Doppel, a cybersecurity company specialising in AI-driven social engineering defence, has secured $35m in a Series B funding round.
The investment round, which brings the company’s total funding to $54.4m, was led by Bessemer Venture Partners. Other participants included new investors 9Yards Capital and Sozo Ventures, alongside existing backers a16z, South Park Commons, Strategic Cyber Ventures, Script Capital, and Sabrina Hahn. The round valued the company at $205m.
Doppel develops a security platform that identifies and neutralises social engineering threats targeting organisations and their stakeholders. Its flagship product, Doppel Vision, offers real-time visibility across digital channels including domains, email, social media, and mobile apps. By using large language models (LLMs) and human-led threat analysis, it removes malicious infrastructure and protects brands from phishing, deepfakes, impersonation, and other forms of digital fraud.
With the new funding, Doppel aims to further enhance its product suite and scale its services across sectors.
Since its Series A in January 2024, Doppel has reported 400% growth in enterprise customers, a 90% overall customer increase, and tripled annual recurring revenue. The company also noted an eightfold expansion in revenue from existing clients and has maintained a 230% compound annual growth rate since 2022.
Bessemer Venture Partners partner Elliott Robinson said, “Doppel is quickly emerging as the market leading social engineering defense company by leveraging its proprietary AI-powered approach that is critical in today’s environment as these new threats become increasingly sophisticated for corporation’s brands, executives and employees.
“We’ve been blown away by the company’s rapid growth and product efficacy in curbing the hyper-personalized attacks that challenge their customers, and look forward to seeing the company continue to roll out new offerings for the enterprise.”
Secure Consult CEO and founder David M. Gordon said, “At Secure Consult, we view Executive Protection not just as a service, but as a cornerstone of modern risk management.
“Our transformative partnership with Doppel allows us to stay ahead of emerging threats, delivering real-time, intelligence-driven solutions that span the entire threat lifecycle—from discovery to resolution. Together, we’re redefining what proactive protection means in an increasingly complex world.”
Doppel CEO Kevin Tian said, “We’re really excited to partner with Bessemer Venture Partners, a firm that understands what it takes to build a generational, category-defining company. We’ll use these funds to double down on our core products, serve the rapidly growing demand from enterprises across all sectors, and build the first social engineering defense platform.”
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