Nsi-Mi Technologies Inc.

Nsi-Mi Technologies Inc., a Suwanee, Georgia-based subsidiary of Ametek Inc., manufactures and services RF and microwave antenna test and measurement equipment and systems as a prime contractor (80% of recent awards) and subcontractor in full-and-open federal procurements. The company competes without set-aside designation across defense and civilian agencies, with no SBA certifications present in the source. Nsi-Mi operates as a manufacturer of goods and precision instrumentation under primary NAICS 334515 (Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals), with the parent Ametek Inc. providing corporate backing and access to specialized electronic components and electromechanical device capabilities.

Nsi-Mi's federal work centers on antenna systems maintenance, calibration, repair, and replacement; RF and microwave test facility support; and design-build of anechoic chambers and near-field scanner systems. Concrete examples include a $6.87 million Army definitive contract awarded in October 2024 for fabrication, delivery, and installation of an anechoic near-field test chamber at Letterkenny Army Depot (completion October 2027); a $2 million Air Force definitive contract awarded in October 2024 for five-year calibration and preventive maintenance of compact antenna and radome test facilities at Robins Air Force Base (completion October 2029); a $811.5 thousand Air Force purchase order awarded in February 2023 for B-1B Range RF equipment calibration at Tinker Air Force Base (completion February 2028); and a $525.8 thousand Navy definitive contract awarded in April 2022 for Compact Antenna Test Range tech-care maintenance at Webster Outlying Field (completion April 2027). Nsi-Mi also holds sole-source awards from NASA for dual-polarized waveguide antenna feeds, pattern calibration services, and equipment maintenance at Goddard Space Flight Center, and has supplied intelligent measurement controllers and near-field scanner equipment to the Office of Naval Research.

Customer concentration reflects a heavily defense-oriented base. The top five funding agencies account for 46% of recent awards by count, led by NASA's Shared Services Center (13 awards, $631 thousand combined potential value), the FBI Headquarters Division (10 awards, $233 thousand), Naval Air Systems Command and Naval Air Warfare Center (8 awards, $896 thousand), Army Communications Electronics Command (8 awards, $3.6 million), and Air Force Warner Robins Air Logistics Complex (8 awards, $10.4 million). By potential-value concentration, the distribution tilts toward Air Force and Navy logistics: Warner Robins Air Logistics Complex alone represents $10.4 million (31% of combined potential value), Naval Air Systems Command carries $4.2 million, and Army Communications Electronics Command anchors $3.6 million. Nsi-Mi serves 28 distinct federal customer agencies, reflecting broad-based placement across defense logistics hubs and research centers.

Nsi-Mi places task orders under five named vehicles: Basic Ordering Agreement FA8620-21-G-4027 (3 task orders), Information Analysis Center Multiple-Award Contract (1 task order), and three Navy indefinite delivery contracts (1 task order each). These vehicles are modest in count relative to overall award volume; most recent work flows through direct purchase orders rather than standing IDVs, suggesting Nsi-Mi competes in tactical procurements against individual logistics complexes rather than holding multi-billion-dollar GWAC seats. Activity accelerated from 4 awards in 2022 to 22 in 2024, then declined to 9 in 2025 and 3 through February 2026, a trajectory suggesting either contract consolidation or cyclical funding in antenna sustainment. Four awards with combined potential value of $8.7 million face ultimate completion inside the next twenty-four months, representing near-term recompete exposure.

As a subcontractor, Nsi-Mi supplies RF and microwave test equipment and antenna measurement capabilities to major defense primes. Recent sub engagements include radar processor maintenance for Raytheon (NGJ-MB Low Rate Initial Production equipment, March 2025); AMRAAM production support for Raytheon (September 2025); B-1 platform support for Northrop Grumman (March 2025); BIG SAFARI aircraft manufacturing support for L3Harris Technologies (January 2026); and near-field scanner research and development for Mantech TSG-2 Joint Venture at Naval Surface Warfare Center Crane (February 2026). Sub work typically involves precision measurement equipment services and calibration support embedded in weapons-system and aircraft sustainment programs. Nsi-Mi's corporate parent, Ametek Inc., holds numerous federal contracts and grants as a prime, including indefinite delivery vehicles with civilian and defense agencies, providing Nsi-Mi access to broader teaming networks and government relationships that complement its specialized equipment-manufacturer posture.