Koppers
Koppers Inc. is a global company founded in 1912 by Heinrich Koppers in Chicago, Illinois. The company initially focused on developing by-product recovery coke ovens, enhancing the efficiency of coke production. In 1915, it moved its headquarters to Pittsburgh, Pennsylvania, where it remains today. Over the years, Koppers has expanded through acquisitions and diversifications, becoming a conglomerate with interests in chemicals, plastics, wood products, and paving. Koppers offers a variety of products and services, including the production of styrene-butadiene monomer, ethylbenzene, and expandable polystyrene, which are essential for synthetic rubber and plastics. The company also provides integrated paving contracting services and has operated wood treatment facilities. In August 2023, Koppers announced a $17 million investment to establish a new manufacturing facility in Louisiana, underscoring its commitment to growth and innovation. With approximately 11,128 employees and sales of $1.396 billion, Koppers continues to play a significant role in the chemical and infrastructure sectors.
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Headcount trend
Koppers went from 459 employees in Jul 2023 to 474 in Jun 2025. Last 6 months: 19 people joined, 13 left.
Org structure
Headcount by department
Executive compensation
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All salaries1 salary profiles in the US
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 3 filings.
Peer reviews
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Koppers FAQ
How many employees does Koppers have?
Koppers has about 474 employees, up 0.6% over the last 3 months (as of Jun 2025).
Does Koppers sponsor H1B visas?
Yes. Koppers filed 3 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
What is Koppers's revenue per employee?
Koppers makes about $4.33M in revenue per employee, based on $2.05B annual revenue and 474 employees.
How much does Koppers pay?
6figr has 1 salary profile for Koppers in the US, with pay broken down by role, level, gender and ethnicity on the Koppers salaries page. See Koppers salaries
Is Koppers a public company?
Yes. Koppers is publicly traded under the ticker KOP on NASDAQ.
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles. Updated 21 Oct 2026.