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Plug Power Concord Electrolyzers

45 Winthrop Street, Concord, MA 01742

LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

All Other Miscellaneous Electrical Equipment and Component Manufacturing335999

Where it is

42.46034, -71.39666 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

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Linden Photonics, INC.WestfordFiber Optic Cable Manufacturing
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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, NPDES, RCRAINFO · EPA site type STATIONARY.

  • OSHA injury and illness reportsOPERATING
    Record 1428019 · first seen DEC 2025 · last seen DEC 2025
  • EPA Facility Registry ServiceEXISTENCE
    Record 110071131977 · first seen OCT 2021 · last seen OCT 2021

ALSO RECORDED ASPLUG POWER ELECTROLYZERS

IN MIDDLESEX COUNTY50 other plants share this one’s industry (Other Electrical Equipment and Component Manufacturing, NAICS 3359); 16 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: PLUG POWER ELECTROLYZERS · JUL 2026
Street address
EPA: 45 WINTHROP ST · JUL 2026
City
EPA: CONCORD · JUL 2026
State
EPA: MA · JUL 2026
County (FIPS code)
EPA: 25017 · SEP 2026
Coordinates
Census geocoder: 42.460342490169,-71.396664881726 · JUL 2026 · ON THIS PAGE
EPA: 42.46029,-71.39653 · JUL 2026 · ON THIS PAGE
Employees (band)
OSHA: 20-99 · DEC 2025

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