SparkPost
SparkPost provides email delivery services and transactional email for developers.
Market Share of SparkPost
Current Customer(s)
243
Market Share (Est.)
4.66%
Ranking
#5
Top Competitors and Alternatives of SparkPost
The top three of SparkPost’s competitors in the Email Deliverability category are Litmus with 27.03%, SquirrelMail with 17.94%, SocketLabs with 14.37% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Litmus | 1409 | 27.03% | SparkPost vs Litmus |
| SquirrelMail | 935 | 17.94% | SparkPost vs SquirrelMail |
| SocketLabs | 749 | 14.37% | SparkPost vs SocketLabs |
| Email On Acid | 295 | 5.66% | SparkPost vs Email On Acid |
| MasterBase | 203 | 3.89% | SparkPost vs MasterBase |
| PowerMTA | 201 | 3.86% | SparkPost vs PowerMTA |
| WhatCounts | 177 | 3.40% | SparkPost vs WhatCounts |
| Pepipost | 163 | 3.13% | SparkPost vs Pepipost |
| Postmark | 138 | 2.65% | SparkPost vs Postmark |
| SMTP2GO | 136 | 2.61% | SparkPost vs SMTP2GO |
| Netcore Email API | 115 | 2.21% | SparkPost vs Netcore Email API |
| Mailtrap | 103 | 1.98% | SparkPost vs Mailtrap |
| 250ok | 63 | 1.21% | SparkPost vs 250ok |
| turboSMTP | 58 | 1.11% | SparkPost vs turboSMTP |
| SMTP.com | 44 | 0.84% | SparkPost vs SMTP.com |
| BriteVerify | 37 | 0.71% | SparkPost vs BriteVerify |
| DataValidation | 33 | 0.63% | SparkPost vs DataValidation |
| CritSend | 20 | 0.38% | SparkPost vs CritSend |
| EmailDelivered | 19 | 0.36% | SparkPost vs EmailDelivered |
| eDataSource | 15 | 0.29% | SparkPost vs eDataSource |
Popular Comparisons
Top Competitors and Alternatives of SparkPost
The top three of SparkPost’s competitors in the Email Deliverability category are Litmus with 27.03%, SquirrelMail with 17.94%, SocketLabs with 14.37% market share.
SparkPost vs Litmus
SparkPost vs SquirrelMail
SparkPost vs SocketLabs
SparkPost vs Email On Acid
SparkPost vs MasterBase
SparkPost vs PowerMTA
SparkPost vs WhatCounts
SparkPost vs Pepipost
Customers of SparkPost
Around the world in 2026, over 238 companies have started using SparkPost as Email Deliverability tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Stay Ready Conference | 10,000+ | Atlanta | Georgia | United States |     |
| Capital One | 10,000+ | McLean | Virginia | United States | |
| Oracle Corporation | 10,000+ | Austin | Texas | United States | |
| Rutgers University | 10,000+ | New Brunswick | New Jersey | United States | |
| Tech Mahindra | 10,000+ | Pune | Maharashtra | India | |
| Cognizant | 10,000+ | Teaneck | New Jersey | United States | |
| Smiths Group Plc | 10,000+ | London | England | United Kingdom | |
| ACCA | 10,000+ | London | England | United Kingdom | |
| Centene Corporation | 10,000+ | St. Louis | Missouri | United States | |
| iCIMS | 10,000+ | Matawan | New Jersey | United States | |
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SparkPost Customers by Products and Services
The top three products and services offering customers that use SparkPost for Email Deliverability are Email Marketing (12), Crm (10), Digital Marketing (9).
Customers
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SparkPost Customers by Employee Size
The majority of SparkPost's customers for the email-deliverability category fall in the company size of 100 - 249 employees (43 companies), 20 - 49 employees (40 companies), 10,000+ employees (37 companies).
Employee Size
SparkPost Customers by Geography
The top three geographies of SparkPost for email-deliverability are the United States with 119(62.63%), United Kingdom with 19(10.00%), India with 12(6.32%) customers respectively.
Customers
Employees of SparkPost
Also see other Products/Services by SparkPost in:
FAQ
Find answers to the most often asked questions by users.
Who are the top SparkPost competitors?
SparkPost’s Top competitors in the email-deliverability category are Litmus, SquirrelMail, SocketLabs. You can view a full list of SparkPost competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of SparkPost and 40,000 other technologies on the internet. You can also compare SparkPost and its feature with top competitors here : SparkPost vs Litmus SparkPost vs SquirrelMail SparkPost vs SocketLabs.
What is SparkPost customer distribution based on company size?
What is SparkPost market share in the email-deliverability?
What are the top countries that use SparkPost?
What are the top industries that use SparkPost?
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