WKingspan Group plc is a building materials company based in Ireland trading in over 70 countries with 159 factories employing over 15,000 people. The company operates with five divisions; Insulated Panels, Insulation, Light & Air, Water & Energy, and, Data & Flooring.
WKnauf Gips KG is a multinational, family-owned company based in Iphofen, Germany, well known for drywall gypsum boards, founded in 1932. The company is a producer of building materials and construction systems comprising construction materials for drywall construction, plasterboard, cement boards, mineral fibre acoustic boards, dry mortars with gypsum for internal plaster and cement-based external plaster and insulating materials; glass wool, stone wool and other insulation materials under the company Knauf Insulation.
WLixil Group Corporation is a Japanese manufacturer of building materials and housing equipment, headquartered in Tokyo.
WReynaers Aluminium is a European developer of aluminium products for the building sector. The company also provides support for architects, fabricators, solar installers, project developers, investors and end users. The company, with its headquarters in Duffel, Belgium, employs over 1,500 workers in 37 countries worldwide and exports to 72 countries on 5 continents. In 2013 Reynaers achieved a turnover of 317 million euros.
WULMA Architectural Solutions is a construction sector cooperative that manufactures polymer concrete prefabricates for facades, channels and drainage. It is one of the 8 cooperatives that make up ULMA. One of the largest groups within the network of companies in Mondragon Corporation, the largest cooperative group in the world.
WViglacera Corporation is a construction materials company of Vietnam, manufacturing and selling ceramic floor tiles, stone floor tiles, wall tiles, cotto tiles, bricks, float glass, and plumbing fixtures such as sinks and toilets. The company is headquartered in the Từ Liêm District of Ha Noi and it is listed on the Ho Chi Minh City Stock Exchange.
WThe Xella Group with headquarters in Duisburg, Germany, develops, manufactures and markets building and insulation materials. With its Ytong, Silka and Hebel brands, Xella is one of the world's largest manufacturers of autoclaved aerated concrete and calcium silicate units. The Multipor brand stands for non-flammable mineral insulation boards.