Clef
Clef is secure two-factor with no passwords or tokens.
Market Share of Clef
Current Customer(s)
337
Market Share (Est.)
6.90%
Ranking
#5
Top Competitors and Alternatives of Clef
The top three of Clef’s competitors in the Two Factor Authentication category are Yubico with 31.76%, RSA SecurID with 24.52%, Microsoft Azure Multi-Factor Authentication with 15.98% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Yubico | 1550 | 31.76% | Clef vs Yubico |
| RSA SecurID | 1197 | 24.52% | Clef vs RSA SecurID |
| Microsoft Azure Multi-Factor Authentication | 780 | 15.98% | Clef vs Microsoft Azure Multi-Factor Authentication |
| Google Authenticator | 408 | 8.36% | Clef vs Google Authenticator |
| Symantec VIP | 253 | 5.18% | Clef vs Symantec VIP |
| Authy | 63 | 1.29% | Clef vs Authy |
| inWebo | 48 | 0.98% | Clef vs inWebo |
| Usher | 45 | 0.92% | Clef vs Usher |
| LoginTC | 24 | 0.49% | Clef vs LoginTC |
| TypingDNA | 18 | 0.37% | Clef vs TypingDNA |
| Miracl | 18 | 0.37% | Clef vs Miracl |
| SAASPASS | 16 | 0.33% | Clef vs SAASPASS |
| SecureAuth IdP | 15 | 0.31% | Clef vs SecureAuth IdP |
| privacyIDEA | 13 | 0.27% | Clef vs privacyIDEA |
| Mi-Token | 11 | 0.23% | Clef vs Mi-Token |
| WiKID | 10 | 0.20% | Clef vs WiKID |
| Adaptive Security Manager | 10 | 0.20% | Clef vs Adaptive Security Manager |
| Twizo | 9 | 0.18% | Clef vs Twizo |
| Rublon | 9 | 0.18% | Clef vs Rublon |
| Authenticator Plus | 8 | 0.16% | Clef vs Authenticator Plus |
Popular Comparisons
Top Competitors and Alternatives of Clef
The top three of Clef’s competitors in the Two Factor Authentication category are Yubico with 31.76%, RSA SecurID with 24.52%, Microsoft Azure Multi-Factor Authentication with 15.98% market share.
Clef vs Yubico
Clef vs RSA SecurID
Clef vs Microsoft Azure Multi-Factor Authentication
Clef vs Google Authenticator
Clef vs Symantec VIP
Clef vs Authy
Clef vs inWebo
Clef vs Usher
Customers of Clef
Around the world in 2026, over 337 companies have started using Clef as Two Factor Authentication tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Korean Student Association at The University of Texas at Austin | 250 - 499 | Canada |    | ||
| Joel | 250 - 499 | New York City | New York | United States |  |
| Sklejka Eko S.A. | 250 - 499 | Ostrow Wielkopolski | Greater Poland | Poland | |
| TrackTown Productions | 250 - 499 | Eugene | Oregon | United States | |
| Eci Inc | 250 - 499 | Tiffin | Ohio | United States | |
| B K Express | 100 - 249 | Cary | North Carolina | United States | |
| Modern distropolis Ltd. | 100 - 249 | Malappuram | Kerala | India | |
| AlterConf | 50 - 99 | Beaverton | Oregon | United States | |
| www.heikura.eu | 50 - 99 | United States | | ||
| Dach Bud. ZUH. Czubiński B. | 20 - 49 | Wymiarki | Lubusz | Poland | |
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Clef Customers by Products and Services
The top three products and services offering customers that use Clef for Two Factor Authentication are Web Design (3), Seo (2), Branding (2).
Customers
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Clef Customers by Employee Size
The majority of Clef's customers for the two-factor-authentication category fall in the company size of 0 - 9 employees (236 companies), 20 - 49 employees (35 companies), 10 - 19 employees (34 companies).
Employee Size
Clef Customers by Geography
The top three geographies of Clef for two-factor-authentication are the United States with 123(43.31%), United Kingdom with 55(19.37%), Netherlands with 26(9.15%) customers respectively.
Customers
Employees of Clef
Also see other Products/Services by Clef in:
FAQ
Find answers to the most often asked questions by users.
Who are the top Clef competitors?
Clef’s Top competitors in the two-factor-authentication category are Yubico, RSA SecurID, Microsoft Azure Multi-Factor Authentication. You can view a full list of Clef competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Clef and 40,000 other technologies on the internet. You can also compare Clef and its feature with top competitors here : Clef vs Yubico Clef vs RSA SecurID Clef vs Microsoft Azure Multi-Factor Authentication.
What is Clef customer distribution based on company size?
What is Clef market share in the two-factor-authentication?
What are the top countries that use Clef?
What are the top industries that use Clef?
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