA – Novara
- BALCHEM ITALIA SRL – Marano Ticino
- SPIG SPA – Paruzzaro
2019
- SAMBONET PADERNO INDUSTRIE SPA – Orfengo
- MEMC ELECTRONIC MATERIALS SPA – Novara
- KIMBERLY-CLARK SRL – Romagnano Sesia
- CLARIANT PRODOTTI SPA – Novara
- BIRLA CARBON ITALY SRL – Trecate
- NOVAMONT SPA – Novara
- ALPIQ ENERGIA ITALIA SPA – Novara
- ESSECO SRL – Trecate
2018
- SAMBONET PADERNO INDUSTRIE SPA – Orfengo
- MEMC ELECTRONIC MATERIALS SPA – Novara
- KIMBERLY-CLARK SRL – Romagnano Sesia
- CLARIANT PRODOTTI SPA – Novara