From the 1970’s, there has been almost a half-century of development of employee-owned firms. There has been a wide variety of legal/capital structures that have been tried but too little analysis of which legal forms work or don’t work over the longer term, e.g., the transition from one generation to the next generation of employee-owners. This paper provides a critical analysis of the major forms. The emphasis is the lack of learning between the different forms. The same problems keep recurring even though solutions are known.