Lesser known nute companies?

Hey yinz, I am looking to experiment with some nutes besides the ones well known companies put out (most of which I have used for that matter). So, what are some lesser known companies that you have used/heard about?

yep just started a thread to let everyone know,greenleafnutrients, its working out great,hella cheap too,Im using the logic grow-generic of sensi grow now,plants look great,will be using the generic connossuier next