Verified Nov 2026
Electronics & Software
·
Houston, Texas
·
Since 1986
Westlake Corporation is a publicly listed industrial company headquartered in Houston, Texas, founded in 1986. It manufactures petrochemicals, polymers, and building products across two segments, Performance and Essential Materials and Housing and Infrastructure Products. The company employs roughly 10,000 to 50,000 people and reported revenue of about $11.2 billion. It serves the automotive, electric vehicle, electronics, appliance, construction, and medical industries. In October 2025 it completed an expansion of its PVC pipe manufacturing at Westlake Pipe & Fittings.
Westlake at a glance
Revenue
11.2B
Employees
10,000-50,000
Founded
1986
Headquarters
Houston, Texas
Ownership
Publicly traded (NASDAQ: WLK)
Certifications
IATF 16949 · ISO 13485 · ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001
Import activity
671
Industries
Automotive
Electric Vehicles
Electronics
Appliance
Construction
Medical
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
671
Named foreign suppliers
31
Top origins
Netherlands · Germany · Belgium · South Korea
Shared foreign counterparties do not establish that these companies buy from Westlake.
What this tells a buyer
Westlake reported third quarter 2026 results on November 4, 2026, and separately acquired PVC and VCM plants in Wilhelmshaven, Germany, in June 2026.
The company holds IATF 16949, ISO 9001, ISO 13485, ISO 14001, ISO 45001, and ISO 50001 certifications, and its listed products include composite, plastic, suspension, and electronics offerings.
Westlake is listed on the NYSE under the ticker WLK and operates facilities in Wichita Falls, Texas; Aberdeen, Mississippi; and Deer Park, Texas.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & strong
40 years in operation (founded 1986).
Publicly listed; no distress event on record.
Holds IATF 16949, ISO 13485, ISO 14001, ISO 45001, ISO 50001, ISO 9001 certification(s) per public sources.
Overview
Westlake Corporation is a publicly listed industrial company headquartered in Houston, Texas, founded in 1986. It manufactures petrochemicals, polymers, and building products across two segments, Performance and Essential Materials and Housing and Infrastructure Products. The company employs roughly 10,000 to 50,000 people and reported revenue of about $11.2 billion. It serves the automotive, electric vehicle, electronics, appliance, construction, and medical industries. In October 2025 it completed an expansion of its PVC pipe manufacturing at Westlake Pipe & Fittings.
At a glance
Attribute | Detail |
|---|---|
Founded | 1986 |
Headquarters | Houston, Texas |
Employees | 10,000-50,000 |
Revenue | 11.2B |
Ownership | Publicly traded (NASDAQ: WLK) |
Primary capability | Electronics & Software |
Certifications | IATF 16949 · ISO 13485 · ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001 |
What Westlake makes
The company holds IATF 16949, ISO 9001, ISO 13485, ISO 14001, ISO 45001, and ISO 50001 certifications, and its listed products include composite, plastic, suspension, and electronics offerings.
Products and capabilities described on the company's own site include Composite, Plastic, Suspension, Electronics (source: westlake.com).
Certifications
Westlake is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
IATF 16949 — westlakeglobalcompounds.com
ISO 13485 — westlakeglobalcompounds.com
ISO 14001 — westlakeglobalcompounds.com
ISO 45001 — westlakeglobalcompounds.com
ISO 50001 — westlakeglobalcompounds.com
ISO 9001 — westlake.com
Trade and customs footprint
Westlake reported third quarter 2026 results on November 4, 2026, and separately acquired PVC and VCM plants in Wilhelmshaven, Germany, in June 2026. US customs bill-of-lading records list 671 inbound shipments across 31 foreign suppliers, with top origins including Netherlands · Germany · Belgium · South Korea.
Latest developments
2026-11-04 — Westlake Corporation Reports Third Quarter 2026 Results | Wed, 11/04/2026 - 06:30 (westlake.com)
2026-10-29 — Westlake Pipe & Fittings Completes PVCO Pipe Manufacturing Expansion | Thu, 10/29/2026 - 06:00 (westlake.com)
2026-06-15 — Westlake Expands Global Chlorovinyls Manufacturing Capacity With Acquisition of PVC and VCM Plants in Wilhelmshaven, Germany | Westlake (westlake.com)
2026-01-05 — Westlake Strengthens Global Compounds Portfolio With Acquisition of ACI Compounding Solutions Business | Westlake (westlake.com)
2025-10-30 — Westlake Chemical Partners Announces Renewal of Ethylene Sales Agreement | Westlake (westlake.com)
2025-08-26 — Westlake Announces Acquisition of ACI Compounding Solutions Business | Westlake (westlake.com)
Facilities
Westlake is headquartered in Houston, Texas. Public sources also reference these locations:
Wichita Falls, Texas — westlake.com
Aberdeen, Mississippi — westlake.com
Deer Park, Texas — westlake.com
Company details
Westlake is listed on the NYSE under the ticker WLK and operates facilities in Wichita Falls, Texas; Aberdeen, Mississippi; and Deer Park, Texas. Westlake was founded in 1986, has an estimated 10,000-50,000 employees, and is headquartered in Houston, Texas. On the LightSource stability read it is rated "Established & strong": 40 years in operation (founded 1986). Publicly listed; no distress event on record. Holds IATF 16949, ISO 13485, ISO 14001, ISO 45001, ISO 50001, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Westlake make?
Westlake Corporation is a publicly listed industrial company headquartered in Houston, Texas, founded in 1986. It manufactures petrochemicals, polymers, and building products across two segments, Performance and Essential Materials and Housing and Infrastructure Products. The company employs roughly 10,000 to 50,000 people and reported revenue of about $11.2 billion. It serves the automotive, electric vehicle, electronics, appliance, construction, and medical industries. In October 2025 it completed an expansion of its PVC pipe manufacturing at Westlake Pipe & Fittings.
Where is Westlake headquartered?
Westlake is headquartered in Houston, Texas (2801 Post Oak Boulevard, Houston, Texas, 77056).
When was Westlake founded?
Westlake was founded in 1986.
How big is Westlake?
Westlake has an estimated 10,000-50,000 employees, with revenue in the 11.2B range.
Is Westlake publicly traded?
Publicly traded (NASDAQ: WLK). Public financial figures are drawn from its filings.
What certifications does Westlake hold?
Westlake lists IATF 16949 · ISO 13485 · ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Related suppliers
Explore other suppliers in the LightSource directory:
Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Phone
+1 713-960-9111
Certification
IATF 16949 · ISO 13485 · ISO 14001 · ISO 45001 · ISO 50001 · ISO 9001
Evaluating suppliers like these?
This profile comes from a public-data sample of around 1,000 companies. Book a demo to see the full LightSource marketplace and supplier discovery platform — 1M+ credible suppliers, with AI-run sourcing events.