Simpson Strong Tie Company INC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
USUnited States Pipe and Foundry Company Dba U.s. Pi	Union City	Iron Foundries 331511	◐ LIKELY ACTIVE	15.3 KM
E2e, Mfg LLC	Fremont	Machine Shops 332710	● ACTIVE	19.7 KM
CMCerro Metal Products Company	Newark	Copper Rolling, Drawing, Extruding, and Alloying 331421	◇ UNVERIFIED	20.6 KM
Sp Manufacturing INC	Livermore	Steel Foundries (except Investment) 331513	● ACTIVE	17.6 KM
MIMorton International INC	Newark	Spice and Extract Manufacturing 311942	◇ UNVERIFIED	21.6 KM

Every listed plant in Alameda County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 10 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 CA-ENVIROVIEW, RCRAINFO · EPA site type STATIONARY.

• DOL Form 5500 retirement plan filingsOPERATING
  Record 943196943|CA|94588|5956 w las positas blvd · first seen DEC 2024 · last seen DEC 2024
• EPA Facility Registry ServiceEXISTENCE
  Record 110065196996 · first seen OCT 2015 · last seen OCT 2015

IN ALAMEDA COUNTY22 other plants share this one’s industry (Foundries, NAICS 3315); 5 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: SIMPSON STRONG TIE COMPANY INC · OCT 2026

Street address

EPA: 5956 W LAS POSITAS BLVD · OCT 2026

City

EPA: PLEASANTON · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06001 · OCT 2026

Coordinates

EPA: 37.68297,-121.89851 · OCT 2026

Employees (band)

DOL: 500+ · DEC 2024

Retirement plan filing (Form 5500)

DOL: 2,922 active participants, plan year ending 2024-12-31, 3 plan(s) · DEC 2024

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026

State business registrationSOURCES DISAGREE

AK Corporations: Simpson Strong-Tie Company, Inc., registered with the Alaska Division of Corporations, Business and Professional Licensing; Corporation formed in California; registered 2021-12-29; active · DEC 2021

CO SOS: Simpson Strong-Tie Company Inc., registered with the Colorado Secretary of State; Corporation formed in California; registered 2007-09-11; active, annual report filed 2026-04-09 · APR 2026

CT SOTS: SIMPSON STRONG-TIE COMPANY INC., registered with the Connecticut Secretary of the State; Corporation formed in California; registered 1998-03-17; active, annual report filed 2026-03-30 · MAR 2026

DC Corporations: SIMPSON STRONG-TIE COMPANY Inc., registered with the District of Columbia Corporations Division; Corporation; registered 2007-08-30; active, annual report filed 2026-04-01 · APR 2026

Sunbiz: SIMPSON STRONG-TIE COMPANY INC., registered with the Florida Department of State, Division of Corporations; Corporation formed in California; registered 1992-04-20; active, annual report filed 2026-01-22 · JAN 2026

IA SOS: SIMPSON STRONG-TIE COMPANY INC., registered with the Iowa Secretary of State; registered 2007-08-30; active · AUG 2007

MS SOS: Simpson Strong-Tie Company Inc., registered with the Mississippi Secretary of State; Corporation; registered 2007-08-30; active · AUG 2007

NY DOS: SIMPSON STRONG-TIE COMPANY INC., registered with the New York Department of State, Division of Corporations; Corporation formed in California; registered 1990-08-13; active · AUG 1990

OR SOS: SIMPSON STRONG-TIE COMPANY INC., registered with the Oregon Secretary of State, Corporation Division; Corporation formed in California; registered 2007-08-14; active · AUG 2007

TX Comptroller: SIMPSON STRONG-TIE COMPANY, INC., registered with the Texas Comptroller of Public Accounts; Corporation; registered 1983-03-23; active · MAR 1983

VA SCC: Simpson Strong-Tie Company Inc., registered with the Virginia State Corporation Commission; Corporation formed in California; registered 2007-09-04; active · SEP 2007