j-fiber GmbH is one of Europe’s leading providers of optical fibers for data transmission and the only industrial-scale manuf ... acturer of fibers in Germany. In 2007, j-fiber became part of the LEONI Group, a global provider of products for energy and data management to the automotive sector and other industries. —————— Data protection: https://www.leoni.com/en/data-protection/ Imprint: j-fiber GmbH Management Board Dr. Ulrich Lossen, Frank Flohrer Registered office and registry court Jena Commercial register number HRB 210166 Value added tax identification number acc. to § 27 a German Turnover Tax Law (UStG) DE814052073 Responsible for the contents acc. to § 55 (2) German Interstate Broadcasting Agreement (RStV) Dr. Ulrich Lossen Telefon +49 3641 352-100 E-Mail info@j-fiber.com read more