Celerion reviews

3.1

55% would recommend to a friend

(303 total reviews)
avatar

Susan Thornton

52% approve of CEO

52% positive business outlook

Celerion has an employee rating of 3.1 out of 5 stars, based on 303 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Celerion employee rating is in line with the average (within 1 standard deviation) for employers within the Pharmaceutical & Biotechnology industry (3.5 stars).

Reviews by job title

303 reviews
5.0
Jun 17, 2025

Great Place to Work

Recommend
CEO approval
Business Outlook

Pros

I love working here, coworkers are great, stay busy but never overwhelmed. Interesting work, opportunities for advancement.

Cons

Scheduling can sometimes be a challenge

5.0
May 28, 2026
Recommend
CEO approval
Business Outlook

Pros

Really decent benefits ,GRATE Facilities ( Building Maintiance) Supervisor, GRATE Director that is in charge at out 2 Tempe properties! I love the company work environment

Cons

My interview and job offer were around the first of the month, I was told by HR That My start date would be as soon as I was able to accept the job offer and once my background check came back. I was called back a few minutes later and asked if I could start almost 2 weeks later........Unknowing that my start date was the last day of the facilities tech's that I was replacing. So I LITERALLY GOT 2 1/2 hours on a job that has Weekly, Monthly, Quartly, Semi annual and annual inspections on some appliances, Systems and areas that I was and am not familiar with or that Vendors were called in for at all the other facilities that I work for in all the yeaars I have done maintaince for in the past. So I have to ask questions ALL the time because I did not receive a proper 2 week training period, Why I was hired this way I do not know but feel I was setup for failure and am under constiant stress, and feel like a TOTAL failure because I am running behind 100% of the time. I take care of my 80 year old father who has onset dementia when I am not at work. So no real training and being behind all the time has taken its toll on me mentally and physically. ( This has only been MY PERSONAL exp. I am told IT'S NOT COMMON practice )

2.0
May 16, 2026
Recommend
CEO approval
Business Outlook

Pros

-Remote work -Pays for half of your Internet bill

Cons

-No vertical growth -Manager chooses not to hire replacements and expects the team to work on more with less and less people -Manager micromanages and then ghosts you for a week when you escalate, which causes major delays in the workflow -Blatant favoritism based on personal relations

Viewing 1 - 3 of 303 Reviews

Glassdoor has 315 Celerion reviews submitted anonymously by Celerion employees. Read employee reviews and ratings on Glassdoor to decide if Celerion is right for you.