Microsoft Outlook
Outlook is a product that provides its users with an email service, calendar, and the ability to save and synchronize contacts.
Market Share of Microsoft Outlook
Current Customer(s)
3736722
Market Share (Est.)
94.86%
Ranking
#1
Top Competitors and Alternatives of Microsoft Outlook
The top three of Microsoft Outlook’s competitors in the Email Client category are Amazon WorkMail with 3.49%, Yahoo Business Mail with 1.53%, Zimbra with 0.05% market share.
Popular Comparisons
Top Competitors and Alternatives of Microsoft Outlook
The top three of Microsoft Outlook’s competitors in the Email Client category are Amazon WorkMail with 3.49%, Yahoo Business Mail with 1.53%, Zimbra with 0.05% market share.
Microsoft Outlook vs Amazon WorkMail
Microsoft Outlook vs Yahoo Business Mail
Microsoft Outlook vs Zimbra
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Microsoft Outlook vs Apple Mail
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Customers of Microsoft Outlook
Around the world in 2025, over 3736721 companies have started using Microsoft Outlook as Email Client tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| National Vision Inc. | 10,000+ | Duluth | Georgia | United States |     |
| Atrium Health | 10,000+ | Charlotte | North Carolina | United States | |
| UT Southwestern Medical Center | 10,000+ | Dallas | Texas | United States | |
| Oregon State University | 10,000+ | Corvallis | Oregon | United States | |
| University Of Mississippi Medical Center | 10,000+ | Jackson | Mississippi | United States | |
| University Of Florida | 10,000+ | Gainesville | Florida | United States | |
| Montgomery County Maryland | 10,000+ | Rockville | Maryland | United States | |
| Harvard University | 10,000+ | Newton | Massachusetts | United States | |
| Metropolitan Government Of Nashville & Davidson Cty | 10,000+ | Nashville | Tennessee | United States | |
| Dallas Independent School District | 10,000+ | Dallas | Texas | United States | |
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Microsoft Outlook Customers by Products and Services
The top three products and services offering customers that use Microsoft Outlook for Email Client are Project Management (17280), Marketing (15655), Consulting (12156).
Customers
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Microsoft Outlook Customers by Employee Size
The majority of Microsoft Outlook's customers for the email-client category fall in the company size of 0 - 9 employees (1742673 companies), 20 - 49 employees (845579 companies), 10 - 19 employees (449487 companies).
Employee Size
Microsoft Outlook Customers by Geography
The top three geographies of Microsoft Outlook for email-client are the United States with 1488607(50.83%), United Kingdom with 368556(12.58%), Australia with 212624(7.26%) customers respectively.
Customers
Employees of Microsoft Outlook
Also see other Products/Services by Microsoft Outlook in:
FAQ
Find answers to the most often asked questions by users.
Who are the top Microsoft Outlook competitors?
Microsoft Outlook’s Top competitors in the email-client category are Amazon WorkMail, Yahoo Business Mail, Zimbra. You can view a full list of Microsoft Outlook competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Microsoft Outlook and 40,000 other technologies on the internet. You can also compare Microsoft Outlook and its feature with top competitors here : Microsoft Outlook vs Amazon WorkMail Microsoft Outlook vs Yahoo Business Mail Microsoft Outlook vs Zimbra.
What is Microsoft Outlook customer distribution based on company size?
What is Microsoft Outlook market share in the email-client?
What are the top countries that use Microsoft Outlook?
What are the top industries that use Microsoft Outlook?
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