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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)

175

Market Share (Est.)

0.18%

Ranking

#14

Top Competitors and Alternatives of STunnel

The top three of STunnel’s competitors in the Other Security category are Termly with 50.71%, Cookie Script with 27.21%, Microsoft Azure AD MFA with 6.32% market share.

TechnologyDomainsMarket Share (Est.)Versus page
Termly4810150.71%STunnel vs Termly
Cookie Script2580927.21%STunnel vs Cookie Script
Microsoft Azure AD MFA59906.32%STunnel vs Microsoft Azure AD MFA
Microsoft Graph39014.11%STunnel vs Microsoft Graph
McAfee SECURE26062.75%STunnel vs McAfee SECURE
Aruba ClearPass16641.75%STunnel vs Aruba ClearPass
Snyk16401.73%STunnel vs Snyk
Resolve Systems9641.02%STunnel vs Resolve Systems
ServiceNow Security Operations7540.79%STunnel vs ServiceNow Security Operations
BitSight4980.53%STunnel vs BitSight
FireEye Network Security4460.47%STunnel vs FireEye Network Security
Syniverse2910.31%STunnel vs Syniverse
Qualys Cloud Platform2640.28%STunnel vs Qualys Cloud Platform
Evolv Technology1710.18%STunnel vs Evolv Technology
Faronics Deep Freeze1560.16%STunnel vs Faronics Deep Freeze
Sonitrol1470.15%STunnel vs Sonitrol
McAfee Foundstone1450.15%STunnel vs McAfee Foundstone
Fireblocks1390.15%STunnel vs Fireblocks
Junos Space Security Director1240.13%STunnel vs Junos Space Security Director
ZeroFOX1160.12%STunnel vs ZeroFOX
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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 50.71%, Cookie Script with 27.21%, Microsoft Azure AD MFA with 6.32% 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 175 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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Soren Blog100 - 249ChicagoIllinoisUnited States
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wolfSSL100 - 249EdmondsWashingtonUnited States
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W4rri0r20 - 49RichardsonTexasUnited States
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MemCachier0 - 9San FranciscoCaliforniaUnited States
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Firewall Consultants0 - 9SeattleWashingtonUnited States
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AddictiveTips0 - 9HalifaxNova ScotiaCanada
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SECURITEINFO.COM0 - 9NozayIle-de-FranceFrance
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declension systems ltd0 - 9LondonEnglandUnited Kingdom
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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 Cloud Services (14), Data Analytics (13), Digital Transformation (12).

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 (48 companies), 100 - 249 employees (31 companies), 1,000 - 4,999 employees (22 companies).

Employee Size

STunnel Customers by Geography

The top three geographies of STunnel for other-security are the United States with 82(56.55%), United Kingdom with 17(11.72%), France with 10(6.90%) 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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