Plex Solutions, LLC

Plex Solutions, LLC, a Columbia, Maryland-based for-profit limited liability company, operates as a prime contractor and subcontractor delivering cloud architecture, cybersecurity engineering, IT systems design, and defense research and development services to Department of Defense and federal civilian agencies on full-and-open competition vehicles. The vendor holds no SBA set-aside designations and competes across unrestricted contracting vehicles; however, the award footprint is heavily tilted toward subcontracting (59% of recent awards), with most prime work concentrated on two large government-wide vehicles.

Plex Solutions' prime contract footprint centers on two major vehicles: the Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple-award IDIQ issued by the Missile Defense Agency in December 2025 with a $151 billion ceiling running through December 2035, and a GSA Federal Supply Schedule contract awarded in March 2025 with a $500 thousand ceiling spanning cloud, IT professional services, and cybersecurity labor categories through March 2030. The SHIELD vehicle procures multi-domain homeland defense systems addressing air, missile, space, cyber, and hybrid threats, with task orders supporting research and development, prototyping, systems engineering, weapon design, production, and test and evaluation across classified and unclassified programs. Plex Solutions received a $500 firm fixed-price initial delivery order under SHIELD in December 2025 for work in Huntsville, Alabama. The GSA Schedule contract covers 48 labor categories spanning cybersecurity, cloud computing, and IT domains, with hourly rates ranging from $123.05 (entry-level Cyber Software Engineer 1, requiring a bachelor's degree and three years of experience) to $229.72 (Cloud Architect 4, requiring a bachelor's degree and fifteen years of experience); no security-cleared roles are offered under this schedule.

Plex Solutions operates predominantly as a subcontractor, with 59% of recent awards flowing through prime relationships. The vendor subcontracts to Parsons Government Services on multiple cyber mission support and engineering services tasks, to Booz Allen Hamilton on Space Systems Command ground systems engineering and integration support and defense research tasks, to Mantech Advanced Systems International on computer systems design work, and to Chesapeake Technology International on 5G over-the-top digital first program support. The most substantial customer concentration by potential value sits with the Department of the Air Force Air Education and Training Command ($1 billion combined potential value across two awards), followed by GSA Federal Acquisition Service ($500 thousand), the Department of the Air Force Materiel Command Research Laboratory ($50 thousand), and the Department of the Navy Naval Sea Systems Command ($1 thousand). By award count, the vendor has worked with twelve distinct federal customer agencies, with the Air Force Space Command Space and Missile Systems Center leading at five awards. The vendor's recent award activity accelerated from two awards in 2021 to seven awards in 2024 and seven in 2025, generating $1 billion in combined potential value across 22 awards (prime and sub) with $198.8 million currently obligated. Plex Solutions holds positions on the Alliant II government-wide acquisition contract (8 task orders) and the One Acquisition Solution for Integrated Services vehicle (3 task orders), alongside the SHIELD and GSA Schedule vehicles. Capability categories span Computer Systems Design Services (8 awards), Engineering Services (5 awards), and Research and Development in the Physical, Engineering, and Life Sciences (5 awards). Service Contract Inventory reporting captures minimal activity — 2.4 FTEs delivered on one subcontract in FY2024 — reflecting the vendor's emerging profile and relatively small proportion of service-contract work in a portfolio heavily weighted toward fixed-price delivery orders and IDIQs.