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)
373626
Market Share (Est.)
16.26%
Ranking
#3
Top Competitors and Alternatives of Slack
The top three of Slack’s competitors in the Communication category are Whatsapp Business with 40.99%, Microsoft Office 365 with 18.67%, Intercom with 5.87% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Whatsapp Business | 941802 | 40.99% | Slack vs Whatsapp Business |
| Microsoft Office 365 | 429020 | 18.67% | Slack vs Microsoft Office 365 |
| Intercom | 134900 | 5.87% | Slack vs Intercom |
| Quip | 49564 | 2.16% | Slack vs Quip |
| Skype | 37564 | 1.63% | Slack vs Skype |
| Agile CRM | 27970 | 1.22% | Slack vs Agile CRM |
| GoToWebinar | 23423 | 1.02% | Slack vs GoToWebinar |
| Asana | 19671 | 0.86% | Slack vs Asana |
| Twilio | 17242 | 0.75% | Slack vs Twilio |
| Avaya | 14449 | 0.63% | Slack vs Avaya |
| Verizon | 13202 | 0.57% | Slack vs Verizon |
| DonorPerfect | 9628 | 0.42% | Slack vs DonorPerfect |
| ON24 | 8912 | 0.39% | Slack vs ON24 |
| Breezy HR | 8622 | 0.38% | Slack vs Breezy HR |
| Bitrix24 | 8353 | 0.36% | Slack vs Bitrix24 |
| Mitel | 7371 | 0.32% | Slack vs Mitel |
| Recruiterbox | 7206 | 0.31% | Slack vs Recruiterbox |
| Ryver | 7026 | 0.31% | Slack vs Ryver |
| PBworks BusinessHub | 6896 | 0.30% | Slack vs PBworks BusinessHub |
| Wechat Work | 6526 | 0.28% | Slack vs Wechat Work |
Popular Comparisons
Top Competitors and Alternatives of Slack
The top three of Slack’s competitors in the Communication category are Whatsapp Business with 40.99%, Microsoft Office 365 with 18.67%, Intercom with 5.87% market share.
Slack vs Whatsapp Business
Slack vs Microsoft Office 365
Slack vs Intercom
Slack vs Quip
Slack vs Skype
Slack vs Agile CRM
Slack vs GoToWebinar
Slack vs Asana
Customers of Slack
Around the world in 2025, over 373619 companies have started using Slack as Communication tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Daikin Applied | 10,000+ | Minneapolis | Minnesota | United States |     |
| Purolator | 10,000+ | Mississauga | Ontario | Canada | |
| Swatch Group | 10,000+ | Biel/Bienne | Bern | Switzerland | |
| Medical College Of Wisconsin | 10,000+ | Milwaukee | Wisconsin | United States | |
| Mphasis | 10,000+ | Bengaluru | Karnataka | India | |
| SSA Marine | 10,000+ | Seattle | Washington | United States | |
| Emirates NBD | 10,000+ | Dubai | Dubai | United Arab Emirates | |
| Octapharma | 10,000+ | Charlotte | North Carolina | United States | |
| Ardagh Group | 10,000+ | Luxembourg | Luxembourg | Luxembourg | |
| MoneyGram International | 10,000+ | Dallas | Texas | 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 (8508), Digital Marketing (6903), Social Media (6595).
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 (123967 companies), 0 - 9 employees (72198 companies), 100 - 249 employees (70515 companies).
Employee Size
Slack Customers by Geography
The top three geographies of Slack for communication are the United States with 175253(59.39%), United Kingdom with 31026(10.51%), Canada with 16749(5.68%) 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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