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STunnel

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Stunnel is a proxy designed to add TLS encryption functionality to existing clients and servers without any changes in the programs' code.

Other Security
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Market Share of STunnel

Current Customer(s)

89

Market Share (Est.)

0.10%

Ranking

#15

Top Competitors and Alternatives of STunnel

The top three of STunnel’s competitors in the Other Security category are Termly with 55.94%, Cookie Script with 31.50%, Microsoft Azure AD MFA with 2.85% market share.

TechnologyDomainsMarket Share (Est.)Versus page
Termly4928255.94%STunnel vs Termly
Cookie Script2774831.50%STunnel vs Cookie Script
Microsoft Azure AD MFA25142.85%STunnel vs Microsoft Azure AD MFA
Microsoft Graph23842.71%STunnel vs Microsoft Graph
McAfee SECURE16641.89%STunnel vs McAfee SECURE
Aruba ClearPass8570.97%STunnel vs Aruba ClearPass
Snyk7360.84%STunnel vs Snyk
Resolve Systems4900.56%STunnel vs Resolve Systems
ServiceNow Security Operations4610.52%STunnel vs ServiceNow Security Operations
BitSight2280.26%STunnel vs BitSight
FireEye Network Security2260.26%STunnel vs FireEye Network Security
Qualys Cloud Platform2150.24%STunnel vs Qualys Cloud Platform
Syniverse1610.18%STunnel vs Syniverse
Junos Space Security Director1000.11%STunnel vs Junos Space Security Director
Sonitrol870.10%STunnel vs Sonitrol
Faronics Deep Freeze830.09%STunnel vs Faronics Deep Freeze
McAfee Foundstone750.09%STunnel vs McAfee Foundstone
Fireblocks720.08%STunnel vs Fireblocks
Stellar Phoenix Mac Data Recovery680.08%STunnel vs Stellar Phoenix Mac Data Recovery
Tilgin Open HGA670.08%STunnel vs Tilgin Open HGA
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Popular Comparisons

Top Competitors and Alternatives of STunnel

The top three of STunnel’s competitors in the Other Security category are Termly with 55.94%, Cookie Script with 31.50%, Microsoft Azure AD MFA with 2.85% market share.

STunnel vs Termly

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STunnel vs Cookie Script

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STunnel vs Microsoft Azure AD MFA

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STunnel vs Microsoft Graph

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STunnel vs McAfee SECURE

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STunnel vs Aruba ClearPass

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STunnel vs Snyk

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STunnel vs Resolve Systems

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Customers of STunnel

Around the world in 2025, over 89 companies have started using STunnel as Other Security tool.

CustomersEmployee RangeCityRegionCountrySocial Links
Asana1,000 - 4,999San FranciscoCaliforniaUnited States
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Student Shelter In Computers250 - 499LahorePunjabPakistan
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Nanit100 - 249New York CityNew YorkUnited States
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Wolfssl100 - 249EdmondsWashingtonUnited States
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AddictiveTips20 - 49HalifaxNova ScotiaCanada
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Soren20 - 49ChicagoIllinoisUnited States
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W4rri0r20 - 49RichardsonTexasUnited States
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Stunnel10 - 19OsseoMinnesotaUnited States
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Firewall Consultants0 - 9SeattleWashingtonUnited States
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SecuriteInfo.com0 - 9MassyIle-de-FranceFrance
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STunnel Customers by Products and Services

The top three products and services offering customers that use STunnel for Other Security are Software Development (8), Cloud Services (4), Higher Education (4).

Customers

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STunnel Customers by Employee Size

The majority of STunnel's customers for the other-security category fall in the company size of 10,000+ employees (25 companies), 0 - 9 employees (13 companies), 100 - 249 employees (13 companies).

Employee Size

STunnel Customers by Geography

The top three geographies of STunnel for other-security are the United States with 47(60.26%), United Kingdom with 9(11.54%), India with 8(10.26%) customers respectively.

Customers

Employees of STunnel

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Also see other Products/Services by STunnel in:

Other Security

FAQ

Find answers to the most often asked questions by users.

Who are the top STunnel competitors?

STunnel’s Top competitors in the other-security category are Termly, Cookie Script, Microsoft Azure AD MFA. You can view a full list of STunnel competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of STunnel and 40,000 other technologies on the internet. You can also compare STunnel and its feature with top competitors here : STunnel vs Termly STunnel vs Cookie Script STunnel vs Microsoft Azure AD MFA.

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What is STunnel customer distribution based on company size?

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What is STunnel market share in the other-security?

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What are the top countries that use STunnel?

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What are the top industries that use STunnel?

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