Facility	City	Industry	Status	Distance
American Superconductor CORP	Ayer	Current-Carrying Wiring Device Manufacturing 335931	ACTIVE	3.1 KM
Diamond Antenna & Microwave Corporation	Littleton	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	ACTIVE	3.8 KM
Randolph & Baldwin, INC.	Ayer	All Other Miscellaneous Fabricated Metal Product Manufacturing 332999	LIKELY ACTIVE	3.7 KM
Jowa USA INC	Littleton	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	ACTIVE	4.7 KM
New Objective INC	Littleton	Analytical Laboratory Instrument Manufacturing 334516	ACTIVE	5.0 KM

Every listed plant in Middlesex County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds this plant, and 5 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 OSHA-OIS.

EPA Facility Registry ServiceEXISTENCE
Record 110070323696 · first seen SEP 2018 · last seen SEP 2018

IN MIDDLESEX COUNTY277 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 92 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: ASSOCIATED ENVIRONMENTAL SYSTEMS, INC. · OCT 2026
Street address: EPA: 31 WILLOW ROAD · OCT 2026
City: EPA: AYER · OCT 2026
State: EPA: MA · OCT 2026
Coordinates: EPA: 42.55554,-71.53918 · OCT 2026

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