Capacity building is a key activity in ensuring regulatory agencies can fulfil their mandate effectively. Without adequate institutional structures, processes and professional human resources, regulatory agencies are unlikely to be able to act in a credible manner. Lack of credibility impacts adversely on overall effectiveness by diminishing the relationships between the regulator and stakeholders in the regulated sector. This paper provides an overview of the collaboration that has taken place between ICT regulators in the 14 Member States of the Southern Africa Development Community. It indicates the initial approach used and the results that have been achieved through collaboration.