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
1.0
Nov 18, 2025
Recommend
CEO approval
Business Outlook

Pros

Waste dont come for interview waste of time

Cons

The role is management associate but they you field sales job

4.0
Oct 30, 2025

Great place to work.

Recommend
CEO approval
Business Outlook

Pros

Smart dedicated people. Satisfying work on a product that is important to a lot of people.

Cons

Salesforce culture is very different than Slack's. Since the acquisition things have definitely changed.

Viewing 19 - 21 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.