- Allied International srl. - Provides fittings, flanges, pipes, stud bolts, seals for the petrochemical industry.
- Amitech Germany GmbH - Produces winded GRP pipesystems for pressure and no-pressure applications.
- AMT Srl - Suppliers of custom made carbon & alloy precision steel tubing suitable for the manufacturing of mechanical parts and elements.
- Assotubi SpA - Specialised in supplying steel pipes for micropiles and ground consolidations.
- Butting - Butting produces longitudinally welded pipes on several production lines.
- Ceruti Trafileria s.p.a. - Manufactures seamless cold-drawn steel tubes and welded cold-drawn precision steel tubes.
- Chinchurreta, sa - Offers steel welded pipes, black or hot galvanized, used for the transportation of fluid.
- Crane Process Flow Technologies GmbH - Manufactures and supplies industrial valves, actuators and positive-displacement pumps.
- Eisen- und Metallwerke Ferndorf GmbH - Manufacturer of longitudinally welded pipes in the Siegerland.
- Europipe GmbH - Designs large pipes for economical transport of gas and oil.
- Fine Tubes Ltd. - Specialist manufacturers of high specification tubing in stainless steel, nickel and titanium alloys.
- Fr. Jacob Sohne GmbH & Co. - Specialist in pipe systems for bulk goods handling and dust extraction as well as ventilation plants for environmental change.
- Future Pipe Industries - A specialist in the manufacturing and technology development of fiberglass pipe systems.
- Guarniflon S.p.A. - Manufacturers of finished and semi-finished products in polytetrafluoroethylene.
- Hijos de Juan de Garay, S.A. - Specialised in the production of cold drawn steel tubing and automotive tubular components.
- Irish Tube and Fittings Supply Ltd. - Stockist and supplier of carbon steel pipe and associated flanges, fittings and valves on the island of Ireland.
- JSC Makeevka MCW - Provides metal structures of pipelines for different purposes.
- Laminaciones Arregui - Manufacturer of heat and cold-formed welded steel piping, company located in Spain.
- Lowara srl - Offers products for the water supply and pumping needs in the residential, irrigation, building service and commercial markets.
- Mannesmann DMV Stainless GmbH - Provider of seamless stainless steel and nickel alloy tubes and pipes.
- Montage Onderneming Benelux BV - Operates in piping prefabrication and construction, construction equipment, steel constructions and steam tracing.
- Noksel Steel Pipe Co. Inc. - A steel pipe manufacturer in Turkey.
- Novero S.p.A. - Manufactures cold drawn welded tubes and dimensional tolerances for cylinder tubes.
- Officine Metallurgiche Ventura S.p.A. - OMV is Italy based company that offers electrical-welded steel tubes production.
- Paralloy Ltd - Manufacturers and fabricators of centrifugally spun cast alloy tube assemblies.
- Pipeco Slovakia Ltd. - Offers a construction system of preinsulated pipes, elbows, valves, compensators and other components.
- Remi Claeys Aluminium nv - Specialised in the production of high-frequency welded tubes.
- S.A. Herregods-Franssen N.V. - A steel tube trader in Belgium, Europe
- Saint-Gobain Pipelines plc - Supplier of a range of ductile iron pipes, fittings, valves, manhole covers, gullies and grates.
- Schumacher Stahlrohre GmbH & Co. KG - A stockholder of seamless cold-drawn precision steel tubes.
- Siderinox S.p.A. - Offers a range of stainless steel welded tubes.
- Silmet s.p.a. - Italian operators in the metallurgic industry who produces brass traps and brass tubes.
- Smiths Tubular Systems - Provider of flexible hose and rigid tube technology.
- Socotherm S.P.A. - Italy based company that offers pipe coating services and insulation contractor.
- Special Piping Materials - Suppliers of pipes, fittings and flanges includes seamles stainless tube and other pipe products.