R. J. Lamé

Van Leeuwen Buizen Groep BV engages in the manufacture and distribution of steel pipes, and pipe and tube applications. Its product portfolio includes round tubes, valves, hollow sections, breams, pipe components, and bar steel. The firm also offers services including material treatments, digital services, testing and inspection, technical information, logistical services, and project management. The company was founded by Piet Van Leeuwen in 1924 and is headquartered in Zwijndrecht, the Netherlands.

van Leeuwen Buizen Europa BV manufactures and distributor of steel pipes, valves and fittings. The company is headquartered in Zwijndrecht, the Netherlands.

Van Leeuwen Pipe & Tube Corp. engaged in operating trading company that specializes in steel pipes, valves, and fittings. It offers round tubes, hollow sections, pipe components, bar steel. valves, and beams. The firm also offers material treatments, testing and inspection, logistics services, project management, and digital services. The firm serves fluid power, equipment manufacturing, steel constructions, process, and power markets. The company was founded on July 18, 1975 and is headquartered in Houston, TX.

P. van Leeuwen Jr's Buizenhandel BV supplies iIron and steel products. The company is headquartered in Zwijndrecht, the Netherlands.

Part of Allianz SE, Universal Leven NV is a Dutch company that operates international research universities. The company is based in Leiden, the Netherlands.