| Name | Country | Market Cap (US$) |
|---|
| Brisk Steel Products Sdn Bhd | Malaysia | Private |
| Bristol Metals, L.P. | United States | Private |
| Bristolpipe Corporation | United States | Private |
| Britannia Refined Metals Ltd | United Kingdom | Private |
| BRITISH & MIDLAND FORGINGS LTD | United Kingdom | Private |
| British Alcan Aluminium plc | United Kingdom | Private |
| British Aluminium Ltd | United Kingdom | Private |
| British Engines Ltd | United Kingdom | Private |
| British Steel Canada Holdings Inc. | Canada | Private |
| BRITISH STEEL TUBES EXPORTS LTD | United Kingdom | Private |
| BRITISH TUBES STOCKHOLDING LTD | United Kingdom | Private |
| Brittany Corporation | United States | Private |
| BRITTERM s.r.o. | Czech Republic | Private |
| Brix Zaun + Tor GmbH | Austria | Private |
| Broadband Access Systems, Inc | United States | Private |
| BROADWAYS STAMPINGS LTD | United Kingdom | Private |
| Bröderna Edstrand AB | Sweden | Private |
| BROEN S A | Poland | Private |
| BROMFORD IRON & STEEL CO LTD | United Kingdom | Private |
| BRONIFER SPA | Italy | Private |
| Bronx International, Inc | United States | Private |
| Bronze Acior SA | France | Private |
| BRONZE ALU | France | Private |
| Brookside Metal Co Ltd | United Kingdom | Private |
| Brorup Maskinhandel ApS | Denmark | Private |
| Brose Schließsysteme GmbH & Co. KG | Germany | Private |
| BROTHERS THREE INDUSTRIAL CORP. | Taiwan | Private |
| BROWN & TAWSE STEELSTOCK LTD | United Kingdom | Private |
| Brown-Campbell Company | United States | Private |
| Brubaker Steel Inc | United States | Private |
| Brück Gesellschaft mit beschränkter Haftung | Germany | Private |
| Brugg Kabel AG | Switzerland | Private |
| BRUGG Rohrsystem AG, Böttstein | Switzerland | Private |
| BRUGOLA O.E.B. INDUSTRIALE SPA | Italy | Private |
| Bruin Engineered Parts Inc | Canada | Private |
| Brukens Nordic AB | Sweden | Private |
| Brunk Industries Inc | United States | Private |
| Brunswick Enterprises Limited | Canada | Private |
| Brunvoll AS | Norway | Private |
| Brunvoll AS | Norway | Private |
| Brush Ceramic Products Inc | United States | Private |
| Brush International Inc | United States | Private |
| BRUSH WELLMAN (SINGAPORE) PTE LTD | Singapore | Private |
| BRUSH WELLMAN(JAPAN), LTD. | Japan | Private |
| Brush Wellmann GmbH | Germany | Private |
| Bryan Steam Corporation | United States | Private |
| BS SERVICE K.K. | Japan | Private |
| BSB Baustahlschneide-, -biege- und -handelsges. mbH | Germany | Private |
| BSL TUBES ET RACCORDS | France | Private |
| BST TUBI SRL | Italy | Private |
| BSTG, Drahtwaren Produktions- und Handels-GmbH | Austria | Private |
| BT Magnet-Technologie GmbH | Germany | Private |
| Btd Manufacturing Inc | United States | Private |
| Btd Manufacturing, Inc. | United States | Private |
| BTR Saiag Sealing Systems S.p.A. | Italy | Private |
| BTV SA | Spain | Private |
| Buckeye Steel Castings Company | United States | Private |
| Buckner By Storm | United States | Private |
| Buderus Feinguss GmbH | Germany | Private |
| Buderus Guss Gmbh | Germany | Private |
| Bufab Lann AB | Sweden | Private |
| Buhlmann Rohr-Fittings-Stahlhandel GmbH + Co. KG | Germany | Private |
| Buhrke Industries Llc | United States | Private |
| Buhrke Industries Llc | United States | Private |
| Building Material Distributors, Inc. | United States | Private |
| BULLONERIA BARGE SPA | Italy | Private |
| BULNAVA SRL | Italy | Private |
| Bulong Nickel Pty Ltd | Australia | Private |
| Bulong Operations Pty Ltd | Australia | Private |
| Bulwell Precision Engineers Ltd | United Kingdom | Private |
| Bundy Fluid Systems Co.,Ltd. | China | Private |
| BUNME, K.K. | Japan | Private |
| Buntmetall Amstetten Gesellschaft m.b.H. | Austria | Private |
| Burger Industriewerk GmbH & Co. KG | Germany | Private |
| Burgess-Norton Manufacturing Co. | United States | Private |
| Burgmaier Metalltechnik GmbH + Co KG | Germany | Private |
| Burnes Operating Company, Llc | United States | Private |
| BURNTISLAND FABRICATIONS LTD | United Kingdom | Private |
| Burrough's Corp | United States | Private |
| Burseryds Bruk AB | Sweden | Private |
| BURSUK COMPUTERIZED PRODUCTION LTD. | Israel | Private |
| Burwill & Company Limited | Hong Kong | Private |
| Burwill Resources Limited | Hong Kong | Private |
| Burwill Warehousing (Shanghai) Ltd. | China | Private |
| Büsscher & Hoffmann Gesellschaft m.b.H. | Austria | Private |
| BUTTING GmbH & Co. KG. | Germany | Private |
| Buysmetal NV | Belgium | Private |
| BWB - Altenrhein AG | Switzerland | Private |
| BYOSADA HONTEN, K.K. | Japan | Private |
| C & B Piping Inc | United States | Private |
| C & H Die Casting Inc | United States | Private |
| C Brown & Sons (Steel) Limited | United Kingdom | Private |
| C C C Steel, Inc | United States | Private |
| C C H T Llc | United States | Private |
| C F & I Steel, L. P. | United States | Private |
| C F BOOTH LTD | United Kingdom | Private |
| C J UPTON & SONS LTD | United Kingdom | Private |
| C P Industries Inc | United States | Private |
| C S M Industries Incorporated | United States | Private |
| C S T Industries Inc | United States | Private |
|
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