Company
Callsign
Where real identity meets intelligent authentication.
Also known as Callsign Limited
- Status
- Operatingas of 2026-09-17
- Business model
- B2B
- Headquarters
- London, United Kingdom
- Customers
- organizations
- Legal name
- Callsign Limited
- callsign.com (opens in a new tab)
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Record updated 17 September 2026
About
Callsign helps organizations recognize their users just like people do, naturally, securely, and without friction.
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