5.0
11 Feb 2026
Recommend
CEO approval
Business outlook
Pros
Great people, supportive, kind and willing to teach you and answer all your questions
Cons
Sometimes get crowded when orders come in and in need to work in the weekends
SPEX CertiPrep Reviews
60% would recommend to a friend
Yvonne Cangelosi
89% approve of CEO
75% positive business outlook
SPEX CertiPrep has an employee rating of 3.6 out of 5 stars, based on 19 company reviews on Glassdoor which indicates that most employees have a good working experience there. The SPEX CertiPrep employee rating is in line with the average (within 1 standard deviation) for employers within the Manufacturing industry (3.5 stars).