On the market for factoring services independent suppliers coexhist with companies affiliated with banking groups. The last ones can be oriented in their decision processes by the policies of their parent company, usually a bank. They could also benefit from synergies among the different units of the group. The main benefits are linked to cost reduction, better skill-based resources allocation and a higher amount of financial coverage. If such interdependencies are found and developed, factors belonging to banking groups could attain a competitive advantage towards independent intermediaries. To assess the impact of the group structure we have to evaluate the degree of substitutability between factoring and other financial services supplied by the group, the synergy effects that could arise in each step of the production and delivery processes and eventually organizational challenges faced by the group. In our analysis we find evidence of complementarity among factoring and other financial products, we consider the possibile sinergies in some steps of the production process and we propose a methodology to assess the level of group cohesion and the kind of control exercised by the parent company.