According to the CGEIT certification guide, the business sponsor is primarily accountable for delivering the benefits of an IT-enabled investment program to the enterprise. The business sponsor is the person who has the authority and responsibility to initiate, influence and approve the business objectives and requirements of the program. The business sponsor also ensures that the program aligns with the enterprise strategy and delivers value to the enterprise1. The program manager, the IT steering committee chair and the CIO are responsible for supporting the business sponsor in delivering the benefits, but they are not primarily accountable for them2. References :=

CGEIT certification guide, domain 4: Benefits Realization, section 4.1: Benefits Governance, page 137.

CGEIT certification guide, domain 4: Benefits Realization, section 4.2: Benefits Delivery Life Cycle, page 140.