Plexsys Interface Products, Inc.

Plexsys Interface Products, Inc., a for-profit Subchapter S corporation based in Camas, Washington, manufactures and operates modeling, simulation, cybersecurity, and live-virtual-constructive training systems as a prime contractor (82% of recent awards) and subcontractor to major defense primes. The vendor competes full-and-open across all recent awards with no set-aside designations, building its federal revenue on proprietary software platforms—ASCOT (Advanced Simulated Combat Operations Trainer), Sonomarc, SimWorks, CASEV Criterion, and VADAAR—paired with hardware, technical support, and systems engineering labor.

Plexsys's customer footprint is heavily concentrated in Air Force programs. By award count, the top five customers account for 73% of recent activity, led by the Air Force Materiel Command Lifecycle Management Center at Wright-Patterson Air Force Base (88 awards, $135.6 million combined potential value) and the United States Marine Corps (54 awards, $7.4 million combined potential value). By potential value, however, the Air Force Materiel Command Aeronautical Systems Center anchors the footprint at $1.08 billion across ten awards—a signal that larger, higher-ceiling contracts dominate the dollar volume despite lower award frequency. The Department of the Air Force broadly (50 awards, $954.6 million) and Air Combat Command (10 awards, $97 million) follow. The Marine Corps concentration by count masks a much smaller dollar profile, indicating many small sustainment orders for ASCOT preventative and basic maintenance rather than platform development.

Plexsys holds two large Air Force IDIQs and a recent entry into a $151 billion Missile Defense Agency vehicle. The Air Force Life Cycle Management Center Architecture and Integration Directorate awarded a $900 million multiple-award IDIQ on December 9, 2022, for engineering, design, and synthetic-environment development across multi-domain systems capabilities with a completion date of November 14, 2027. Plexsys also holds a $804,563 single-award Indefinite Delivery Contract with the Marine Corps (awarded August 12, 2022, through August 14, 2027) for ASCOT preventative and basic maintenance, which has generated four delivery orders totaling approximately $636,460. On December 29, 2025, the Missile Defense Agency awarded Plexsys a seat on the $151 billion Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple-award IDIQ running through December 28, 2035, with an initial firm-fixed-price delivery order for five hundred dollars. Across all vehicles, Plexsys's largest active task-order parent is the Indefinite Delivery Contract F3365798D0021 with 110 task orders valued at $71.1 million combined potential value. The GSA Multiple Award Schedule remains active (nine task orders, $8.7 million combined potential value), through which the vendor offers 48 hourly labor categories ranging from IT Asset Management at $67.85/hr to Information System Security Manager roles at $293.50/hr, all bachelor's-level education with two to seven years of experience and no security-clearance requirements.

Recent representative prime work includes a $90.9 million Air Combat Command definitive contract awarded February 1, 2025, for operation, maintenance, and hardware/software support of the E-3G Airborne Warning and Control System E-7A Wedgetail Mission Crew Simulator Block 40/45 and Distributed Operational Mission Simulator through April 30, 2029; a $2.158 million Air Force purchase order for FY25 J7 ASCOT 7 Services with performance in Camas, Washington through June 2, 2028; a $1.505 million Naval Air Warfare Center delivery order (total small business set-aside, the only set-aside in recent awards) for the ATG MAYPORT AND SAN DIEGO program under the GSA Multiple Award Schedule through November 11, 2028; and a $5.826 million Air Combat Command order for the Tinker Air Force Base CRC Next Generation Trainer simulator system through January 31, 2029. Smaller orders cover ASCOT maintenance, Sonomarc communications software support, and software license renewals across Air Force, Marine Corps, and Naval Air Warfare Center customers.

Plexsys operates predominantly as a prime but maintains a recurring subcontractor presence to large defense integrators. Across 52 subcontractor awards in the source portfolio, Booz Allen Hamilton is the dominant prime (13 named sub-awards spanning 2023–2025), primarily for the Service Solutions for Modernization Analysis Readiness Capability Threat and Training (SSMARTT) program and Stand-In Force Strategic Planning work, where Plexsys delivers commercial modeling and simulation software and LVC training readiness solutions. Lockheed Martin (7 sub-awards) engages Plexsys for Air Base Air Defense Battle Management Command and Control (ABAD BMC2) labor support and VADAAR subscriptions. Northrop Grumman (7 sub-awards) uses Plexsys software and services for Virtual Test and Training Center network sustainment and Distributed Mission Operation training. Salient Crgt (13 sub-awards), CAE USA, Science Applications International Corporation, HII Mission Technologies, Parsons Government Services, Boeing, and smaller primes round out the subcontractor footprint. Plexsys provides software licenses, technical services, system recording and after-action review software, and labor support across these arrangements.

Activity has grown materially over the past three years—11 awards in 2023 to 30 in 2024 and 26 in 2025—with only six awards (combined potential value $4.3 million) reaching ultimate completion inside the next twenty-four months, presenting minimal near-term recompete cliff pressure. SCI-reportable invoiced revenue totaled $40.4 million across prime service contracts (FY2022: $22.2 million across 44.7 FTEs; FY2024: $18.2 million across 35.9 FTEs), with zero reporting in FY2023 and FY2025, indicating intermittent large-contract performance rather than continuous flow. Government-paid hourly rates on SCI-reportable work ran a median of $252.83/hr, with the 10th percentile at $241.36/hr and the 90th percentile at $264.30/hr, reflecting mid-level systems engineering and security roles. Across SCI prime records, subcontractors performed zero percent of contractor hours, indicating Plexsys builds its own delivery teams on these engagements rather than relying on sub labor. The vendor's subsidiary Trusted Readiness Solutions LLC appears in corporate filings but carries no distinct award history in the source portfolio. Combined potential value across all Plexsys awards totals $2.42 billion against $367.5 million obligated, positioning the company as a mid-tier simulation and training systems provider with significant Air Force platform dependencies and exposure to the Advanced Battle Management System modernization roadmap.

ASCOT V RADAR SIMULATOR; AWACS MISSION TRAINING CENTERS (MTC); DISTRIBUTED MISSION TRAINING (DMT); DISTRIBUTED INTERACTIVE SIMULATION; WARGAMING EXERCISE SCENARIO DESIGN; NETWORK ENGINEERING; SIMULATION INTEGRATION; MODELING & SIMULATION