Slack
Slack is a single workspace that connects users with the people and tools they work with everyday, no matter where they are what they do.
Market Share of Slack
Current Customer(s)
623650
Market Share (Est.)
87.64%
Ranking
#1
Top Competitors and Alternatives of Slack
The top three of Slack’s competitors in the Unified Communications category are monday.com with 2.52%, PBworks BusinessHub with 1.65%, Bitrix24 with 1.11% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| monday.com | 17944 | 2.52% | Slack vs monday.com |
| PBworks BusinessHub | 11737 | 1.65% | Slack vs PBworks BusinessHub |
| Bitrix24 | 7934 | 1.11% | Slack vs Bitrix24 |
| Mitel | 7152 | 1.01% | Slack vs Mitel |
| Cisco Collaboration | 5248 | 0.74% | Slack vs Cisco Collaboration |
| MangoApps | 4025 | 0.57% | Slack vs MangoApps |
| RingCentral | 3793 | 0.53% | Slack vs RingCentral |
| Crestron | 3690 | 0.52% | Slack vs Crestron |
| Slack enterprise | 2896 | 0.41% | Slack vs Slack enterprise |
| Genesys PureCloud | 2727 | 0.38% | Slack vs Genesys PureCloud |
| Five9 | 2694 | 0.38% | Slack vs Five9 |
| Front | 2115 | 0.30% | Slack vs Front |
| 3CX | 1697 | 0.24% | Slack vs 3CX |
| 8x8 Communications Platform | 1666 | 0.23% | Slack vs 8x8 Communications Platform |
| Grasshopper | 1500 | 0.21% | Slack vs Grasshopper |
| Talkdesk | 1255 | 0.18% | Slack vs Talkdesk |
| Amdocs | 1158 | 0.16% | Slack vs Amdocs |
| Jive Voice | 784 | 0.11% | Slack vs Jive Voice |
| Glia | 763 | 0.11% | Slack vs Glia |
| Dialpad | 754 | 0.11% | Slack vs Dialpad |
Popular Comparisons
Top Competitors and Alternatives of Slack
The top three of Slack’s competitors in the Unified Communications category are monday.com with 2.52%, PBworks BusinessHub with 1.65%, Bitrix24 with 1.11% market share.
Slack vs monday.com
Slack vs PBworks BusinessHub
Slack vs Bitrix24
Slack vs Mitel
Slack vs Cisco Collaboration
Slack vs MangoApps
Slack vs RingCentral
Slack vs Crestron
Customers of Slack
Around the world in 2025, over 623650 companies have started using Slack as Unified Communications tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Salesforce | 10,000+ | San Francisco | California | United States |     |
| University Of Waterloo | 10,000+ | Waterloo | Ontario | Canada | |
| WeTest.net | 10,000+ | Shanghai | Shanghai | People's Republic of China | |
| Stanford University | 10,000+ | Stanford | California | United States | |
| IEEE Circuits and Systems Society (CASS) | 10,000+ | Piscataway | New Jersey | United States | |
| NASA - National Aeronautics & Space Administration | 10,000+ | Washington, D.C. | Washington, D.C. | United States | |
| Friends of OpenJDK (Foojay.io) | 10,000+ | Sunnyvale | California | United States | |
| Enyata | 10,000+ | Lagos | Lagos | Nigeria | |
| STEMINIST / СТЕМІНІСТ 🇺🇦 Non-governmental organization | 10,000+ | Dnipro | Dnipro | Ukraine | |
| Going Forward Into Employment (GFIE) | 10,000+ | London | England | United Kingdom | |
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Slack Customers by Products and Services
The top three products and services offering customers that use Slack for Unified Communications are Marketing (10615), Digital Marketing (8362), Social Media (7708).
Customers
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Slack Customers by Employee Size
The majority of Slack's customers for the unified-communications category fall in the company size of 20 - 49 employees (217777 companies), 100 - 249 employees (156129 companies), 0 - 9 employees (107570 companies).
Employee Size
Slack Customers by Geography
The top three geographies of Slack for unified-communications are the United States with 331330(65.48%), United Kingdom with 44556(8.81%), Canada with 28023(5.54%) 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 unified-communications category are monday.com, PBworks BusinessHub, Bitrix24. 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 monday.com Slack vs PBworks BusinessHub Slack vs Bitrix24.
What is Slack customer distribution based on company size?
What is Slack market share in the unified-communications?
What are the top countries that use Slack?
What are the top industries that use Slack?
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