Abstract: A relationship between a first business organization, which offers a plurality of services, and one or more second business organizations is established. Vendors that support business activity applications are identified. The business activity applications are associated with a plurality of business processes and technology. A business relationship is negotiated with the vendors using at least one of a bargaining power of the first business organization, an existing relationship between the first business organization and the vendors, a volume of potential business for the vendor based on an aggregation of needs of the second business organization, and brand recognition of the first business organization. A portal is maintained through which the second business organization accesses, using a single interface, the business activity applications.