Mars reviews

4.3

87% would recommend to a friend

(4,393 total reviews)
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Poul Weihrauch

92% approve of CEO

77% positive business outlook

Mars has an employee rating of 4.3 out of 5 stars, based on 4,393 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 Industrie manufacturière industry (3.5 stars).

Reviews by job title

4K reviews
1.0
Nov 29, 2025

Avoid_avoid

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

friendly co-workers, you learn a lot of things, excellent health insurance

Cons

1. salaries way below average; 2. horizontal matrix. absolutely zero career growth if you are not in a central hub eg strasbourg, london etc or in a big country (eg germany) you can say goodbye to real career prospects; 3. age discrimination: if you are over 35, let alone 40+ there is no way that you get promoted to senior manager/director roles; too much focus on new generation "talent pool" which in reality they have zero working experience or working opinion (as every 20year old, having worked nowhere else). These inexperience young people are being promoted via fast track career growth becoming becoming managers of experienced people, which in reality, they add zero value to the team since the experience people bring all (guess what! experience!) and do all the job; experience is valued only informally and with a tap on the shoulder or a best employee award; ending up having a bunch of respect and awards but zero career path since it's taken from the "talent pool" 4. business ethics: politics above all; restructuring every couple of years with outsourcing at maximum and teams being shrinked after each one. Tech support to laugh at as the business invests the minimum (in everything!!), P&O (HR) only in title, as they are nowhere to be seen nor able to do anything; impossible to make it until retirement since you will be fired until then (for whatever reason: restructuring, incompetent manager etc). Nobody to protect the employees rights nor there is any business ethics; in general, you get everything the cheapest possible way, even the food during team gatherings! for a company that makes millions the whole culture is absolutely laughable; company's 5 principles repeated in every sentece proudly as a flag with zero sense.

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Mars Response
6mo
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.
4.0
Nov 28, 2025

A great place to work

Recommend
CEO approval
Business Outlook

Pros

Frankly this is a great place for people with long-term vision for themselves. A lot of places and jobs to explore. The values and the people are amazing and I'm always at least neutral to come to the office.

Cons

As I said it takes quite some time for changes to happen

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Mars Response
6mo
This is good to hear, so thank you for sharing. It’s important to us that our Associates feel supported – and we’re 100% committed to their wellbeing and development. If you’d like to share any more feedback or recommend ways in which we can further improve the Associate experience, please get in touch with your People and Organization team. Thanks again!
4.0
Nov 24, 2025
Recommend
CEO approval
Business Outlook

Pros

Nimble, small team can find focus

Cons

Fitting a small business into a large corporation

Viewing 115 - 117 of 4,393 Reviews

Glassdoor has 6,746 Mars reviews submitted anonymously by Mars employees. Read employee reviews and ratings on Glassdoor to decide if Mars is right for you.