AegisAI
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Investors
Founders
About
AegisAI is an email security company that builds its own large language models to defend enterprise inboxes against AI-driven spear phishing and social-engineering attacks 12. Founded in 2024 by former Google security executives Cy Khormaee (CEO) and Ryan Luo, the company emerged from stealth less than a year before its Series A 12. Its product, Vanguard, is an autonomous agent that hunts threats beyond the inbox 2.
On 2026-07-23 AegisAI announced a $36M Series A led by Battery Ventures, with participation from existing investors Accel and Foundation Capital, bringing total funding to $49M 123. Capital will scale AegisAI’s fleet of autonomous defense agents, accelerate general availability of Vanguard, and expand enterprise go-to-market 2. The round comes as AI-generated spear phishing grew from 2.8% to 13.9% of all observed phishing in 2025, per data cited in the announcement 2.
Disclaimer: This is a lean profile built from initial round coverage and may be expanded as more information becomes available.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-07-23 | Series A | $36M | Battery Ventures | Accel, Foundation Capital 12 |
What Investors Say
Dharmesh Thakker, General Partner at Battery Ventures: “Email is where enterprise trust lives and generative AI just broke every assumption legacy email security was built on. Cy and Ryan spent a decade building exactly these systems at Google scale.” 2
What Founders Say
Cy Khormaee, Co-founder and CEO: “You cannot patch human trust. If your security program still relies on template-based phishing tests and awareness training, you are training your people to spot last year’s threat, not a capable agent crafting a novel lure just for them.” 2
Cy Khormaee on the market opportunity: “The core idea of building customized, highly advanced agents that can do investigations is going to [determine] who becomes the next dominant security company.” 1
Sources
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Marina Temkin, “AegisAI, founded by former Google security execs, lands $36M to stop AI-driven spear phishing,” TechCrunch, July 23, 2026. Accessed July 24, 2026. https://techcrunch.com/2026/07/23/aegisai-founded-by-former-google-security-execs-lands-36m-to-stop-ai-driven-spear-phishing/↩↩↩↩↩
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“AegisAI Raises $36 Million Series A Led by Battery Ventures to Fight the New Wave of AI Spear Phishing,” PR Newswire, July 23, 2026. Accessed July 24, 2026. https://www.prnewswire.com/news-releases/aegisai-raises-36-million-series-a-led-by-battery-ventures-to-fight-the-new-wave-of-ai-spear-phishing-302833624.html↩↩↩↩↩↩↩↩↩
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“AegisAI Raises $36 Million Series A Led by Battery Ventures to Fight the New Wave of AI Spear Phishing,” Morningstar / PR Newswire, July 23, 2026. Accessed July 24, 2026. https://www.morningstar.com/news/pr-newswire/20260723sf10217/aegisai-raises-36-million-series-a-led-by-battery-ventures-to-fight-the-new-wave-of-ai-spear-phishing↩