European Patent Office http://www.epo.org/searching-for-patents/business.html
KnowledgeAgent GmbH http://www.knowledgeagent.de/
Institute for Competitive Intelligence http://www.competitive-intelligence.com/
DIE DENKFABRIK GmbH http://www.denkfabrik.de
Deutsches Competitive Intelligence Forum e.V. http://www.dcif.de
INFO+DATEN http://www.infoplusdaten.net
Journal of Intelligence Studies in Business https://ojs.hh.se/index.php/JISIB
SLA Competitive Intelligence Division http://ci.sla.org/
Deutsches Competitive Intelligence Forum http://dcif.de/