This is a list of websites to the currently 64 active roller ski brands that I am aware of. If you in this list miss a brand you know, please inform me via e-mail. Some of these are solely or mainly roller ski brands, and others also have accessories or other types of sports equipment. Some are very big enterprises like Fischer, and some are much smaller like AE Produkter. Some of them have hardware production of a completely different kind.
http://www.blacktrackskis.se (This address redirects to https://tictail.com/ where one has to search for Blacktrack. The direct address is https://tictail.com/blacktrackskis/blacktrack-nordic-rollerski)
http://www.nordic-motion.com (The roller skis are produced by AE Produkter)
http://www.skirol.ru/ (Lynx and Selekta)