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Doppel

Category: AI in Cybersecurity

Doppel is an AI-native social engineering defense platform that protects brands from phishing, impersonation, and AI-powered attacks using advanced machine learning and behavioral analysis. Doppel was founded in 2022. The company is led by Kevin Tian. Based in San Francisco, California, United States. Team size: 165-187. Total funding raised: $124M. Latest round: Series C, $70.0M, 2025-11, led by Bessemer Venture Partners. Key investors include ["Andreessen Horowitz (a16z)","Bessemer Venture Partners","Sozo Ventures","9Yards Capital","South Park Commons"].

Founded
2022
Headquarters
San Francisco, California, United States
Team size
165-187
Total funding
$124M

Value proposition

Prevents AI-generated social engineering attacks through real-time detection, automated response, and continuous adaptation to evolving threats.

Products and solutions

["Doppel Protect (proactive threat prevention)","Doppel Detect (AI-driven anomaly detection)","Doppel Respond (automated incident mitigation)","Doppel Analyze (threat intelligence dashboard)","Custom API integrations for enterprise security ecosystems"]

Unique value

First AI-native platform specifically designed to combat AI-powered social engineering attacks, combining human-in-the-loop machine learning with behavioral biometrics.

Target customer

Enterprises in high-risk sectors including financial services, energy & utilities, technology/software, industrial/manufacturing, healthcare/life sciences, and media.

Industries served

["Financial Services","Energy & Utilities","Technology & Software","Industrial & Manufacturing","Healthcare & Life Sciences","Media & Entertainment"]

Technology advantage

Proprietary AI models trained on proprietary datasets of social engineering attacks, with patented (pending) algorithms for voice/speech pattern analysis and synthetic media detection.

How they differentiate

Doppel specializes in AI-native social engineering defense, leveraging AI to combat deepfakes and AI-generated threats. It emphasizes real-time threat detection and integrates with platforms like GetReal Security for enhanced protection against AI-powered attacks.

Main competitors

["Bolster","ZeroFox","KnowBe4","PhishFort","Ironscales"]

Key partnerships

["Microsoft Azure Security Ecosystem","Google Cloud Security Partners Program","Palo Alto Networks Prisma Cloud Integration","Darktrace Threat Intelligence Collaboration","Human layer security alliances with Two Sigma and Recorded Future"]

Notable customers

["Fortune 500 companies (specifics unlisted publicly)"]

Major milestones

["Raised $70M Series C at $600M+ valuation (November 2025)","Strategic partnership with GetReal Security (April 2025)","Achieved 165+ employees in 3 years","Named to Fortune Cyber 60 list"]

Growth metrics

3x ARR growth year-over-year; 5x increase in Fortune 500 clients; Team size more than doubled year-over-year

Market positioning

Positioned as a leader in AI-driven cybersecurity for social engineering defense, targeting enterprises requiring advanced protection against phishing, impersonation, and AI-generated threats.

Geographic focus

Primarily focused on North America, with expansion into global markets. Key clients include Fortune 500 companies.

Patents and IP

No publicly disclosed patents as of December 2025, but the company is actively filing in areas of AI-driven threat detection and synthetic identity verification.

About Kevin Tian

Co-founded Doppel in 2022; previously worked at Uber (dispatch systems, flying cars initiative), Lyft (Staff Engineer/Engineering Manager). Holds a Bachelor's Degree from Georgetown University (2012-2016).

Official website: