| Type | Company | Country | Website |
| Plate | Columbus | South Africa | www.columbus.co.za |
| Acerinox | Spain | www.acerinox.com |
| Thyssen Krupp | Germany | www.thyssenkrupp-steel.com |
| Outo Kumpu | Finland | www.outokumpu.com |
| Aperam Inox | Belgium | www.aperam.com |
| Posco | Korea | www.posco.com |
| Mobarakeh Steel | Iran | www.msc.ir |
| Duferco Clabecq | Belgium | www.duferco.be |
| Pipe | Tubos Reunidos S.A | Spain | www.tubosreunidos.com |
| Van Leeuwen | Netherlands | www.vanleeuwen.com |
| Arcelormittal | Romania | http://arcelormittal.com/ |
| Sumitomo | Japan | www.sumitomocorp.co.jp |
| Tenaris | Luxembourg | www.tenaris.com
|
| Tube | Tubacex | Spain | www.tubacex.com |
| TPS | Germany | www.tpsd.de |
| Schoeller Bleckmann | U.K | www.schoeller-bleckmann.co.uk |
| TMK | Russia | www.tmk-group.com |
| Flange | Officine Santafede | Italy | www.officinesantafede.com |
| Galperti | Italy | www.galpertisrl.com |
| ITM Group | Italy | www.itmgroup.it |
| Nirotec | Germany | www.nirotec.de |
| Icarus | Belgium | www.icarus-be.com |
| Melesi | Italy | www.melesi.it |
| Shin Woo | Korea | www.shinwoometal.co.kr |
| Fitting | Tectubi Raccordi | Italy | www.tectubiraccordi.com |
| Icarus | Belgium | www.icarus-be.com |
| IRC | Italy | www.ircbwf.it |
| ITM Group | Italy | www.itmgroup.com |
| Benkan | Japan | www.benkan.com |
| Nirotec | Germany | www.nirotec.de |
| Erne Fittings | Austria | www.ernefittings.com |
| Valves | Spirax Sarco | UK | www.spiraxsarco.com |
| Leser | Germany | www.leser.com |
| LVF | Italy | www.LVF.it |
| OMB Valves | Italy | www.ombvalves.com |
| Douglas Chero | Italy | www.douglas-chero.com |
| Alco Valve | U.K | www.alco-valves.com |
| Calobri | Italy | www.calobri.com |
| ARI Armaturen | Germany | www.ari-armaturen.com |
| TLV | Japan | www.tlv.com |
| Actuator | Auma | Germany | www.auma.com |
| Rotork | U.K | www.rotork.com |
| Samson | Germany | www.samson.de |
| Schiebel | Austria | www.schiebel-actuators.com |
| Zpua | Poland | www.zpua.com.pl |
| Instrument | Wika | Germany | www.wika.de |
| Rosemount | USA | http://www2.emersonprocess.com/ |
| Endress Hauser | Switzerland | www.endress.com |
| Yoko Gawa | Japan | www.yokogawa.com |
| Krohne | Germany | www.krohne.de |
| Ashcroft | Germany | www.ashcroft.eu |
| Kobold | Germany | www.kobold.com |
| Siemens | Germany | www.siemens.com |
| Georgin | France | www.georgin.com |
| ABB | Switzerland | www.abb.com |
