Slack competitorsClear all

Slack's top competitors include Microsoft Teams, Flock, Telegram and Mattermost.
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Slack
Slack
Slack Technologies is a company developing collaboration software.
Microsoft Teams
Microsoft Teams
Microsoft Teams is a business communication platform developed by Microsoft.
Flock
Flock
Flock is a technology company providing a communication and collaboration app for engineering, sales, marketing, product, human resource, and customer support teams.
Telegram
Telegram
Telegram is a messaging app with a focus on privacy, security and speed.
Mattermost
Mattermost
Mattermost is a company developing a messaging solution across web, desktop, and native mobile devices.
Founding Date
Founding Date
2009
Founding Date
2017
Founding Date
2014
Founding Date
2013
Founding Date
2011
Type
Type
Public
Type
Subsidiary
Type
Private
Type
Private
Type
Private
Tags
Locations
Locations
San Francisco, US HQ
Carlton, AU
Sydney, AU
Toronto, CA
Vancouver, CA
Paris, FR
München, DE
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Locations
Redmond, US HQ
Locations
رأس الخيمة, AE HQ
Locations
Dubai, AE HQ
Locations
Palo Alto, US HQ
Employees
Employees
2,59727% increase
Employees
N/A
Employees
1022% increase
Employees
3412% increase
Employees
1681% increase
Twitter followers
Twitter followers
451.5 k
Twitter followers
252.4 k
Twitter followers
15.6 k
Twitter followers
1 m
Twitter followers
10.4 k
Number of tweets (last 30 days)
Number of tweets (last 30 days)
906
Number of tweets (last 30 days)
441
Number of tweets (last 30 days)
1
Number of tweets (last 30 days)
791
Number of tweets (last 30 days)
94
Average likes per tweet (last 30 days)
Average likes per tweet (last 30 days)
3.3
Average likes per tweet (last 30 days)
18.2
Average likes per tweet (last 30 days)
1
Average likes per tweet (last 30 days)
32.5
Average likes per tweet (last 30 days)
3.2
Percentage of tweets with engagement (last 30 days)
Percentage of tweets with engagement (last 30 days)
40.29%
Percentage of tweets with engagement (last 30 days)
49.66%
Percentage of tweets with engagement (last 30 days)
100%
Percentage of tweets with engagement (last 30 days)
59.54%
Percentage of tweets with engagement (last 30 days)
94.68%
Alexa Website Rank
Alexa Website Rank
352
Alexa Website Rank
N/A
Alexa Website Rank
20595
Alexa Website Rank
122
Alexa Website Rank
144149
Employee Rating
Employee Rating
4.7
Employee Rating
N/A
Employee Rating
4
Employee Rating
N/A
Employee Rating
4.3

Funding

Latest funding round
Latest funding round
N/A
Latest funding round
N/A
Latest funding round
$ 15m (about 13 years ago)
Latest funding round
$ 850m (over 4 years ago)
Latest funding round
$ 50m (about 2 years ago)
Total funding raised
Total funding raised
$ 1.3b
Total funding raised
N/A
Total funding raised
N/A
Total funding raised
$ 1.7b
Total funding raised
$ 70m
For sources of this data, please see the company profile

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Microsoft Teams
HQ
Redmond, US

Microsoft Teams is a business communication platform developed by Microsoft.

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Flock
HQ
رأس الخيمة, AE
Employees
102↑ 2% increase

Flock is a technology company providing a communication and collaboration app for engineering, sales, marketing, product, human resource, and customer support teams.

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Telegram
HQ
Dubai, AE
Employees
341↑ 2% increase

Telegram is a messaging app with a focus on privacy, security and speed.

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Mattermost
HQ
Palo Alto, US
Employees
168↑ 1% increase

Mattermost is a company developing a messaging solution across web, desktop, and native mobile devices.

View company