PFM SUPPORTING ESTABLISHMENT SYSTEMS
The mission of Portfolio Manager Supporting Establishment Systems (PfM SES) is to deliver high-quality, effective information technology (IT) solutions in a timely and efficient manner.
Program Managers (PM) within PfM SES include:
- PM Networks & Infrastructure
- PM Applications
- PM Customer Support & Strategic Sourcing 
Marine Corps Systems Command, 2018 
PM Networks & Infrastructure
Program Manager Network & Infrastructure provides the Marine Air-Ground Task Force (MAGTF) with networks and infrastructure equipment for the Marine Corps Enterprise Network. From ground combat, aviation, and command and control, to logistics, intelligence and force protection – the MAGTF relies on secure, reliable and effective networks to conduct its warfighting mission.
Program Manager Applications develops and maintains enterprise Marine Corps applications and services on the Marine Corps Enterprise Network.
PM Customer Support & Strategic Sourcing
Program Manager Customer Support & Strategic Sourcing (PM CS&SS) provides and manages enterprise-level contracts that support Marine Corps Enterprise Networks. The Marine Corps requires information technology services and networks 24/7 in an increasingly integrated environment. 
Updated by Kristin Stiner, March 2020