Slack reviews

4.0

77% would recommend to a friend

(1,095 total reviews)
avatar

Stewart Butterfield

88% approve of CEO

70% positive business outlook

Slack has an employee rating of 4.0 out of 5 stars, based on 1,095 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Slack employee rating is in line with the average (within 1 standard deviation) for employers within the Informatique industry (3.9 stars).

Reviews by job title

1K reviews
4.0
Oct 5, 2025

Good place to work

Recommend
CEO approval
Business Outlook

Pros

* Fairly relaxed culture, by tech standards * Interesting problems, "big" data * Coworkers are nice and friendly people

Cons

* Some people are clearly coasting * Salesforce as a whole is not doing well (<10% Y/Y growth) * Random layoffs and poor communication from company leadership * In-office requirements of 3 days/week doesn't make sense for many (most of the people I work with don't even live in New York)

5.0
Oct 3, 2025

Nice company to work for

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Benefits / culture / innovative work

Cons

Not really much to say here

3.0
Sep 25, 2025
Recommend
CEO approval
Business Outlook

Pros

Marketing brand opportunities Interesting work Working for a cool company

Cons

Ability to get promoted Work life balance

Viewing 25 - 27 of 1,095 Reviews

Glassdoor has 1,227 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.