Diamond Antenna & Microwave Corporation

Diamond Antenna & Microwave Corporation, a for-profit manufacturer of radio frequency components based in Littleton, Massachusetts, operates as a prime contractor (94% of awards) delivering rotary couplers, rotary joints, waveguide assemblies, and related RF components to federal agencies through purchase orders, delivery orders, and indefinite delivery contracts, with no set-asides across the footprint — all work is full-and-open competition.

The vendor's customer concentration sits overwhelmingly with Navy and civilian aviation infrastructure. The top five funding agencies account for 62% of awards by count and 93% by combined potential value, anchored by Naval Sea Systems Command (120 awards, $29.9 million) and the Federal Aviation Administration Headquarters (39 awards, $29.4 million), with the National Oceanic and Atmospheric Administration (62 awards, $16.6 million) placing more orders in smaller dollar amounts. Navy Naval Supply Systems Command (29 awards, $4 million) and Naval Air Warfare Center (27 awards, $1.6 million) round out the active set. The two rankings diverge notably — NOAA places significant order volume relative to its dollar share, while FAA's dollar share is proportionally larger, reflecting higher unit values in aviation radar component procurements.

Diamond Antenna holds multiple single-award IDIQs anchoring the prime portfolio. A $7.07 million Naval Sea Systems Command indefinite delivery contract through September 2030 covers manufacture, qualification, inspection, and delivery of rotary couplers for the SPS-67(V)1 naval radar system, with two delivery orders issued to date ($91,410 and $262,440 for new manufacture). A $5.43 million NAVSEA IDIQ through July 2028 funds evaluation and repair of AN/SPQ-9B rotary joint and slip ring assemblies, with three delivery orders executed ($179,720, $179,720, $383,760). A $691,006 NAVSEA single-award IDIQ through June 2026 covers evaluation and repair of AN/SPS-67(V)1 rotary couplers, with four delivery orders issued. A $6.19 million FAA multiple-award indefinite delivery contract awarded November 2025 covers overhaul and repair of rotary couplers across TDWR, ASDE-3, ASR-9, MODE-S BOS, ASR-11, ARSR-1, ARSR-2, and FPS radar platforms. A $3.2 million NOAA single-award IDIQ through September 2027 funds overhaul of rotary joints for environmental and weather monitoring equipment. The top parent vehicles by task-order count include five unnamed IDIQs with between 17 and 20 task orders each and combined values ranging from $294 thousand to $1.9 million.

Representative prime work spans naval radar sustainment and FAA infrastructure. Recent awards include a $1.34 million Naval Supply Systems Command definitive contract (December 2025) for 16 units of rotary switches; a $413,600 Naval Supply Systems Command purchase order (December 2025) for repair of rotary joint SLP R; a $262,440 NAVSEA delivery order (February 2026) for SPS-67(V)1 rotary coupler new manufacture; and a $6.19 million FAA multiple-award IDIQ (November 2025) for rotary coupler overhaul and repair across multiple radar systems. NASA has placed orders for National Airspace System assets ($51,395 in March 2026 and $9,750 in May 2026); the Air Force Materiel Command awarded a $47,000 purchase order (March 2026) for repair of rotary couplers supporting the Multiple Threat Emitter System (MUTES) program. Activity has accelerated year over year, from 14 awards in 2022 to 48 awards in 2025, with 10 awards placed in the first five months of 2026. Twelve awards (combined potential value $3.2 million) face ultimate completion inside the next twenty-four months and therefore present recompete exposure.

In its subcontractor role (6% of awards), Diamond Antenna delivers rotary joints and RF components to prime contractors anchoring Navy and defense technology programs. Named primes include BAE Systems Technology Solutions & Services Inc. (instrumentation range support and AOOSS programs, rotary joint and coupler repair and NRE), L3 Technologies (submarine photonics masts, SRQ-4 radio terminal sets, manned/unmanned teaming hardware), General Dynamics Mission Systems (Littoral Combat Ship Independence Class engineering and life cycle support), Sierra Nevada Company (ACLS pedestals, rotary joints and pedestals), Raytheon Company (Sentinel radar life cycle support, secondary supplier development for MDA, naval surveillance application upgrade), Seacorp LLC (MMM production and engineering services, rotary joints and payload below-decks equipment), and Lockheed Martin (SBIRS WR-series rotary joint waveguide flight units). Sub work concentrates on RF component supply and non-recurring engineering.

The award footprint concentrates across NAICS 334417 (Other Electronic Component Manufacturing, 131 awards) and 334511 (Search, Detection, Navigation, Guidance, Aeronautical and Nautical System and Instrument Manufacturing, 81 awards), with secondary concentration in repair and maintenance (334419 and others). PSC-level concentration shows Antennas, Waveguides, and Related Equipment (170 awards) and Maintenance/Repair/Rebuild of Electrical and Electronic Equipment Components (70 awards) as the dominant categories. All work is full-and-open; Diamond Antenna competes across unrestricted federal procurements without set-aside designation, positioning it as a commercial-market supplier rather than a set-aside specialist.

Designs and manufactures microwave rotary couplers for antenna systems.