20 Slack Statistics You’ll Be Surprised to Know in 2024

Understanding Slack statistics is crucial for comprehending the global business communication platforms, which, in turn, can provide you with invaluable insights into the nature of work and how we approach it.  

If you want to learn more about this platform, we’ll provide you with some interesting user and performance facts along with relevant statistics outlining Slack’s future development prospects.

Let’s get started!   

Top 10 Slack Stats and Facts

  • Slack was utilized daily by more than 12 million people worldwide in 2020. 
  • Stats show that 77% of Fortune 100 companies use Slack Connect.
  • More than 750,000 enterprises were using Slack on a daily basis in 2020.
  • Slack has active users in more than 150 countries across the world.
  • An average user spends 10 hours per weekday connected to Slack.
  • New York had 420,000 Slack users in 2017.
  • Only a third of the users were paying for Slack services in 2017.
  • The expected Slack revenue for 2025 is $4.22 billion.
  • Slack reached a $20 billion market cap on the first day of trading.
  • Approximately 74% of Slack users use public channels for messaging.

General Slack Statistics

Thanks to the platform’s versatility and adherence to the dominant digital marketing trends, Slack has been generating more customers and revenue than ever before. Here are some of the most interesting facts that support this claim.

1. Slack had more than 12 million daily users worldwide in 2020.

(Source: Mashable) 

In the same year, the platform also underwent a major redesign, bringing new features and making the existing ones even more streamlined. Since we know that 90% of users will usually stop using an app due to poor performance, frequent redesigns are probably a good idea.

The number of users could have been higher since the COVID-19 pandemic increased the demand for work-at-home solutions, but the stiff competition (especially Microsoft Teams) stifled Slack’s growth. For comparison, Discord currently has 150 million monthly active users.

2. Slack stats show that 77% of Fortune 100 companies are using Slack Connect.

(Source: Slack Fortune 100)

Some of the more notable companies are IBM, Oracle, and Target. In the next two years, the management of the company expects at least a few more companies to be added to Slack’s Fortune 100 list.

3. In 2020, approximately 750,000 organizations were actively using Slack.

(Source: Business of Apps)

In terms of daily active users, the platform was expanding by 2 million per year between 2015 and 2018, when the adoption rates doubled to 4 million. 

A similar jump was also noticed in the number of paying customers, i.e., the platform gained 10,000 new paid users between 2017 and 2018, and 18,000 between 2018 and 2019.  

4. Slack is used by organizations and individuals from more than 150 countries around the world.

(Source: Slack Adoption Rates) 

Considering Slack’s number of customers, the fact that this platform is used all over the world is by no means surprising. It owes a part of this success to its search engine, which was perfected with the help of AI, also known as cognitive computing.

5. Slack was worth $20 billion on its first day of trading.

(Source: Market Watch)

In 2019, Slack initiated its first day of trading on the New York Stock Exchange. The management decided to take advantage of the direct listings instead of the popular initial public offering (IPO).

This way, the company’s market cap at the end of the day was almost three times higher than the last private valuation. 

6. Slack’s revenue is expected to reach $4.22 billion by 2025.

(Source: Slack Financial Report / Statista) 

Seeing how the platform’s total revenue for 2020 amounted to $630.4 million, this projection might seem surprising. However, since Slack has been recording impressive year-over-year growth (57% in 2020), the forecast might be more realistic than it seems.

7. Slack stats show that this platform has the highest conversion rate of 30% among all freemium business models.

(Source: Invesp) 

To illustrate, Google Drive, Dropbox, and Spotify have 0.5%, 4%, and 27% conversion rates, respectively. However, we must take into consideration that Slack is also a B2B platform, which might partially explain its impressive conversion rates. 

Slack Users Statistics

In the following section, we’ll take a look at some of the more interesting user-related statistics, including the areas with the most daily active users, average time on the app, etc.

8. An average user is connected to Slack for around 10 hours per weekday.

(Source: Time)

Naturally, this doesn’t mean they are actively using it all this time, especially since we know this is longer than the average time we spend in front of our devices. Additionally, if you consider the fact that most people use Slack for work, this number, although high, is not really surprising. 

9. In 2017, Slack had 420,000 users in New York alone.

(Source: DMR)

Even though more than half of Slack users are coming outside of the US, New York still remains the city with one of the largest DAU (daily active user) pools. Appropriately, Slack provides an integrated New York Times app for all who appreciate the daily newspaper.

10. According to Slack demographics data from 2017, only a third of its users were paying for the service.

(Source: Statista)

In other words, out of 6 million active users in September 2017, only 2 million were paying customers. The year later, this ratio has slightly shifted, with 3 million paid users and 8 million total DAU.

11. Slack was introduced in Japan in 2019.

(Source: Slack Japan)

From day one, Japanese companies have been the engine powering the growth of this platform. Slack is already used by names like Nikkei, Bandai Namco Studios, Yahoo! Japan, and Musashi, and hopes for many more. 

Slack Productivity Statistics

If you’ve ever used Slack, you know that this platform has amazing productivity-increasing potential, from helping you consolidate all your channels of communication into one to allowing you to easily collaborate with your teammates through its reliable screen recording software.

But let’s take a look at the actual numbers.

12. Slack can reduce your email usage by 32%.

(Source: Slack Collaboration)

After an extensive survey of its users, Slack confirmed that the average increase in the overall productivity of surveyed companies is 30%. Furthermore, the available info shows that time spent in meetings has been reduced by 23%. 

13. Slack channel statistics show that 74% of Slack users send messages via public channels.

(Source: Productiv)

Slack users are much more likely to share or update info and announcements through public channels than employees coming from enterprises using a different platform. Along with different apps and bots, public channels are among the main reasons for Slack’s popularity.

14. Using Slack can increase your cross-team collaboration.

(Source: Productiv)

A recent survey tells us that more than 90% of the companies using Slack have witnessed over 70% of their employees utilizing the app for cross-team collaboration. 

The available Slack statistics also portray a 43% external traffic increase in all the surveyed enterprises. This means that the platform, alongside the internal optimization effects, can simplify and speed up communication between organizations.

15. Slack contributed to enterprises witnessing a 13% increase in the number of arranged contracts.

(Source: Forrester)

In three years’ time, organizations using Slack saw a total increase in sales velocity amounting to $2,551,285. Moreover, sales teams saved 31 minutes per user daily in conducting their negotiations and agreeing to contracts. 

Slack does this by reducing the time needed for exchanging emails, phone calls, or messages, as well as the time needed for switching between different business apps. All in all, the net savings of the companies over the three years reached $951,089.

16. Slack team statistics show that this platform can increase overall efficiency and improve productivity.

(Source: Forrester)

According to a recent survey, non-sales employees state that Slack saved them almost 26.8 minutes per day. Seeing how this platform can also reduce the onboarding time for new employees by 13%, it’s not surprising that Slack is so popular among enterprises. 

17. More than 100,000 organizations are using Slack Connect.

(Source: Slack Connect)

The process of connecting with your peers is totally secure and can be conducted by using the Slack Connect feature. Seeing how there are 2,200 cyberattacks per day worldwide, this is by no means insignificant.

The available Slack numbers tell us that when using this app, the average deal cycle for the sales team is four times as fast. 

On top of that, customer support teams can experience a 64% decrease in backlog tickets, while the business development teams can close company acquisitions twice as fast. Some of this is only possible thanks to Slack’s integrations with top task management software apps.

18. Slack isn’t only about work; it’s about fun, too!

(Source: Slack App Directory)

One of the greatest Slack features is its online game repository. This platform will give you a chance to play numerous interactive games with your colleagues, such as Rock Paper Scissors, Connect Four, Chess Box, Gift to Gift, or Ice Breakers. 

19. Slack’s app directory boasts a number of educational apps.

(Source: Ricotta)

One such app is Ricotta Games & Trivia, which is full of quizzes, puzzles, and knowledge contests. Moreover, games like Story Building will animate employees and colleagues to engage in interactive story-building, exchanging ideas, and cultivating relationships.

20. One of the interesting Slack facts that you might not know is that this platform was created by a game development studio. 

(Source: Business Insider)

That’s right, the Slack we know today started as a video game project initiated by Tiny Speck. The company developed a multiplayer game, Glitch, which was eventually shut down in 2012. 

In order to facilitate inter-team collaboration during the development of this game, they created a platform that gradually grew into what we now know as Slack.  

However, we can still see the video game origins in Slackbot that zealously guides you through the Slack experience. Yes, Slackbot is pretty much inspired by “familiars,” which help you and guide you through the gameplay. 

Wrapping Up

Even though Slack has had to deal with serious challenges and competitors, the platform’s user-friendliness and unique capacity for encouraging engagement carved it a prominent spot in the industry. 

We hope our stats helped you learn more about this versatile app and its contribution to the way we approach work.  


What metrics does Slack track?

(Source: Slack Analytics) 

To see the Slack metrics correctly, you’ll have to open your Slack dashboard. There you’ll find all the relevant info and figures like the different categories of membership, channels, the enterprise grid, and workspaces. 

Furthermore, your dashboard tracks all the metrics of your workload, because all the different parameters are clearly stated, named, and related to one another.

What does Slack analytics show?

(Source: Slack Workspace Administration) 

To see your Slack info and statistics, you can export JSON and text files with reports, stats, and performance indicators about the whole team. All the info will be shown to you in an unambiguous manner, and the figures will be easily readable. 

This way, you can get information about things like memberships, status and messages, private and public channels, calls and messages statistics, guests, and much more.

What big companies use Slack?

(Source: StackShare / Slack Fortune 100)

We’ve already mentioned that 77% of Fortune 100 Companies are currently using Slack Connect. However, the most famous Slack partners are IBM, Oracle, Amazon, Walmart, and many more. 

How many people used Slack in 2021?

(Source: Business of Apps)

While the exact number of users in 2021 is not available, it’s estimated that the platform had 18 million users in 2020. Based on the user acquisition tempo in the prior years, the figures for 2021 should be significantly higher. 

Is Slack still popular?

(Source: Kinsta)

The network of Slack users isn’t expanding at the same headlong pace it used to, but the platform is still very popular. 

While Microsoft Teams did take some of Slack’s thunder away, especially when it comes to government organizations and enterprises, Slack statistics show that this platform is still more popular among developers and startups. 


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20 Slack Statistics You’ll Be Surprised to Know in 2024

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