Here are some of the more impressive Slack statistics I've been able to dig up recently. As always, be sure to check back in the future as I will be updating this post as new and updated stats become available.
The team messaging app Slack has only been around for about a year, but it has certainly created quite a stir among influencers in its short existence. While it only has a few million daily users currently (a relatively small user tally these days), those who use Slack rave about the product and its user engagement stats are very impressive.
Slack Facts
- Website: slack.com
- Launch Year: 2013
- Headquarters: San Francisco, CA
- Founder: Stewart Butterfield
What is Slack?
Slack brings team communication and collaboration into one place so you can get more work done, whether you belong to a large enterprise or a small business. (source)
Slack Statistics
How many people use Slack?
Last updated 3/18/20
Number of weekly active users:
Last updated 5/5/18
Number of messages sent weekly:
Last updated 5/31/19
Number of paid accounts:
Last updated 5/22/18
Number of organizations that use Slack:
Last updated 6/4/20
Number of teams that use the free version:
Last updated 5/13/19
Number of daily active users when it launched in February 2014:
Number of paid teams:
- 2020: 122,000 teams
- 2019: 88,000 teams
- 2018: 59,000 teams
- 2017: 37,000 teams
Average amount of time users are active on weekdays:
Last updated 5/31/19
Percentage of the Fortune 100 that pay for Slack:
Last updated 5/5/18
Number of times users have used workflows on them:
Last updated 4/8/20
Average amount of hours users stay plugged into it on a weekday:
Last updated 10/1/19
Number of developers that use the API weekly:
Last updated 5/22/18
Percentage of daily users that are from outside the US:
Last updated 5/31/19
Number of employees:
Last updated 4/30/19
Amount of funding raised to date:
Last updated 8/21/18
Slack's reported valuation:
Last updated 8/21/18
Amount of time that users spend on it weekly:
Last updated 5/31/19
Number of apps in the app directory:
Last updated 3/16/20
Number of Enterprise Grid customers:
Last updated 1/31/18
Number of countries that Slack has users in:
Last updated 5/31/18
Percentage of users that say it improves their communication and collaboration inside their organization:
Last updated 5/31/19
Slack paid customer counts (annual):
- Year ended January 31, 2020: 110,000
- Year ended January 31, 2019: 88,000
- Year ended January 31, 2018: 59,000
- Year ended January 31, 2017: 37,000
Slack revenue (annual):
- Year ended January 31, 2020: $630.4 million
- Year ended January 31, 2019: $400.6 million
- Year ended January 31, 2018: $220.5 million
- Year ended January 31, 2017: $105.2 million
Slack net loss (annual):
- Year ended January 31, 2020: $154.2 million
- Year ended January 31, 2019: $138.9 million
- Year ended January 31, 2018: $140 million
- Year ended January 31, 2017: $146.9 million
Number of monthly messages sent:
1.5 billion
Last updated 2/24/16
Top city (globally) for usage:
Last updated 2/12/15
Number of apps that have been developed:
Last updated 12/15/15
Top country for usage:
Last updated 2/12/15
Top city (outside of U.S) for usage:
Last updated 2/12/16
Retention rate for paid users:
Last updated 4/16/15
Number of people in Tokyo that use Slack:
Last updated 9/12/17
Number of people in London that use Slack:
Last updated 9/12/17
Number of people in Berlin that use Slack:
Last updated 9/12/17
Number of people in New York City that use Slack:
Last updated 9/12/17
Weekly active users growth rate:
Last updated 1/19/15
Total number of hours users collectively spend on it monthly:
Last updated 2/12/15
Maximum number of users logged in at the same time:
Last updated 10/27/15
Most configured integration
Last updated 2/12/15
Number of integrations to date:
Last updated 6/24/15
Percentage of users that say it improves transparency and culture in the office:
Last updated 7/14/15
Average reduction in office email that users see:
Last updated 7/14/15
Average reduction in office meetings that users see:
Last updated 7/14/15
Average increase in team productivity that users see:
Last updated 7/14/15
Percentage of users that say it makes finding information easier for them:
Last updated 7/14/15
Percentage of users that say it improves team culture:
Last updated 7/14/15
Percentage of managers that are women:
Last updated 2/3/16
Percentage of employees that are women:
42.9%
Last updated 2/3/16
Average number of monthly app installs from the app Directory:
Last updated 10/20/16
Number of third-party app installs to date:
Last updated 9/12/17
Percentage of customers that use integrations:
Last updated 9/27/16
Number of offices:
7 offices
Last updated 10/20/16
Average number of times a Google Drive file is imported each weekday:
Last updated 12/7/16
Number of bots in the App Directory:
900 bots
Last updated 2/7/17
Percentage of paid teams that are actively using at least one app:
Last updated 4/11/17
Reported amount Amazon was willing to pay for Slack in June 2016:
Number of users in Tokyo:
Last updated 7/19/18
Number of Slack users in Japan:
Last updated 7/19/18
Number of paid subscribers in Japan:
Last updated 7/19/18