Xcout Intel
Callsign
Callsign is an intelligence and technology company specializing in fraud prevention and customer authentication solutions. Headquartered in London, England, the company utilizes unique ensembling methods to accurately verify user identities and prevent fraudulent activities.
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Callsign at a glance
Callsign is a cybersecurity company headquartered in United Kingdom, founded in 2010. It has raised at least $35M across the 2 funding rounds on record, 1 of them with a disclosed amount. Its most recent funding round, Series A, raised $35M in July 2017. Xcout tracks 1 named person at Callsign, including Zia Hayat (CEO and founder). Xcout recorded 3 job postings from Callsign in the last 90 days.
Callsign leadership
- Zia HayatCEO and founder
Callsign funding rounds
At least $35M raised across the 2 rounds on record (1 with a disclosed amount). Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series A | $35M | 1 named | |
| Seed | Undisclosed | 2 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Hiring at Callsign
Xcout recorded 3 job postings from Callsign in the last 90 days, from a hiring record Xcout has kept since July 2026.
The weekly hiring trend, the roles and locations behind it — see Callsign's hiring signals →
Investors
Callsign competitors
A few of Callsign's closest competitors — see the full list of competitors and alternatives →
Pindrop Security, Inc. is an enterprise security company headquartered in Atlanta, Georgia, with a global operational presence. It specializes in access control, authentication, and stopping phone-based fraud through advanced technology solutions.
Certisign is a Brazilian technology company that provides digital certification, electronic signature solutions, and biometric identification services.
Prove provides a digital identity verification platform that helps businesses verify individuals, companies, and AI agents to reduce fraud and streamline digital onboarding. Its services include identity proofing, fraud prevention, account opening, and authentication solutions for industries such as banking, healthcare, fintech, and e-commerce.
Transmit Security provides an enterprise-grade platform that combines customer identity and access management (CIAM), identity verification, and fraud prevention solutions. The company serves enterprises by offering tools for authentication, orchestration, fraud detection, and the management of both human and AI agent interactions.
VU Security is a global cybersecurity company specializing in identity protection and fraud prevention. It offers solutions for verification, authentication, and fraud prevention, supporting over 350 organizations to secure their production from day one.
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More on Callsign in Xcout Intel
- 1 named person with titles, LinkedIn and board committees
- 2 funding rounds with the investors in each, and who they co-invest with
- Weekly hiring history and the mix of roles behind it
- The full competitor set, tracking, exports and API access