There are pharmaceutical companies and biotech companies like Nestl , Monsanto, Novartis. I do not think there is any significant companies from developing countries that has a stake in giving intellectual property rights protection for life forms. Basically because the commercial interest in northern countries is to get as much as they can from the International Trade Agreement. Because of this, many of the conditions in the TRIPs Agreement are imposed on southern governments. The stakes for the southern governments is not TRIPs as it is fashioned now.
Southern governments have a stake in developing the convention on biological diversity.
Public and private research institutions also have a stake. Most public research institutions in African countries do research in genetic resources, mainly to increase crop production in the interest of farmers within their own countries. Private research institutions mainly have commercial interests. They are not very keen on the effects that these have on farmers rights. Universities also have a stake because they do research in various genetic resources.