Several hundreds of companies are already using SIEFreach^®. You will find here a few companies names who have indicated their agreement to be listed. This list will be updated regularly.

 Alcantara SpA
 Arkema
 Asturiana de Laminados, S.A.
 BASF SE
 Celanese Chemicals Europe GmbH
 ChemTrade Roth GmbH
 Clariant International Ltd
 Denis & Fils S.A.S.
 Eastman Chemicals BV
 EcoGreen Fine Chemicals B.V.
 Elementis Specialties
 Evonik Degussa
 Farbotex Srl
 Henkel AG & Co. KGaA
 Industrial Chemicals Limited
 Kao Chemicals Europe SL
 Kemira Oyj
 NetSun EU BV
 Phosphoric Fertilizers Industry S.A.
 Przedsiebiorstwo Uslugowo - Handlowo - Produkcyjne
   Solvent Export - Import M.M. Cichonscy sp.Jawna
 Puccioni SpA
 Rhodia
 Rohm and Haas Europe Services ApS
 Sadepan Chimica S.r.l
 Sapio Produzione Idrogeno Ossigeno S.r.l
 SIAD - Societá Italiana Acetilene e Derivati S.p.A
 Sigma-Aldrich
 Tiangang Chemicals (UK) Ltd
 Tioxide Europe Ltd
 Wanhua Netherlands BV
 Zaklady Chemiczne "POLICE" SA