Europe:
https://www.frisbeewinkel.nl/ - ships anywhere - Hero, Hyperflite, K9-discs, Frisbeescape, Eurablend, MamaDiscs
https://www.frisbeeshop.com/ - ships anywhere - Hero, Hyperflite, Eurodisc, Dogobie
https://dogfrisbee.shop
http://www.borderline-shop.com
http://www.dogfrisbee.pl
http://www.flyemhigh.nl
Manufacturers in Europe
https://eshop.czechblack.com/en/ - czechblack, Hero, Trixie,
https://www.k9-disc.com/ - K9-discs
https://www.eurodisc.biz - Eurodiscs
https://www.mamadisc.com/ - MamaDiscs
https://www.frisbeescape.com/en/ - Frisbeescape
https://www.latitude64.se/ - Bite
Others:
http://www.discsporteurope.com
https://discsport.eu/
https://webshop.iceborders.nl/en/
http://www.amazon.de - Hyperflite, Eurodiscs and others