Westlake Corp number of employees

Westlake Corp reported 14,600 employees at December 31, 2025 in its latest annual report, down 940 (6.0%) on the year before. That compares with 15,920 at December 31, 2022. Revenue per employee was $765,068.

Headcount by year

Fiscal year end	Employees	Change	Revenue per employee	Source
December 31, 2025	14,600	−940 (6.0%)	$765,068	10-K, filed February 26, 2026
December 31, 2024	15,540	+20 (0.1%)	$781,338	10-K, filed February 25, 2025
December 31, 2023	15,520	−400 (2.5%)	$808,505	10-K, filed February 22, 2024
December 31, 2022	15,920	—	$992,085	10-K, filed February 22, 2023

What the annual reports say

Headcount As of December 31, 2025, we had approximately 14,600 employees in the following areas: Category Number Housing and Infrastructure Products segment 7,400 Performance and Essential Materials segment 6,500 Corporate and other 700 Our employees are distributed across 18 countries. 2025 annual report
Headcount As of December 31, 2024, we had approximately 15,540 employees in the following areas: Category Number Performance and Essential Materials segment 6,800 Housing and Infrastructure Products segment 8,130 Corporate and other 610 11 Table of Contents Our employees are distributed across 19 countries. 2024 annual report
Headcount As of December 31, 2023, we had approximately 15,520 employees in the following areas: Category Number Performance and Essential Materials segment 6,830 Housing and Infrastructure Products segment 8,130 Corporate and other 560 Our employees are distributed across 19 countries. 2023 annual report
Headcount As of December 31, 2022, we had approximately 15,920 employees in the following areas: Category Number Performance and Essential Materials segment 6,800 Housing and Infrastructure Products 2022 annual report

Headcount as the company states it in Item 1 of its annual report (some count full-time equivalents or exclude part-time and temporary staff), at the date it gives. Years where the report states no clear total are left out rather than estimated. Changes can reflect acquisitions and disposals as well as hiring and job cuts.

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Figures from Westlake Corp's SEC filings (10-K and 10-Q), retrieved October 20, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to Westlake Corp.