- Procon Europe B.V.
- Address:Eisenhowerlaan 77D, The Hague, Zuid Holland, Netherlands
- Unisteel BV
- Address:Eursing 2, Beilen, Netherlands
- Poly Active BV
- Address:Priamsingel, Capelle aan den IJssel, Zuid-Holland, Netherlands
- Huwa International Pipeline Products
- Address:Boskantseweg 35a, Sint-Oedenrode, Noord-Brabant, Netherlands
- Castart B.V.
- Address:S.H. de Roosstraat 20, Deventer, Netherlands
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