Rolf C. Landgraf

PetroCapital Resources Ltd. is an investment company, which engages in the acquisition of strategic interests in businesses that involve in oil, energy, and minerals production. Its project portfolio includes Global Hunter and Verona, and Central Montana Resources. The company is headquartered in London, United Kingdom.

biolitec AG Jena develops and produces diode lasers, fibre optic disposables, and photodynamic drugs. It also provides photodynamic therapy and manufactures the cancer drug Foscan. The firm operates through the Medical Technology (Meditec) and Pharmaceuticals (Pharma) segments. The Meditec segment specializes in the distribution of fibers and laser probes. The Pharma segment focuses on the production, development and sale of pharmaceutical substances. The company was founded by Karsten Komischke, Sidney Balan, Kerstin Balan, Ilse Kaus and Denise Kaus on March 17, 1999 and is headquartered in Jena, Germany.

biolitec AG engages in the provision of medical laser applications and photodynamic therapy. It also provides applications in the field of phlebology, gynecology, ear-nose-throat, orthopedics, ophthalmology, and aesthetics surgery. The company was founded in 1988 and is headquartered in Vienna, Austria.

Landgraf Schneider Rechtsanwälte PartG is a legal services company based in Frankfurt am Main, Germany. Landgraf Schneider Rechtsanwälte PartG provides legal services. The German company was founded by Rolf C. Landgraf.

Projekt AG Planungsgesellschaft für Gebäudetechnik is a planning company for building technology based in Frankfurt, Germany. The German company provides services such as project planning, design, and implementation for various projects including Vitopia Campus, Kaiserlei, Sommerhoffpark, Überseequartier, WSHG, Lufthansa Mini Munich, and more. The CEO of the private company is Rüdiger Wessel.

Namendo Solutions AG provides surface finishing and heat treatment services. The private company is based in Berlin, Germany.