| Rank | Citation Source | Web Address (URL) |
| 1 | Google My Business | https://business.google.com/ |
| 2 | Bing Places | https://www.bingplaces.com/ |
| 3 | Apple Maps | https://mapsconnect.apple.com/ |
| 4 | Infobel | http://infobel.com/ |
| 5 | DasÖrtliche | http://www.dasoertliche.de/ |
| 6 | GelbeSeiten | https://www.gelbeseiten.de/ |
| 7 | https://www.facebook.com/ | |
| 8 | Factual | http://www.factual.com/ |
| 9 | 11880.com | https://www.11880.com/ |
| 10 | Foursquare | https://foursquare.com/ |
| 11 | Yelp | https://www.yelp.de/ |
| 12 | Kennstdueinen | https://www.kennstdueinen.de/ |
| 13 | Stadtbranchenbuch | https://www.stadtbranchenbuch.com/ |
| 14 | GoYellow | https://www.goyellow.de/ |
| 15 | GoLocal | https://www.golocal.de/ |
| 16 | DasTelefonbuch | https://www.dastelefonbuch.de/ |
| 17 | YellowMap | http://www.yellowmap.de/ |
| 18 | Cylex | http://web2.cylex.de/ |
| 19 | Europages | https://www.europages.de/ |
| 20 | HotFrog | https://www.hotfrog.de/ |
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