For North Rhine-Westphalia

Information on the current development of political extremism and politically motivated crime at state level can be obtained from the Ministry of the Interior of North Rhine-Westphalia, Department 6 (Protection of the Constitution).
https://www.im.nrw/themen/verfassungsschutz

For the Federal Republic of Germany
An overview of the situation in Germany is provided by the latest report on the protection of the constitution from the Federal Office for the Protection of the Constitution. 
http://www.verfassungsschutz.de/

For schools and science
In addition, the Federal Agency for Civic Education maintains an extensive online offering on various manifestations of extremism and on topics relating to internal security, which provide in-depth insights - for example for school or academic work.
http://www.bpb.de

Initiative for Economic Protection
The Economic Protection Initiative of the state and business has set itself the goal of better protecting central corporate values for Germany and its economy. To this end, several players from business and government, coordinated by the Federal Ministry of the Interior, are working together in partnership. www.wirtschaftsschutz.info