I am hosting a tournament in my highschool and was wondering if anyone knew any brands or companys that i could get a sponsorship from.
You could ask local badminton clubs, like some of my local tournaments are sponsored by them as well.
You "could" get sponsorship from any company in the world..... If you can convince them to do so. What are you looking for? money,shuttles, prizes?? You could email any badminton brand representative in your region and ask them for stuff(yonex,victor, forza etc etc etc). Any local badminton retailer also(maybe even online retailer) they may get some more business from it. Failing that just try and convince any businesses, someone you know, must know someone, that has a business.
