Allegro MicroSystems (Manchester)

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Micross Components, LLC	Manchester	Other Electronic Component Manufacturing 334419	● ACTIVE	0.0 KM
Xma Corporation	Manchester	Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing 334416	● ACTIVE	1.4 KM
Intelligent Manufacturing Solutions, LLC	Londonderry	Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418	● ACTIVE	2.0 KM
TRTechnical Research and Manufacturing INC	Bedford	Other Electronic Component Manufacturing 334419	◇ UNVERIFIED	1.5 KM
ECEpe CORP	Manchester	Commercial and Service Industry Machinery Manufacturing 333314	◐ LIKELY ACTIVE	1.8 KM

Every listed plant in Hillsborough County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 9 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.

EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.

• OSHA injury and illness reportsOPERATING
  Record 330467 · first seen DEC 2025 · last seen DEC 2025
• DOL Form 5500 retirement plan filingsOPERATING
  Record 223056180|NH|03103|955 perimeter rd · first seen DEC 2024 · last seen DEC 2024
• EPA Facility Registry ServiceEXISTENCE
  Record 110004107289 · first seen JAN 2012 · last seen JAN 2012

ALSO RECORDED ASALLEGRO MICROSYSTEMS

IN HILLSBOROUGH COUNTY68 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 29 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

EPA: ALLEGRO MICROSYSTEMS · JUL 2026

Street address

EPA: 955 PERIMETER RD · JUL 2026

City

EPA: MANCHESTER · JUL 2026

State

EPA: NH · JUL 2026

County (FIPS code)

EPA: 33011 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 42.934901271927,-71.446782649566 · JUL 2026 · ON THIS PAGE

EPA: 42.937115,-71.443645 · JUL 2026

Employees (band)

OSHA: 100-499 · DEC 2025

Retirement plan filing (Form 5500)

DOL: 687 active participants, plan year ending 2024-12-31, 2 plan(s) · DEC 2024

State business registrationSOURCES DISAGREE

CT SOTS: ALLEGRO MICROSYSTEMS, INC., registered with the Connecticut Secretary of the State; Corporation formed in Delaware; registered 2024-12-05; active, annual report filed 2025-12-01 · DEC 2025

OR SOS: ALLEGRO MICROSYSTEMS, LLC, registered with the Oregon Secretary of State, Corporation Division; Limited liability company formed in Delaware; registered 2019-06-25; active · JUN 2019

TX Comptroller: ALLEGRO MICROSYSTEMS, INC., registered with the Texas Comptroller of Public Accounts; Corporation; active