Diamond Antenna & Microwave Corporation

Diamond Antenna & Microwave Corporation, a for-profit manufacturer of radio frequency components and rotary joints based in Littleton, Massachusetts, operates as a prime contractor (94% of recent awards) and subcontractor on federal contracts for design, production, evaluation, repair, and manufacturing of specialized RF components including rotary couplers, rotary joints, waveguide assemblies, and slip ring assemblies. The company is self-certified as a small disadvantaged business and competes predominantly full-and-open, with no recurring set-aside posture across its prime footprint.

Diamond Antenna's customer concentration is heavily weighted toward naval and civilian aviation customers. The top five agencies by award count account for 62% of total awards, led by the Department of the Navy Naval Sea Systems Command (122 awards, $30.3 million combined potential value) and the Federal Aviation Administration (41 awards, $29.7 million). By potential value, NAVSEA and FAA dominate the top three, followed by the National Oceanic and Atmospheric Administration (62 awards, $16.6 million), Naval Supply Systems Command (30 awards, $4 million), and Naval Air Warfare Center (28 awards, $1.9 million). The concentration reflects Diamond Antenna's specialization in naval radar platforms and FAA airspace system support — the AN/SPS-67(V)1, AN/SPQ-9B, and AN/SPS-48E systems appear repeatedly across the award histories.

Recent prime activity shows 17 awards in 2026 (through early September), 49 in 2025, and 18 in 2024, representing growth through 2025 followed by a partial-year 2026 snapshot. Diamond Antenna holds five principal IDIQs: a $7.07 million single-award NAVSEA indefinite delivery contract for SPS-67(V)1 rotary coupler manufacture and qualification through September 2030; a $5.43 million single-award NAVSEA IDC for AN/SPQ-9B rotary joint and slip ring evaluation and repair through July 2028; a $6.19 million multiple-award FAA IDC for overhaul and repair of rotary couplers across eight FAA radar platforms through November 2027; a $3.2 million single-award NOAA IDC for rotary joint overhaul through September 2027; and a $691 thousand single-award NAVSEA IDC for AN/SPS-67(V)1 evaluation and repair through June 2026. Task orders placed against these vehicles range from tens of thousands to low hundreds of thousands per delivery order. Fourteen awards with ultimate completion dates in the next twenty-four months carry combined potential value of $3.5 million, representing recompete exposure concentrated in the NAVSEA and FAA vehicle base.

Representative prime work includes a $1.34 million Naval Supply Systems Command definitive contract awarded December 2025 for 16 units of rotary switches; a $383.76 million NAVSEA delivery order (July 2025) for evaluation and standard repair of AN/SPQ-9B rotary joints and slip rings; a $262.44 thousand NAVSEA delivery order (February 2026) for SPS-67(V)1 rotary coupler new manufacture; and a $206.62 thousand NOAA delivery order (June 2022) for repair and reconditioning of twenty azimuth rotary joints. Work is performed at Diamond Antenna's Littleton, Massachusetts facility, with operations extending to Woburn, Massachusetts for some legacy contracts.

Diamond Antenna subcontracts to defense primes including BAE Systems Technology Solutions & Services (Instrumentation Range Support Program III, rotary joint and fiber cable assembly work), L3 Technologies (AN/SRQ-4 radio terminal sets, submarine photonics masts, manned/unmanned teaming programs), Sierra Nevada Company (ACLS pedestals, rotary joint components), General Dynamics Mission Systems (Littoral Combat Ship independence-class lifecycle support), Raytheon Company (A3 Sentinel radar lifecycle support, secondary supplier development), and Seacorp LLC (payload equipment for naval platforms). Subcontract awards are concentrated in rotary joint supply and RF component manufacturing for complex defense platforms, with recent sub awards ranging from tens of thousands to low hundreds of thousands in value.

The vendor's primary NAICS categories are Other Electronic Component Manufacturing (132 awards) and Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (83 awards), with PSC codes anchored in Antennas, Waveguides, and Related Equipment (175 awards) and radar system components. Combined potential value across all 463 awards (prime and sub) is $89 million with $40.6 million obligated to date. The company holds no awarded federal contract vehicles or GWAC positions beyond its five single-award and multiple-award IDCs, competing primarily through task orders and direct purchases against existing indefinite delivery contracts with NAVSEA, FAA, NOAA, and Naval Supply Systems Command.

Designs and manufactures microwave rotary couplers for antenna systems.