Our Flagship Company the RB-Investor GmbH, based in Germany, which is a limited liability company according to the German law ... . RB-Investor is a service provider for investments in the counties of Germany, Austria, Switzerland, the USA, Russia and India. Our Company also owns two major brands of the Premium Door Solutions of the World, one is “Phillippe Doore” of Switzerland another one is “RDC” of Russia. The quality of our products withstand and conforms to all the international standards fixed by the premium relevant institutions and many a famous international chain of hotels worldwide as well. HambalTech This is a unique German marvel of technology exclusively developed by us. This is the only one of its kind in the World. Philippe-Doore’s secret to longer-lasting wood doors is an exclusive manufacturing process that protects against wood rot, water saturation, flammable and deformations. HumbleTech is the process how we make the doors and high-tech composite materials of the latest generation, such as a Ultralam raw materials. Our Valuable Clienteles Accor Hotels Group, Marriott International Hotel Group, Hilton Hotels and Resort, InterContinental Hotel Group, Starwood Hotels and Resort, Hyatt Hotel Group, Rezidor Hotel Group and many more. read more