I am curious, would like to list all the badminton trade that exists, here is my list : yonex, winex, forza, wilson, head, oliver, karakal, pacific, fischer, kason, kimoni, kawasaki, blacknight, carlton, trump, tactic, apacs, goodsport, kennex, prince, mizuno, gosen, victor, mmoa, sotx, rsl, lafleche, babolat, toalson, bridgestone.
the list can be endless, examples of a few more are: Hi-Qua, Fleet, Fukuda, DHS (Double-Happiness), Astec, Protech, Kimony (the original Kimony, NOT Kimoni), JooBong, etc.. etc.. etc.. and many many many many many small brands you have never heard of before but exist: A-Trump, Euro, YT (Ying Tian), Silver......
winstonchan is right. There are loads of badminton brands some of which pop up and disappear after a year or so. Powerplay was a UK brand which was around in 2004 and has now disappeared. Pointfore is still around I think...and that's just two small brands in the UK, never mind the squillions in Asia What is your objective?
* Hart * Reinforced Speed(RS) I'll add more should I remember what's not on the list. I believe you should edit the list -_-x... It's hard to see among those troublesome lines... This is a good idea, since we will have some hopes when searching a brand on the internet ... (At least it would be found in BC xD).