Commonwealth Fusion Systems LLC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
MSMilpitas Site	Milpitas	Semiconductor and Related Device Manufacturing 334413	◐ LIKELY ACTIVE	0.1 KM
LLLeanteq LLC	Milpitas	Industrial Machinery Manufacturing 333249	◐ LIKELY ACTIVE	0.4 KM
Teledyne Defense Electronics, LLC	Milpitas	Semiconductor and Related Device Manufacturing 334413	● ACTIVE	0.4 KM
ADAnalog Devices, INC	Milpitas	Semiconductor and Related Device Manufacturing 334413	◇ UNVERIFIED	0.6 KM
FCFabri-tech Components, Inc	Milpitas	Other Electronic Component Manufacturing 334419	◐ LIKELY ACTIVE	0.6 KM

Every listed plant in Santa Clara County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds 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 RCRAINFO · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110071136009 · first seen OCT 2021 · last seen OCT 2021

IN SANTA CLARA COUNTY823 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 128 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: COMMONWEALTH FUSION SYSTEMS LLC · OCT 2026

Street address

EPA: 840 TASMAN DR · OCT 2026

City

EPA: MILPITAS · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06085 · OCT 2026

Coordinates

EPA: 37.411414,-121.919753 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: SQG · OCT 2026