The creation of cooperatives dates as far back as the colonial period. They are today governed by the Uniform Act of 15 December 2010. Affranchised under the administrative guardianship in 1990, they have become democratic and are slowly evolving towards the status of companies, but are different from sole proprietorship and active partnership companies. As the Uniform Act authorizes every individual, irrespective of nationality, to establish cooperatives, an activity within the OHADA zone, and as the article 296 especially defines the status of the permanent representative of cooperatives, foreigners, including from the Western World, can exercise this activity in the OHADA zone. Due to their dynamic nature, cooperatives, with regard to the Canadian Law, can provide any sort of products and services and can also accomplish other commercial acts. Taking both laws into consideration, cooperatives are largely defiant to nullity. As such, what is the scope of the nullity of these companies and their acts? This analysis answers the above question in showing that the domain of nullity today is ambiguously restraint by the Uniform Act and the practice which favours regularisation of certain null acts concerning cooperative companies.