7 Jul 2026
Calgon Carbon Reviews
73% would recommend to a friend
Randall Dearth
61% approve of CEO
54% positive business outlook
Calgon Carbon has an employee rating of 3.5 out of 5 stars, based on 73 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Calgon Carbon employee rating is in line with the average (within 1 standard deviation) for employers within the Manufacturing industry (3.5 stars).
Reviews by job title
73 reviews