I think you cannot give primary flight training in experimental aircraft. Definitely not for hire. But you can give transition training in experimental aircraft and you can do it for hire. Presumably for builders who want to learn to fly their own aircraft.
There may be a loophole for people who are building/ contributed to he building of an aircraft.
Before you sign up students who hope to end up learnign to fly in the airplane, you should find out exactly how this could work.