Multifactor Raises $15M Seed
Multifactor raises $15M in seed funding led by Nexus Venture Partners to provide secure, shareable account access for humans and AI agents.
Multifactor Raises $15M Seed
Multifactor, a San Francisco-based security startup providing secure access to online accounts for humans and AI agents, has announced a $15 million seed funding round. This new capital injection will support the company as it scales its platform to meet surging demand for secure, shareable account access in the era of agentic AI.
Investors
The round was led by Nexus Venture Partners, with participation from Y Combinator, Taurus Ventures, Honeystone Ventures, Flex Capital, Pioneer Fund, Ritual Capital, Liquid2 Ventures, and individual investors Mohan Warrior, Padma Warrior, Gokul Rajaram, and Mathilde Collin.
Multifactor Use of Funds
Multifactor plans to use the new funding to accelerate the development and adoption of its post-quantum security platform, which allows users to share online account access with humans and AI agents without exposing underlying credentials or passwords.
About Multifactor
Founded in 2025 by Vivek Nair and Colin Roberts,Multifactor is a cybersecurity company developing a post-quantum security platform for the AI era. Its technology enables users to securely share access to online accounts with humans and AI agents without exposing passwords or underlying credentials. Using capability-based access controls and advanced cryptographic techniques, the platform provides secure, revocable, and auditable account access designed to protect against emerging AI-driven security threats.
Funding Details
Company Website: https://multifactor.com
Company: Multifactor
Raised: $15M
Round: Seed
Funding Date: December 4, 2025
Lead Investor: Nexus Venture Partners
Additional Investors: Y Combinator, Taurus Ventures, Honeystone Ventures, Flex Capital, Pioneer Fund, Ritual Capital, Liquid2 Ventures, Mohan Warrior, Padma Warrior, Gokul Rajaram, Mathilde Collin
Company Website: https://www.multifactor.com
Software Category: Cybersecurity
Source: https://www.prnewswire.com/news-releases/yc-f25-startup-multifactor-raises-15m-seed-round-to-make-online-accounts-safe-for-ai-agents-302633496.html
