Facility	City	Industry	Status	Distance
Patriot Worldwide, INC.	Marlborough	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	ACTIVE	2.6 KM
The Entwistle Company LLC	Hudson	Machine Shops 332710	ACTIVE	2.7 KM
Hottinger Bruel & Kjaer INC.	Marlborough	Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515	ACTIVE	3.0 KM
Ipg Photonics Corporation	Marlborough	Machine Tool Manufacturing 333517	ACTIVE	3.2 KM
Marlborough	Marlborough	Industrial Gas Manufacturing 325120	LIKELY ACTIVE	3.8 KM

Every listed plant in Middlesex County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 7 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 AIR, MA-EPICS, NPDES, RCRAINFO, TRIS.

EPA ECHO compliance recordsOPERATING
first seen AUG 2025 · last seen AUG 2025
EPA Facility Registry ServiceEXISTENCE
Record 110070384244 · first seen NOV 2018 · last seen NOV 2018

IN MIDDLESEX COUNTY57 other plants share this one’s industry (Other General Purpose Machinery Manufacturing, NAICS 3339); 21 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: REPLIGEN CORPORATION · OCT 2026
Street address: EPA: 111 LOCKE DR · OCT 2026
City: EPA: MARLBOROUGH · OCT 2026
State: EPA: MA · OCT 2026
County (FIPS code): EPA: 25017 · OCT 2026
Coordinates: EPA: 42.34958,-71.57998 · OCT 2026
Hazardous waste generator (RCRA): EPA ECHO: LQG · OCT 2026

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