I can think of two that aren't: Young Living & doTERRA essential oil companies, and I'm sure that there are others, but the vast majority are scams... especially those that do not have a product capable of standing on its own without the "commissions" system.
Most of the people I know who have signed up with either of those EO companies have no interest in the commissions-side, and don't sign anyone up. They just take their wholesale discount on the oils they'd be using anyway, and call it good.