Slack
Slack is a single workspace that connects users with the people and tools they work with everyday, no matter where they are or what they do.
Market Share of Slack
Current Customer(s)
592832
Market Share (Est.)
19.30%
Ranking
#2
Top Competitors and Alternatives of Slack
The top three of Slack’s competitors in the Communication category are Whatsapp Business with 39.51%, Microsoft Office 365 with 14.10%, Intercom with 5.25% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Whatsapp Business | 1213789 | 39.51% | Slack vs Whatsapp Business |
| Microsoft Office 365 | 433116 | 14.10% | Slack vs Microsoft Office 365 |
| Intercom | 161360 | 5.25% | Slack vs Intercom |
| Quip | 72166 | 2.35% | Slack vs Quip |
| Skype | 58168 | 1.89% | Slack vs Skype |
| Asana | 51400 | 1.67% | Slack vs Asana |
| Agile CRM | 40229 | 1.31% | Slack vs Agile CRM |
| Avaya | 33451 | 1.09% | Slack vs Avaya |
| Verizon | 28516 | 0.93% | Slack vs Verizon |
| Twilio | 25565 | 0.83% | Slack vs Twilio |
| GoToWebinar | 16262 | 0.53% | Slack vs GoToWebinar |
| Mitel | 15868 | 0.52% | Slack vs Mitel |
| Microsoft Dynamics GP | 12859 | 0.42% | Slack vs Microsoft Dynamics GP |
| Canvas LMS | 12081 | 0.39% | Slack vs Canvas LMS |
| Genesys | 11246 | 0.37% | Slack vs Genesys |
| Ryver | 10973 | 0.36% | Slack vs Ryver |
| Recruiterbox | 10602 | 0.35% | Slack vs Recruiterbox |
| Genesys PureCloud | 10554 | 0.34% | Slack vs Genesys PureCloud |
| PBworks BusinessHub | 10485 | 0.34% | Slack vs PBworks BusinessHub |
| Bitrix24 | 10043 | 0.33% | Slack vs Bitrix24 |
Popular Comparisons
Top Competitors and Alternatives of Slack
The top three of Slack’s competitors in the Communication category are Whatsapp Business with 39.51%, Microsoft Office 365 with 14.10%, Intercom with 5.25% market share.
Slack vs Whatsapp Business
Slack vs Microsoft Office 365
Slack vs Intercom
Slack vs Quip
Slack vs Skype
Slack vs Asana
Slack vs Agile CRM
Slack vs Avaya
Customers of Slack
Around the world in 2026, over 592464 companies have started using Slack as Communication tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| City University Of New York | 10,000+ | New York City | New York | United States |     |
| Penn Medicine, University Of Pennsylvania Health System | 10,000+ | Philadelphia | Pennsylvania | United States | |
| University Of Iowa | 10,000+ | Iowa City | Iowa | United States | |
| Ecobank Transnational Inc. | 10,000+ | Lome | Maritime | Togo | |
| Patch.com | 10,000+ | New York City | New York | United States | |
| Banco De Chile | 10,000+ | Santiago | Santiago Metropolitan | Chile | |
| UW Medicine | 10,000+ | Seattle | Washington | United States | |
| Dassault Systemes | 10,000+ | Velizy-Villacoublay | Ile-de-France | France | |
| Politicnico Di Torino | 10,000+ | Turin | Piedmont | Italy | |
| Hex | 10,000+ | Chicago | Illinois | United States | |
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Slack Customers by Products and Services
The top three products and services offering customers that use Slack for Communication are Marketing (10338), Digital Marketing (8135), Social Media (7461).
Customers
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Slack Customers by Employee Size
The majority of Slack's customers for the communication category fall in the company size of 20 - 49 employees (204121 companies), 100 - 249 employees (144316 companies), 0 - 9 employees (92916 companies).
Employee Size
Slack Customers by Geography
The top three geographies of Slack for communication are the United States with 319190(66.20%), United Kingdom with 41414(8.59%), Canada with 26768(5.55%) customers respectively.
Customers
Employees of Slack
Also see other Products/Services by Slack in:
FAQ
Find answers to the most often asked questions by users.
Who are the top Slack competitors?
Slack’s Top competitors in the communication category are Whatsapp Business, Microsoft Office 365, Intercom. You can view a full list of Slack competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Slack and 40,000 other technologies on the internet. You can also compare Slack and its feature with top competitors here : Slack vs Whatsapp Business Slack vs Microsoft Office 365 Slack vs Intercom.
What is Slack customer distribution based on company size?
What is Slack market share in the communication?
What are the top countries that use Slack?
What are the top industries that use Slack?
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