SAN FRANCISCO, May 2, 2025 — Doppel, the trailblazing AI-powered social engineering defense platform, has announced a landmark $35 million Series B funding round, valuing the company at $205 million. This latest round, following a year of explosive enterprise momentum, was led by Bessemer Venture Partners, with additional first-time participation from 9Yards Capital and Sozo Ventures. Returning investors include Andreessen Horowitz (a16z), South Park Commons, Strategic Cyber Ventures, Script Capital, and angel investor Sabrina Hahn.
This fresh infusion of capital brings Doppel’s total funding to $54.4 million and will fuel the company’s rapid product expansion and enterprise adoption as it cements its leadership in the fast-growing field of digital risk protection.
An Unmatched AI-Powered Defense for a New Threat Landscape:
With cyber attackers evolving faster than ever, Doppel has positioned itself as the category-defining leader in protecting enterprises against highly personalized, AI-driven social engineering attacks. Its flagship platform, Doppel Vision, provides proactive defense by mapping, identifying, and dismantling attacker infrastructure — from phishing sites and deepfake content to fake apps and fraudulent social profiles — across all digital attack surfaces.
“Doppel is quickly emerging as the market’s leading social engineering defense company,” said Elliott Robinson, Partner at Bessemer Venture Partners. “Their AI-first approach is exactly what enterprises need as digital threats become more nuanced and hyper-personalized. We’ve been blown away by the company’s growth and product performance, and we’re excited to support their next phase.”
Exponential Growth & Strategic Collaborations:
Since its Series A in January 2024, Doppel has experienced 400% growth in enterprise customers, an impressive 90% increase in overall clientele, and 3x growth in annual recurring revenue (ARR). Existing customer accounts have expanded by 8x, while the company has maintained a 230% compound annual growth rate (CAGR) since 2022.
The company has forged strategic partnerships with organizations like Secure Consult to integrate its AI-powered threat defense into full-spectrum security management programs.
David M. Gordon, CEO and Founder of Secure Consult, noted: “Partnering with Doppel has fundamentally redefined how we approach executive protection and digital risk. It’s not just about reactive defense anymore — it’s about proactive, real-time, intelligence-led security.”
OpenAI Collaboration: AI Agents for Autonomous Cyber Defense
A major factor in Doppel’s product evolution is its work with OpenAI, fine-tuning large language models (LLMs) on thousands of cybersecurity cases curated by Doppel’s expert analysts. The result: the first AI cybersecurity agent capable of autonomously detecting and neutralizing obscure, large-scale social engineering campaigns.
Marc Manara, Head of Startups at OpenAI, commented: “Doppel is a prime example of how AI models paired with domain expertise can reshape an entire industry. Their ability to deliver explainable, actionable AI-driven security solutions is a sign of what’s coming next for cybersecurity.”
Fueling the Future: What’s Next for Doppel
With this Series B funding, Doppel will double down on core product development, scale its engineering and customer success teams, and expand into new verticals. The company also plans to further build out its autonomous AI threat detection agents and expand partnerships with digital security providers globally.
“We’re thrilled to partner with Bessemer and other visionary investors as we build a generational company in enterprise security,” said Kevin Tian, CEO and Co-Founder of Doppel. “This capital gives us the firepower to meet the growing demand for next-gen social engineering defense and deliver category-leading solutions at global scale.”
About Doppel:
Doppel is a San Francisco-based cybersecurity innovator, specializing in AI-powered social engineering defense. Its enterprise-grade platform proactively detects and dismantles phishing, impersonation, deepfake, and fraud threats before they can harm businesses. Through intelligent infrastructure mapping, proprietary AI agents, and seamless integrations, Doppel protects brands, executives, and employees across digital platforms — delivering next-generation digital risk protection.
About Bessemer Venture Partners:
Bessemer Venture Partners is one of the world’s most respected venture capital firms, supporting entrepreneurs from seed to IPO and beyond. With a global portfolio of more than 300 companies — including Pinterest, Shopify, Twilio, LinkedIn, Toast, DocuSign, and Wix — Bessemer backs founders building enterprise, consumer, and healthcare companies that transform industries.
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