Stay away - Anonymous employee Mars Employee Review

1.0
Oct 18, 2025
Anonymous employee
Recommend
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
8mo
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.

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5.0
Jul 2, 2026
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Pros

Culture and the role make the company

Cons

Lack of time for fundamentals

5.0
Jun 23, 2026
Recommend
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Pros

I’ve been at Mars (Yorkville site) for about three months as a Quality Systems Senior Specialist, and so far it’s been a great experience. Everyone has been genuinely friendly, welcoming, and willing to help. The culture feels very supportive—people want to see you succeed and are quick to share knowledge and offer guidance. My manager has been amazing and is truly invested in my growth. She’s helped set clear expectations, encouraged development, and provided the tools and support I need to be successful.

Cons

None so far—still new, but my experience has been very positive.

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