Mimecast reviews

3.5

59% would recommend to a friend

(773 total reviews)

Marc van Zadelhoff

56% approve of CEO

41% positive business outlook

Mimecast has an employee rating of 3.5 out of 5 stars, based on 773 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Mimecast employee rating is in line with the average (within 1 standard deviation) for employers within the Information Technology industry (3.9 stars).

Reviews by job title

773 reviews
3.0
Apr 25, 2026

good department but not enough help

Recommend
CEO approval
Business Outlook

Pros

good people to work with

Cons

no guidance - managers are too busy putting out fires - no real materials for onboarding - pay isn't enough for the work you're doing

1.0
Apr 22, 2026
Recommend
CEO approval
Business Outlook

Pros

There stil a few people in middle managment and working teams which make this place tolerable.

Cons

If you simply need a paycheck, this may serve a purpose. But if you are looking for a company where you can grow, develop, and work in a true growth-mindset culture, this is likely not the right place. The board and exec LT share responsibility for the current toxic and negative environment. New ideas from middle mgmt./working teams are rarely welcomed or acted on unless they are surfaced later by permira board members or advisors, at which point they are reframed as new discoveries. This creates frustration, slows progress, and discourages initiative. Every week a new priority wiplash by the channel leader who clails evertyhing is screwed up when he got here. The culture can feel highly political and fear-driven. There is too much toxic leadership behavior, too much conflict created between teams, and too much emphasis on protecting agendas rather than solving problems. Rather than encouraging healthy debate and collaboration, the environment often rewards compliance and “yes” people. There is also a disconnect between the promises made and the likely reality of the business. Equity/RSU upside does not feel credible, given the company’s performance challenges and the gap between stated ambitions and actual execution.

Viewing 25 - 27 of 773 Reviews

Glassdoor has 818 Mimecast reviews submitted anonymously by Mimecast employees. Read employee reviews and ratings on Glassdoor to decide if Mimecast is right for you.