What are the most common PMO stakeholders?

The most common stakeholders of a Project Management Office (PMO) are the internal groups directly involved in or affected by the organization's project delivery capability. This core group includes: Upper management: They sponsor the PMO, rely on it for strategic alignment and portfolio reporting, and are key decision-makers. Project managers: They are primary customers of the PMO, utilizing its methodologies, tools, and support services. Functional managers: They are crucial stakeholders as they provide and manage the resources (i.e., project team members) allocated to projects. Project team members: They are directly impacted by the PMO's standards, processes, and tools in their daily work. This combination represents the complete internal ecosystem that a PMO is established to serve and govern.

A. External suppliers are stakeholders of specific projects, not typically primary stakeholders of the internal PMO itself.
C. External clients are stakeholders of a project's final product or service, not the internal PMO's governance framework.
D. "All other employees" is overly broad; many employees may have no direct interaction with or stake in the PMO's functions.

1. Hill, G. M. (2013). The Complete Project Management Office Handbook. CRC Press. In Chapter 4, "PMO Stakeholders," the author explicitly identifies the primary stakeholder groups as senior management, project managers, functional managers, and project team members, detailing the PMO's relationship and responsibilities to each.

2. Aubry, M., & Hobbs, B. (2011). A fresh look at the contribution of project management offices (PMOs) to organizational performance. Project Management Journal, 42(1), 3-16. This paper analyzes the PMO's value proposition, which is realized through its interactions with key internal stakeholders, including project managers who are served by the PMO and senior executives who sponsor it. (DOI: https://doi.org/10.1002/pmj.20213)

3. Project Management Institute. (2017). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) – Sixth Edition. Section 2.3, "Role of the Project Management Office," describes the PMO as an organizational structure that standardizes governance and supports project managers. This inherently positions project managers, their teams, their resource managers (functional managers), and the leadership they report to (upper management) as the primary stakeholders.