Facility	City	Industry	Status	Distance
Wells Fargo	Alameda	All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999	UNVERIFIED	17.1 KM
Marble City Company	san Carlos, CA	Cut Stone and Stone Product Manufacturing 327991	LIKELY ACTIVE	18.9 KM
Rs Hughes CO INC	San Leandro	Hardware Manufacturing 332510	ACTIVE	20.1 KM
Florence & New Italian Art Company	Hayward	Pottery, Ceramics, and Plumbing Fixture Manufacturing 327110	UNVERIFIED	25.7 KM
Micronized Ultra Tech INC	Richmond	Ground or Treated Mineral and Earth Manufacturing 327992	LIKELY ACTIVE	32.9 KM

Every listed plant in San Mateo County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 4 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.

OSHA injury and illness reportsOPERATING
Record 815771 · first seen DEC 2025 · last seen DEC 2025
DOL Form 5500 retirement plan filingsOPERATING
Record 460959441|CA|94080|322 e grand ave · first seen DEC 2024 · last seen DEC 2024

IN SAN MATEO COUNTY11 other plants share this one’s industry (Other Nonmetallic Mineral Product Manufacturing, NAICS 3279); 1 of them has 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.

Coordinates: Census geocoder: 37.651641554499,-122.389735959908 · JUL 2026
Employees (band): OSHA: 20-99 · DEC 2025
Retirement plan filing (Form 5500): DOL: 397 active participants, plan year ending 2024-12-31, 2 plan(s) · DEC 2024
State business registration: TX Comptroller: DIAMOND FOUNDRY, INC., registered with the Texas Comptroller of Public Accounts; Corporation; active

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