7AI

7AI is an AI-native cybersecurity startup founded in 2024 by Lior Div and Yonatan Striem-Amit, both co-founders of the endpoint detection and response (EDR) company Cybereason, which they left roughly two years after SoftBank acquired a controlling stake in Cybereason. Headquartered in Boston's Back Bay neighborhood (near their former Cybereason office), 7AI builds what it calls a 'foundational AI security' platform: swarms of specialized AI agents that autonomously triage, investigate, and (with authorization) remediate security alerts, aiming to eliminate the repetitive, high-volume work that traditionally consumes human security analysts. The platform integrates with existing detection tools (EDR, cloud logs, IAM systems like Okta) rather than replacing them, uses OpenAI models for reasoning and Anthropic's Claude for code/implementation tasks, and is hosted on AWS.

The company raised a $36 million seed round (first reported publicly around June 2024) backed by Greylock Partners, Spark Capital, and CRV. It emerged from stealth on February 6, 2025 (covered by the Boston Globe and Dark Reading), at which point it had roughly 35 employees and over a dozen enterprise customers. Through 2025 the company rolled out major platform capabilities including Dynamic Reasoning, Enterprise Insights, and Autonomous Remediation (announced at Black Hat 2025), and was named a sample vendor in Gartner's 2025 Hype Cycle for Security Operations (AI SOC Agents category).

In December 2025, 7AI announced a $130 million Series A round led by Index Ventures, with participation from Blackstone (via Blackstone Innovations Investments) alongside returning seed backers Greylock, Spark Capital, and CRV. The round valued the company at approximately $700 million and was widely reported as the largest Series A in cybersecurity industry history, bringing total funding to $166 million. By May 2026 the company reached 100 employees and announced plans to double headcount by year-end, driven in part by faster feature shipping using AI coding tools (including Claude Code). Reported customers/case studies include DXC Technology (whose CISO called it 'the world's largest, most successful AI SOC deployment'), BigID, Duck Creek Technologies, Cole Scott & Kissane, Abacus Insights, and Archaea Energy. In July 2026, at Black Hat USA 2026, 7AI launched 7AI Federated SIEM (allowing customers to query/act on distributed security data without centralizing it into one SIEM) and 7AI Build (a framework letting enterprises and partners build custom agentic workflows and skills on the platform). As of mid-2026 the company reported processing 9M+ investigations/alerts in production and returning over 1 million analyst hours to customer security teams.

Business model

B2B SaaS / enterprise security platform sold via subscription, with an add-on managed service (PLAID ELITE) and a partner extensibility layer (7AI Build).

Enterprise software subscription (platform licensing) plus managed/professional services (PLAID ELITE, DFIR on-demand).