There is a broad consensus that promoting competition may have a positive impact on limiting factors fuelling business related corruption and can contribute to foster a corruption free business environment. Establishing strong, independent and accountable competition authorities with adequate investigative, enforcement and regulatory powers is important to achieve this goal. The literature shows that effective competition authorities share a set of common features including a clear vision of the agency’s purpose and strategic priorities, an appropriate structure and transparent processes, sound case and project management systems and human resources practices as well as an effective monitoring and evaluation mechanism. The independence and accountability of the institution also needs to be ensured. Anti-corruption measures can be built up in the institution by promoting transparency and access to information on the agency’s operations and decisions, introducing the right set of staff