Verified Nov 2026
Metal Fabrication
·
Pleasanton, California
·
Since 1956
Simpson Strong-Tie, headquartered in Pleasanton, California, designs and manufactures structural connectors, fasteners, anchors, and lateral-force-resisting systems for wood, concrete, steel, and masonry construction. Founded in 1956, the company employs roughly 5,000 to 10,000 people and is a subsidiary of Simpson Manufacturing Co., Inc. Its products serve the construction, plumbing-hardware, renewable-energy, automotive, and industrial equipment sectors. In January 2026, the company opened a 500,000-square-foot manufacturing facility in Gallatin, Tennessee.
Simpson Strong-Tie at a glance
Revenue
$1-5B
Est. band
Employees
5,000-10,000
Founded
1956
Headquarters
Pleasanton, California
Certifications
ISO 14001 · ISO 9001
Import activity
13794
Industries
Automotive
Electric Vehicles
Construction
Plumbing & Hardware
Renewable Energy
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
13794
Named foreign suppliers
50
Top origins
Taiwan · China · Belgium · South Korea
Shared foreign counterparties do not establish that these companies buy from Simpson Strong-Tie.
What this tells a buyer
Simpson Strong-Tie opened a 500,000-square-foot manufacturing facility in Gallatin, Tennessee, on record as of January 15, 2026, and announced further expansion plans in Texas in October 2026.
The company holds ISO 9001 and ISO 14001 certifications and is listed in its public materials as offering structural connectors, anchors, and fastening systems.
As a privately held subsidiary of Simpson Manufacturing Co., Inc., the company reports an estimated revenue band of $1 to 5 billion.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
70 years in operation (founded 1956).
Holds ISO 14001, ISO 9001 certification(s) per public sources.
Overview
Simpson Strong-Tie, headquartered in Pleasanton, California, designs and manufactures structural connectors, fasteners, anchors, and lateral-force-resisting systems for wood, concrete, steel, and masonry construction. Founded in 1956, the company employs roughly 5,000 to 10,000 people and is a subsidiary of Simpson Manufacturing Co., Inc. Its products serve the construction, plumbing-hardware, renewable-energy, automotive, and industrial equipment sectors. In January 2026, the company opened a 500,000-square-foot manufacturing facility in Gallatin, Tennessee.
At a glance
Attribute | Detail |
|---|---|
Founded | 1956 |
Headquarters | Pleasanton, California |
Employees | 5,000-10,000 |
Revenue | $1-5B (estimated) |
Primary capability | Metal Fabrication |
Certifications | ISO 14001 · ISO 9001 |
What Simpson Strong-Tie makes
The company holds ISO 9001 and ISO 14001 certifications and is listed in its public materials as offering structural connectors, anchors, and fastening systems.
Products and capabilities described on the company's own site include Steel, LED, Connector (source: strongtie.com).
Certifications
Simpson Strong-Tie is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 14001 — sp-reinforcement.eu
ISO 9001 — strongtie.co.uk
Trade and customs footprint
Simpson Strong-Tie opened a 500,000-square-foot manufacturing facility in Gallatin, Tennessee, on record as of January 15, 2026, and announced further expansion plans in Texas in October 2026. US customs bill-of-lading records list 13794 inbound shipments across 50 foreign suppliers, with top origins including Taiwan · China · Belgium · South Korea.
Latest developments
2026-10-29 — Simpson Strong-Tie invests $19 million on Fulton expansion | Callaway County | komu.com (komu.com)
2026-10-21 — Simpson Strong-Tie plans to expand structural connector manufacturing facility in Texas | Plant Services (plantservices.com)
2026-10-09 — Simpson Strong-Tie breaks ground on McKinney expansion | McKinney | Community Impact (communityimpact.com)
2026-01-15 — Simpson Strong-Tie Celebrates Grand Opening of New, 500,000-Square-Foot Manufacturing Facility in Gallatin, Tennessee (strongtie.com)
2025-08-12 — Simpson Strong-Tie expands in Chandler, signs a 67,000 SF lease | City of Chandler (chandleraz.gov)
2025-03-19 — Simpson Strong-Tie Opens New Distribution Center in Las Vegas (strongtie.com)
Facilities
Simpson Strong-Tie is headquartered in Pleasanton, California. Public sources also reference these locations:
Gallatin, Tennessee — strongtie.com
Texas — plantservices.com
Company details
As a privately held subsidiary of Simpson Manufacturing Co., Inc., the company reports an estimated revenue band of $1 to 5 billion. Simpson Strong-Tie was founded in 1956, has an estimated 5,000-10,000 employees, and is headquartered in Pleasanton, California. On the LightSource stability read it is rated "Established & active": 70 years in operation (founded 1956). Holds ISO 14001, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Simpson Strong-Tie make?
Simpson Strong-Tie, headquartered in Pleasanton, California, designs and manufactures structural connectors, fasteners, anchors, and lateral-force-resisting systems for wood, concrete, steel, and masonry construction. Founded in 1956, the company employs roughly 5,000 to 10,000 people and is a subsidiary of Simpson Manufacturing Co., Inc. Its products serve the construction, plumbing-hardware, renewable-energy, automotive, and industrial equipment sectors. In January 2026, the company opened a 500,000-square-foot manufacturing facility in Gallatin, Tennessee.
Where is Simpson Strong-Tie headquartered?
Simpson Strong-Tie is headquartered in Pleasanton, California (5956 West Las Positas Boulevard, Pleasanton, California, 94588).
When was Simpson Strong-Tie founded?
Simpson Strong-Tie was founded in 1956.
How big is Simpson Strong-Tie?
Simpson Strong-Tie has an estimated 5,000-10,000 employees, with revenue in the $1-5B range (estimated).
What certifications does Simpson Strong-Tie hold?
Simpson Strong-Tie lists ISO 14001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does Simpson Strong-Tie import from overseas suppliers?
US customs bill-of-lading records show 13794 inbound shipments for Simpson Strong-Tie, with top origins including Taiwan · China · Belgium · South Korea.
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Last verified Nov 2026. Is this your company? Request a correction.
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