Diamond Antenna & Microwave Corporation

What they make

• RF rotary joints
• electro-mechanical devices
• signals
• rotational interface
• coaxial lines
• subsystems
• air traffic control
• military
• satellite communications

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Open positions

Openings read from Diamond Antenna & Microwave Corporation’s own job board on Paylocity, last checked OCT 30, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

• MANUFACTURING TECHNICIAN II
  LITTLETON, MA, USA · posted OCT 29, 2026
• Applications Engineer
  LITTLETON, MA, USA · posted OCT 29, 2026
• QUALITY INSPECTOR III
  LITTLETON, MA, USA · posted OCT 22, 2026

• PROGRAM MANAGER
  Brockton, MA, USA · posted OCT 29, 2026
• Finance and Accounting Manager - Brockton
  Brockton, MA, USA · posted OCT 29, 2026
• ELECTRICAL RF ENGINEER IV
  Brockton, MA, USA · posted OCT 22, 2026

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Jowa USA INC	Littleton	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	● ACTIVE	1.0 KM
New Objective INC	Littleton	Analytical Laboratory Instrument Manufacturing 334516	● ACTIVE	1.2 KM
Odic, INC	Littleton	Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515	● ACTIVE	1.4 KM
MSMaterials Systems INC	Littleton	Electromedical and Electrotherapeutic Apparatus Manufacturing 334510	◐ LIKELY ACTIVE	4.0 KM
Boxboro Systems LLC	Boxborough	Other Measuring and Controlling Device Manufacturing 334519	● ACTIVE	4.2 KM

Every listed plant in Middlesex County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 12 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record ZGD2UYAN5WC9 · first seen JAN 2026 · last seen JAN 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 043247749|MA|01460|59 porter rd · first seen AUG 2025 · last seen AUG 2025
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record MA|littleton|59 porter rd · first seen JAN 2021 · last seen JAN 2021

ALSO RECORDED ASDIAMOND-ROLTRAN LLC

IN MIDDLESEX COUNTY277 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 91 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

SAM.gov: DIAMOND ANTENNA & MICROWAVE CORPORATION · JAN 2026

Street address

SAM.gov: 59 PORTER RD · JAN 2026

City

SAM.gov: LITTLETON · JAN 2026

State

SAM.gov: MA · JAN 2026

Coordinates

Census geocoder: 42.527116658034,-71.514474068906 · JUL 2026

Employees (band)

DOL: 20-99 · AUG 2025

Website

SAM.gov: http://www.diamondantenna.com · JAN 2026

Year established

Company website: 1956 · AUG 2026

CAGE code

SAM.gov: 01882 · JAN 2026

Retirement plan filing (Form 5500)

DOL: 67 active participants, plan year ending 2025-08-31, 2 plan(s) · AUG 2025

PPP loan

SBA PPP: PPP loan x4, approved 2021-01-30, 9 jobs reported · JAN 2021

SAM registration expires

SAM.gov: 2027-01-07 · JAN 2026