Slack reviews

4.0

77% would recommend to a friend

(1,094 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 1,094 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 Informationstechnologie industry (3.9 stars).

Reviews by job title

1K reviews
4.0
Feb 9, 2026
Recommend
CEO approval
Business Outlook

Pros

uses Slack for everything, obviously great work-life balance clear expectations in eng IC career ladder

Cons

more and more Salesforce corporate policies eroding the old Slack people-first culture I've felt disengaged with executive leadership since the departure of Cal Henderson

4.0
Feb 8, 2026
Recommend
CEO approval
Business Outlook

Pros

Front and second line management is fantastic. Pay and benefits are solid. Good work-life balance. Lots of opportunity for advancement/career exploration

Cons

Salesforce's aggressive sales tactics angere customers. Product vision and development has slowed and shifted in favor of Salesforce. Pricing structure makes it hard to sell. Salesforce is a hype machine that claims to be at the forefront of everything when it's not in many cases so you have to learn to step back and look at things with a critical eye. Prod

Viewing 10 - 12 of 1,094 Reviews

Glassdoor has 1,226 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.