Koppers

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Koppers is a manufacturer of treated wood products, chemicals, and carbon compounds.

koppers.com
5.3
Last of 54 rated chemical manufacturers

Rating based on 9 employees who took the Breakroom Quiz

How Koppers ranks

Koppers ranks last to work for out of chemical manufacturers.

  1. 51= Axalta Coating Systems
    6.3
  2. 53 Symrise
    5.7
  3. 54 Koppers
    5.3

Rankings are based on Breakroom Ratings for employers with 5 or more Breakroom Quiz responses, accurate as of July 12, 2025.

See how all the chemical manufacturers rank

Top 5 chemical manufacturers

Based on job reviews from 998 employees.

  1. Flint Hills Resources

    Reviewed by 5 employees

    9.5

  2. Air Products

    Reviewed by 18 employees

    9.0

  3. Givaudan

    Reviewed by 14 employees

    9.0

  4. Dow

    Reviewed by 44 employees

    8.9

  5. INEOS

    Reviewed by 11 employees

    8.9

Bottom 5 chemical manufacturers

Based on job reviews from 998 employees.

  1. Olin Corporation

    Reviewed by 15 employees

    6.4

  2. Austin Powder

    Reviewed by 7 employees

    6.3

  3. Axalta Coating Systems

    Reviewed by 15 employees

    6.3

  4. Symrise

    Reviewed by 7 employees

    5.7

  5. Koppers

    Reviewed by 9 employees

    5.3