- Germany Trade & Invest GTAI, the German government agency providing support to foreign investors https://www.gtai.de/gtai-en/invest/investment-guide
- NRW Global Business, foreign trade promotion agency of the state of Northrhine Westphalia https://www.nrwglobalbusiness.com/ja/%E4%BC%9A%E7%A4%BE%E6%A6%82%E8%A6%81/nrw-japan-kk
- EXPAT SERVICE DESK ME & DUS (Service point for international professionals in the state capitol Duesseldorf and the county of Mettmann) https://www.expatservicedesk.de/en.html
- Frankus Japanese language information site https://www.yappango.com/support/frankus.html
