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FastMail

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FastMail delivers security, privacy and reliability for your email, calendars and contacts.

Hosted Email
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Market Share of FastMail

Current Customer(s)

17315

Market Share (Est.)

0.19%

Ranking

#16

Top Competitors and Alternatives of FastMail

The top three of FastMail’s competitors in the Hosted Email category are Microsoft Outlook with 40.61%, Microsoft Exchange Online with 39.74%, 1&1 Email with 3.86% market share.

TechnologyDomainsMarket Share (Est.)Versus page
Microsoft Outlook368582840.61%FastMail vs Microsoft Outlook
Microsoft Exchange Online360696639.74%FastMail vs Microsoft Exchange Online
1&1 Email3503343.86%FastMail vs 1&1 Email
Strato2732123.01%FastMail vs Strato
SiteGround Email Hosting2694212.97%FastMail vs SiteGround Email Hosting
Zoho Mail2000862.20%FastMail vs Zoho Mail
One.com Email Hosting1495201.65%FastMail vs One.com Email Hosting
Rackspace Email1055051.16%FastMail vs Rackspace Email
Network Solutions Email714600.79%FastMail vs Network Solutions Email
Namecheap Private Email662750.73%FastMail vs Namecheap Private Email
GandiMail448600.49%FastMail vs GandiMail
Infomaniak E-mail431920.48%FastMail vs Infomaniak E-mail
Yandex Mail383440.42%FastMail vs Yandex Mail
ProtonMail240340.26%FastMail vs ProtonMail
United Domains Email176570.19%FastMail vs United Domains Email
Names Email Hosting164510.18%FastMail vs Names Email Hosting
Soverin159710.18%FastMail vs Soverin
123-reg Email Hosting158710.17%FastMail vs 123-reg Email Hosting
Aliyun Mail151810.17%FastMail vs Aliyun Mail
LCN Email81560.09%FastMail vs LCN Email
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Popular Comparisons

Top Competitors and Alternatives of FastMail

The top three of FastMail’s competitors in the Hosted Email category are Microsoft Outlook with 40.61%, Microsoft Exchange Online with 39.74%, 1&1 Email with 3.86% market share.

FastMail vs Microsoft Outlook

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FastMail vs Microsoft Exchange Online

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FastMail vs 1&1 Email

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FastMail vs Strato

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FastMail vs SiteGround Email Hosting

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FastMail vs Zoho Mail

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FastMail vs One.com Email Hosting

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FastMail vs Rackspace Email

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Customers of FastMail

Around the world in 2025, over 17315 companies have started using FastMail as Hosted Email tool.

CustomersEmployee RangeCityRegionCountrySocial Links
Post Office Ltd10,000+LondonEnglandUnited Kingdom
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SS&C Technologies10,000+WindsorConnecticutUnited States
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Sopra Steria10,000+ParisIle-de-FranceFrance
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Dhani10,000+MumbaiMaharashtraIndia
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Mobily5,000 - 9,999RiyadhAr RiyadSaudi Arabia
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Playa Management Usa, LLC5,000 - 9,999JohannesburgGautengSouth Africa
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The Navigator Company1,000 - 4,999SetubalSetubalPortugal
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1Password1,000 - 4,999TorontoOntarioCanada
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KinetIT-a Babel Company1,000 - 4,999MadridMadridSpain
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Oesia1,000 - 4,999Rivas-VaciamadridMadridSpain
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FastMail Customers by Products and Services

The top three products and services offering customers that use FastMail for Hosted Email are Web Development (122), Web Design (97), Graphic Design (73).

Customers

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FastMail Customers by Employee Size

The majority of FastMail's customers for the hosted-email category fall in the company size of 0 - 9 employees (10838 companies), 10 - 19 employees (2351 companies), 20 - 49 employees (2121 companies).

Employee Size

FastMail Customers by Geography

The top three geographies of FastMail for hosted-email are the United States with 9589(62.91%), United Kingdom with 1761(11.55%), Australia with 1243(8.15%) customers respectively.

Customers

Employees of FastMail

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Also see other Products/Services by FastMail in:

Hosted Email

FAQ

Find answers to the most often asked questions by users.

Who are the top FastMail competitors?

FastMail’s Top competitors in the hosted-email category are Microsoft Outlook, Microsoft Exchange Online, 1&1 Email. You can view a full list of FastMail competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of FastMail and 40,000 other technologies on the internet. You can also compare FastMail and its feature with top competitors here : FastMail vs Microsoft Outlook FastMail vs Microsoft Exchange Online FastMail vs 1&1 Email.

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What is FastMail customer distribution based on company size?

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What is FastMail market share in the hosted-email?

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What are the top countries that use FastMail?

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What are the top industries that use FastMail?

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