Doppel has raised $70m in a Series C round as demand continues to surge for technology capable of countering sophisticated cyber threats.
The company, which specialises in protecting enterprises from advanced impersonation and fraud attacks, completed the round just six months after closing its Series B.
The new funding was led by Bessemer Venture Partners, with the round also attracting first-time backers including CrowdStrike CEO George Kurtz, NTT DOCOMO Ventures, Aurum Partners, and a group of athlete investors led by WNBA players Nneka Ogwumike, Breanna Stewart and Kelsey Plum through the a16z Cultural Leadership Fund.
Returning investors included Andreessen Horowitz, South Park Commons, Script Capital, 9Yards Capital, Sozo Ventures and Strategic Cyber Ventures. The raise brings Doppel’s total funding to $124m and values the business at more than $600m.
Doppel’s core technology focuses on disrupting increasingly complex social engineering attacks fuelled by generative AI. Its platform uses agentic AI and real-time threat mapping to identify impersonations across channels and automate takedowns. It also offers deepfake-driven simulations and employee training to help organisations strengthen human defences. The firm positions itself as a leading provider of multi-channel social engineering defence, aiming to help enterprises protect their brands and senior leadership teams from emerging threats.
The new capital will be deployed to expand Doppel’s product suite, including enhancements to its Digital Risk Protection tools and the continued rollout of its Human Risk Management capabilities. The company said the funds will support rapid innovation, accelerate its international growth plans, and expand hiring across engineering, product, sales and marketing functions.
The platform has gathered significant traction, with 3x ARR growth year on year and a fivefold increase in Fortune 500 customers. Doppel now protects more than 200 organisations globally, including brands such as Coinbase, Ramp, Commerce and Orrick, and serves clients across financial services, energy, technology, industrials, healthcare and media.
Additional milestones this year included the launch of its Simulation product in August, which has already generated strong demand, and its collaboration with OpenAI. Doppel said it has fine-tuned OpenAI models with thousands of expert cybersecurity decisions to build an autonomous agent capable of identifying and neutralising real-time social engineering threats.
Bessemer Venture Partners partner Elliott Robinson said, “We’re thrilled to double down on our partnership with Doppel, as their world-class team is truly unparalleled. In my 20 years of working with startups, Doppel stands out with its incredible speed, massive ambition, and laser focus on execution, which is a clear recipe for success. We believe these qualities will solidify Doppel as the unquestioned leader in social engineering defense for years to come.”
CrowdStrike CEO and founder George Kurtz said, “I’m excited about what Doppel is delivering to combat social engineering attacks. Cybercriminals are using AI, conducting increasingly sophisticated attacks to manipulate and deceive users. Doppel’s traction with Fortune 500 enterprises illustrates market need for social engineering defense (SED) and impressive momentum.”
Commerce security analyst Cayden Larkin said, “As a global, publicly traded company, protecting our business and customers is vital. Doppel is a core layer of our security program, helping us to reduce risk by taking down impersonations across channels, and ultimately safeguarding our brand and reputation. We’re excited by Doppel’s pace of innovation and the impact it will continue to have on our customers and brand.”
A CISO from a Fortune 500 agriscience company said, “As a global brand with highly visible executives, protecting our leadership team is paramount. Doppel has been a game-changer for our corporate security, driving a 93% reduction in exposed executive PII and proving vital to minimizing our risk profile. We are proud to call Doppel a great partner in ensuring our leadership’s safety, and look forward to the continued innovation and impact.”
Doppel CEO and co-founder Kevin Tian said, “We’re proud to have the continued support of returning investors and to welcome new partners to our roster. Their support validates the strength of our vision and the work our team has accomplished. This signals confidence in the path we’re on and reinforces our commitment to driving rapid growth. With this backing, we are positioned to continue scaling aggressively and creating meaningful impact in the market.”
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