| Company | Country |
| Acroni d.o.o. | Slovenia |
| Albrecht Zwick GmbH | Germany |
| Althammer GmbH & Co KG | Germany |
| Ambica Steels Ltd | India |
| Anoop Forgings Pvt. Ltd | India |
| ANTONIUS Vesselheads bv | Netherlands, The |
| ArcelorMittal Genk Stainless Europe | Belgium |
| Arcus Nederland bv | Netherlands, The |
| ATI - Allegheny Ludlum | USA |
| Baoji Titanium Industry Co Ltd | China |
| Beck Crespel - Basco | France |
| Bercellesi Berinox srl | Italy |
| BIBUS Metals AG | Switzerland |
| Böllinghaus GmbH & Co. KG | Germany |
| Brück Group bv | Netherlands, The |
| Bruker Quantron GmbH | Germany |
| Buhlmann Rohr-Fittings Stahlhandel GmbH + Co KG | Germany |
| BUTTING GmbH & Co. KG | Germany |
| Cangzhou Kwan Hing S/S Manufacturing Co., Ltd | China |
| Centravis | Ukraine |
| Chandan Steel Ltd | India |
| China National Machinery & Equipment Import & Export Corp | China |
| Cixi Tiandi Precision Machinery Co., Ltd | China |
| CJSC Tube Works VSMPO-AVISMA | Ukraine |
| CML Alloys | United Kingdom |
| Cogne Acciai Speciali SpA | Italy |
| Condoroil Impianti Srl | Italy |
| Corrotherm International Ltd | United Kingdom |
| CSAI Centro Servizio Acciai Inox SpA | Italy |
| CSC SpA | Italy |
| Dacapo Stainless BV | Netherlands, The |
| Deutsche Nickel GmbH | Germany |
| Dutch Industrial Fasterners B.V | Netherlands, The |
| Dynamic Materials Corporation | USA |
| Echjay Forgings Pvt Ltd | India |
| Enpar Sonderwerkstoffe GmbH | Germany |
| Erne Fittings GmbH | Austria |
| Euro-Titan Handels AG | Germany |
| Ezeflow Inc | Canada |
| FAE Fabricación de Aleaciones Especiales sa | Argentina |
| Ferimpeks Dis Ticaret Ltd STI | Turkey |
| Ferral Componets Oy | Finland |
| Fine Tubes Ltd | United Kingdom |
| Fivebros Forgings Pvt Ltd Head Office | India |
| Froch Enterprise Co Ltd | Taiwan, ROC |
| Gemaco sa - Special Stainless Steels | Belgium |
| GMT Global Metal Trading International as | Norway |
| Guangzhou Hongda Steel Tube Co Ltd | China |
| Hailong (Zhangjiagang) Industry Co Ltd | China |
| Hammerschmiede van Triel GmbH & Co. KG | Germany |
| Harald Pihl AB | Sweden |
| HART bv | Netherlands, The |
| Heavy Metal & Tubes Ltd | India |
| Hebei Cangzhou Tiangong Stainless Products Ltd | China |
| Hempel Special Metals Group | Germany |
| Hertecant NV | Belgium |
| Hilton Metal Forging Ltd | India |
| Hindustan Metels | India |
| Hung Liang Metals Co., Ltd. | Taiwan, ROC |
| HuZhou FengTai Stainless Steel Pipe Co.,LTD | China |
| ICARUS sa | Belgium |
| ICEM Engineering Company Ltd | India |
| ILTA Inox srl | Italy |
| Inoxidables de Rábade, S.A. | Spain |
| International Piping Products (Europe) Ltd | United Kingdom |
| Italfond SpA | Italy |
| Italinox s.r.o. | Czech Republic |
| Jacquet Nederland bv | Netherlands, The |
| Jiangsu Hongcheng Stainless Steel Product Co., Ltd. | China |
| Jiangsu Wujin Stainless Steel Pipe Group Co., Ltd | China |
| Jiangyin Hengyou Hardware Machinery Co Ltd | China |
| Jiangyin Topwill Flange Fittings Industrial Corporation | China |
| JSC Denprospetsstal | Ukraine |
| Jürgen Witte Nederland BV | Germany |
| Jyoti Steel Industries | India |
| Kennametal HTM AG | Switzerland |
| KME Germany AG | Germany |
| Kube Stahl GmbH & Co KG | Germany |
| Kuze Bellows Kogyosho Co Ltd | Japan |
| Laxcon Steels Ltd | India |
| LCMA - Luxembourg Company of Metals and Alloys S.A. | Luxembourg |
| Loeser GmbH | Germany |
| LST - Linster Stainless Trading GmbH | Germany |
| Luda Development Ltd | Hong Kong |
| Magnatech Europe bv | Netherlands, The |
| Marcegaglia SpA | Italy |
| Maxvalue Industries Co Ltd | China |
| MCB Groep | Netherlands, The |
| Metals UK Ltd | United Kingdom |
| Montanstahl AG | Switzerland |
| Namtec (National Metals Technology Centre Ltd) | United Kingdom |
| Nichelcrom Acciai Inox SpA | Italy |
| Nippon Yakin Kogyo Co Ltd | Japan |
| NIRO Wenden GmbH | Germany |
| Nironit Edelstahlhandel GmbH & Co. KG | Germany |
| Nolte GmbH | Germany |
| Noxon Stainless bv | Netherlands, The |
| Nuova HPT SRL | Italy |
| Officine Orsi SpA | Italy |
| Outokumpu Oy | Finland |
| Oxford Instruments | Germany |
| PA Inc | USA |
| Paul Meijering Metalen bv | Netherlands, The |
| PCM Technology Oy | Finland |
| Peter Vossen GmbH | Germany |
| Plymouth Tube Company | USA |
| PNP International Group Inc | USA |
| Poligrat GmbH | Germany |
| Prakash Steelage Ltd | India |
| Productos Tubulares sa | Spain |
| Proform sa | France |
| Quality Stainless Pvt Ltd | India |
| Raccortubi SpA | Italy |
| RathGibson | USA |
| Ratnadeep Metal & Tubes Ltd., | India |
| Ratnamani Metals & Tubes Ltd | India |
| RO-FI Edelstahlhandel GmbH | Germany |
| Rolled Alloys Inc | USA |
| Sadel Stainless Steel | Belgium |
| Salzgitter Mannesmann Stainless Tubes | Germany |
| Sandmeyer Steel Company | USA |
| Sandvik Materials Technology | Sweden |
| Sankyo & Co Ltd | Japan |
| Sassoli Group | Italy |
| Schmidt + Clemens GmbH + Co KG | Germany |
| Schmolz + Bickenbach B.V. | Netherlands, The |
| Shanghai China Industrial Import and Export Trading co, Ltd | China |
| Shanghai Hongji Nanbo Stainless Steel Co Ltd | China |
| Shanghai Huaxia Industry Co Ltd | China |
| Shanghai JUDD Pipeline Industry Co Ltd | China |
| Shanghai Kemi Steel Tube Co Ltd | China |
| Shanghai Makalu International Co Ltd | China |
| Shanghai Tianbao Stainless Steel Co Ltd | China |
| Shanghai Want Industry Co Ltd | China |
| Shanghai Yeup Metal Material Co Ltd | China |
| Shree Ganesh Forgings Ltd | India |
| Siderval SpA | Italy |
| SKM Steels Ltd | India |
| Snel Staal bv | Netherlands, The |
| So.Ge. Par. SpA div. Metalsteel -3S | Italy |
| Special Metals Welding Products | USA |
| Spectro Analytical Instruments GmbH & Co KG | Germany |
| Stainalloy Nederland bv | Netherlands, The |
| Stalatube Oy | Finland |
| Stappert Spezial-Stahl Handel GmbH | Germany |
| Starfit China Ltd | Hong Kong |
| Starofit Klose GmbH + Co KG | Germany |
| Steel Plate & Sections Ltd | United Kingdom |
| Sumitomo Metal Industries Ltd | United Kingdom |
| Suraj Stainless Ltd | India |
| Teuling Staal bv | Netherlands, The |
| Thermo Scientific Niton Analyzers | Germany |
| ThyssenKrupp Materials International GmbH | Germany |
| ThyssenKrupp Nirosta GmbH | Germany |
| Timesavers International bv | Netherlands, The |
| Tool Peaks Industries Ltd | China |
| Torresin Titanio Metalli SpA | Italy |
| Tranox GmbH | Germany |
| Tsingshan International | China |
| Tubacex sa | Spain |
| Uniti Titanium | France |
| Universal Eisen und Stahl GmbH | Germany |
| Van Leeuwen Stainless bv | Netherlands, The |
| Villares Metals International bv | Netherlands, The |
| Viraj Alloys | India |
| Voß Edelstahlhandel GmbH & Co KG | Germany |
| VSM Vereinigte Schmirgel- und Maschinen-Fabriken AG | Germany |
| Walzwerke Einsal GmbH | Germany |
| Wen Zhou BaoFeng Special Steel Co Ltd | China |
| Wenzhou Jiangnan Steel Pipe Manufacturing Co., Ltd | China |
| Wyman Gordon Ltd | United Kingdom |
| Xian Raina Industry Co Ltd | China |
| Zhangjiagang Huayu Nonferrous Metal Material Co Ltd | China |
| Zhejiang Bona Steel Tube Co Ltd | China |
| Zhejiang Jiaxing Zhongda Group Co Ltd | China |
| Zhejiang Jiuli Hi-Tech Metals Co Ltd | China |
| Zhejiang Yuli Pipeline Industry Co Ltd | China |