Colin Stanley Draper

Josef Gartner GmbH manufactures curtain wall, aluminum and steel facades. The firms products and services include aluminum single and double skin facades, closed cavity and steel facades. The company was founded in 1868 and is headquartered in Gundelfingen, Germany.

Part of Permasteelisa SpA, Permasteelisa (UK) Ltd. is a leading contractor in the design, engineering, project management, manufacture, and installation of curtain wall and advanced façade technologies. The company is based in London, UK. Permasteelisa Group engineers, designs, and manufactures architectural envelopes for signature landmark buildings worldwide, applying constant innovation in the fields of quality, safety, and environment through the use of advanced façade technologies. The British company aims to set and maintain standards of health, safety, and environmental performance to ensure the well-being of its employees and others affected by its operational activities. Founded in 1989, the company has a unique track record of landmarks and is a trusted partner to the world's top architects, general contractors, and developers.

Permasteelisa SpA engages in the design, manufacture, and installation of architectural components. It offers façade technologies and building systems. Its projects include East Side Tower in Berlin, Oceanwide Center in San Francisco, and MOL Campus in Budapest. The company was founded in 1973 and is headquartered in Vittorio Veneto, Italy.

Permasteelisa France SAS provides metal joinery and locksmith services. The company was founded in 1998 and is headquartered in Puteaux, France.