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
2.0
Mar 3, 2026

Going nowhere fast

Recommend
CEO approval
Business Outlook

Pros

There have sadly not been many pros in recent times. Depending on execution pivoting to Human Risk Management might pay off to revitalize the company.

Cons

Job insecurity, lay offs often looming. Demand for product category (email security) has been declining as customers consolidate on platforms like Microsoft.

1.0
Mar 1, 2026
Recommend
CEO approval
Business Outlook

Pros

Flexible work arrangement (2 days in office) & supportive colleagues, many of whom have since moved on

Cons

The company culture has changed noticeably over time, particularly following shifts in global senior leadership and operating style. Communication and transparency could be improved, and at times the environment can feel more pressure-driven and blaming rather than collaborative. There is also a perception that alignment is sometimes valued more than constructive feedback, even though healthy debate can ultimately benefit customers and the company. There have been multiple rounds of layoffs, and a number of experienced colleagues have left the organisation. In some cases, employees felt there was limited visibility into how decisions were made, which has affected morale. Some teams feel less confident about the long-term direction of the organization.

Viewing 43 - 45 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.