KleyReX Internet Exchange Frankfurt - Internet Exchange which covers 6 locations within Frankfurt and offers some interesting peering partners. - http://www.kleyrex.net/
MAE Frankfurt - Operated by MCI, MAE Services provide public peering services for Internet Service Providers. - http://www.mae.net/fac/mae-frankfurt.htm
ECIX Berlin - The ECIX BER is a neutral exchange point in Berlin, operating a next generation exchange point for carriers and isps. - http://www.ber.ecix.de/
ECIX Düsseldorf - The ECIX DUS is a neutral exchange point in Düsseldorf, operating a next generation exchange point for carriers and isps. - http://www.dus.ecix.de/
Work-IX Hamburg, Germany - Internet Exchange which offers free peering. German. - http://www.work-ix.de/
N-IX Nürnberg Internet Exchange, Germany - Regional exchange point facility, located in Nürnberg, Germany. Only Gigabit-Ethernet Ports are being offered. Private VLANs and 3 Root-Nameservers for private peerings available. German. - http://www.n-ix.net/