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      Calgon Carbon

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      Calgon Carbon Reviews

      3.5

      73% would recommend to a friend

      (72 total reviews)
      avatar

      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 72 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

      72 reviews
      3.0
      8 Dec 2025

      Alright work, terrible hours

      Quality assurance technician
      Recommend
      CEO approval
      Business outlook

      Pros

      Independent work with enough down time to allow you to read or do literally anything you want

      Cons

      Terrible hours, rotating days and nights for 12 hours shifts, with one week off of work every month. The switch onto and off of night shift is terrible. I had many visual and auditory hallucinations while alone in the lab at night. "But that week off is nice," is a common refrain heard at work. Everyone hates being there, but the week off is what keeps you coming back.

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      ReviewsCalgon Carbon reviews

      Glassdoor has 88 Calgon Carbon reviews submitted anonymously by Calgon Carbon employees. Read employee reviews and ratings on Glassdoor to decide if Calgon Carbon is right for you.