Mars reviews

4.3

86% would recommend to a friend

(4,396 total reviews)
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Poul Weihrauch

92% approve of CEO

76% positive business outlook

Mars has an employee rating of 4.3 out of 5 stars, based on 4,396 company reviews on Glassdoor which indicates that most employees have an excellent working experience there. The Mars employee rating is 24% above average for employers within the Manufactura industry (3.5 stars).

Reviews by job title

4K reviews
1.0
Oct 18, 2025

Stay away

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Employer contribution match 401(k), bonuses, good wages/salary, excellent vacation plan, great company overall.

Cons

At the Burr Ridge site, senior management has developed a pattern of using constructive dismissal, defamation, and discriminatory practices to quietly force employees out. The work environment in some departments is extremely toxic, dominated by a bullying culture that disguises itself as supportive and inclusive. While leaders publicly portray themselves as “coaches” or “mentors,” behind the scenes they ostracize and target certain employees under direct or indirect direction from senior leadership. What’s presented as professionalism is, in reality, a coordinated effort to silence and remove those who won’t conform to unethical behavior.

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Mars Response
7mo
Thank you for taking the time to write your review. We’re sorry to hear your experience with us has not been positive. We aim to support our Associates in every way throughout their time with us and are committed to their wellbeing and development. Please reach out to the independent, confidential team at ombudsman@effem.com, and we look forward to discussing this further.
5.0
Oct 18, 2025

Good company

Recommend
CEO approval
Business Outlook

Pros

Strong values and culture, learning and development opportunities

Cons

Speed to market and customer change

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Mars Response
8mo
We’re happy to hear your experience with us was positive. Our Associates’ wellbeing and development are hugely important to us and it’s always good to hear good feedback. We wish you every success in your future endeavours. Thank you for taking the time to share!
3.0
Oct 16, 2025

Good culture

Recommend
CEO approval
Business Outlook

Pros

Good Culture, discounts on M&ms, free candy,

Cons

Return to office, no stock/pension,

Viewing 160 - 162 of 4,396 Reviews

Glassdoor has 6,751 Mars reviews submitted anonymously by Mars employees. Read employee reviews and ratings on Glassdoor to decide if Mars is right for you.