Harmonix Systems Inc.

Harmonix Systems Inc., doing business as Lumistar Inc., manufactures specialized telemetry, PCM (pulse-code modulation) frame synchronizer/decommutator equipment, and radio-frequency subsystems for Department of Defense platforms as a small business prime contractor (57% of recent awards) and as a subcontractor to major defense integrators. The San Marcos, California-based manufacturer competes predominantly under small-business set-asides on its prime work, with recent purchase orders split between Total Small Business and full-and-open designations.

Harmonix's customer concentration tilts toward defense platforms and test-and-evaluation commands. The top five funding customers account for 70% of recent awards by count, led by the Department of the Navy's Naval Air Systems Command (Naval Air Warfare Center) with 8 awards ($445 thousand combined potential value) and the Department of the Air Force with 5 awards ($488 thousand combined potential value). The Air Force Materiel Command adds another 4 awards ($284 thousand combined potential value) across its Lifecycle Management Center at Eglin Air Force Base and related commands. The two rankings align closely on customer identity — the Air Force and Navy together anchor the active footprint — but the Air Force edges the Navy slightly on potential-value share. Recent prime work includes a $38,745 Total Small Business purchase order from Air Combat Command (July 2026) for modular dual-stream PCM frame synchronizer/decommuter equipment delivered to Nellis AFB Nevada, a $196,860 sole-source purchase order from Air Force Materiel Command (September 2024) for five 2U rack-mount industrial-grade telemetry processing and simulation systems carrying Lumistar data processing software, and a $241,605 full-and-open purchase order from the Air Force (August 2024) for 1U single-stream PCM frame rack-mount assemblies.

Harmonix places work under Air Force indefinite-delivery contracts (3 task orders against FA867521D0002, 1 against FA252120D0005, and 1 against FA867219D0001) and a Navy basic ordering agreement (1 task order against N0001917G0002). Activity has accelerated since 2022 — one award per year in 2022 and 2023, ten in 2024, and six in 2025 — signaling growth in prime procurement, with the most recent award dated July 2026. In its subcontractor role, Harmonix delivers circuit card assemblies, wire and cable harnesses, and structural components to Raytheon Company on multiple platform-integration and weapons-system programs including Small Diameter Bomb Increment II test equipment and AIM-120D F-16 integration work, to Bell Textron Inc. on Future Vertical Lift aircraft development (aft spar inboard fitting assemblies and related subassemblies), and to BAE Systems Technology Solutions & Services Inc. on Instrumentation Range Support Program III transmitter equipment. The source lists Northrop Grumman Systems Corporation as a prior sub prime on target-system manufacturing. NAICS concentration reflects Harmonix's manufacturing focus — eight awards under Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing (334220), seven under Search, Detection, Navigation, Guidance and Aeronautical System manufacturing, and seven under Guided Missile and Space Vehicle Manufacturing.