GSN PROPERTY SERVICES CO., LTD.  was founded over 20 years ago in 1996 in Shanghai/China by Dr. Andreas Ermann and covers all regions of China through multiple branches. Our registered capital is US$ 1’000’000, and we hold ISO 9001:2015, 14000:2015 and OHSAS:2007 certifications as well as the highest  quality rating AAA for property services in Shanghai.

In over 100 client sites with more than 5’000’000 square meters GFA under management, we are providing international standard, innovative and customized solutions in the areas of technical, cleaning, gardening, security and support services which won us a number of client awards for outstanding services.

Many clients choose us for multi-service line packages where we are acting as the single point of contact and allowing them to focus completely on their core activities.

Mission Statement

  • GSN is the leading German property service company in China providing international property service concepts and standards under overseas specialists’ guidance
  • GSN stands for quality services and creating value in the properties under management
  • Full client satisfaction is our aim and we envision long-term strategic partnerships with our clients
  • To ensure that all phases of a building’s lifecycle are managed on a high professional level, GSN offers additional expertise and services for the planning, construction and redevelopment of clients’ buildings
  • To achieve lasting success and to ensure the future of GSN, teamwork, training on all levels and staff development systems are key
  • GSN is always one step ahead of competitors by constantly innovating service procedures and applying benchmark technologies for our industry
  • GSN is paying great attention to international EHS standards
  • Satisfied clients are the best basis for our business developments



GSN company China 1

GSN company China

"They entrusted us to manage their properties"