Infisical Secures $40M in Series B Funding at $600M Valuation

Infisical, a San Francisco, CA-based provider of a security infrastructure platform for developers, machines, and AI agents, has raised $40 million in a Series B funding round at a $600 million valuation.

The round was led by Elad Gil, with participation from Gradient and Y Combinator.

The company will use the funding to develop its products, expand its engineering and go-to-market teams, and strengthen its security infrastructure for AI agents as more businesses adopt the technology.

What is Infisical?

Infisical provides security tools that help businesses protect sensitive information, manage access to critical systems, and maintain digital certificates. Its platform helps organizations manage secrets such as API keys, passwords and authentication tokens, along with encryption keys and privileged access.

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As businesses increasingly use AI agents, protecting credentials has become more challenging. AI agents need access to source code, databases, cloud infrastructure and other systems to perform tasks. Giving them direct access to sensitive credentials can create security risks.

Infisical's Agent Vault allows companies to provide AI agents with controlled access to sensitive systems without exposing the underlying credentials.

How Much Funding Has Infisical Raised?

Infisical raised $40 million in its Series B funding round at a $600 million valuation. The company has not disclosed its total funding raised to date or details of previous funding rounds in the information provided.

Who Invested in Infisical’s Series B?

The $40 million round was led by Elad Gil, with participation from Gradient and Y Combinator.

The funding announcement does not specify whether the participating investors are existing investors or new backers.

Why the Funding Matters

Infisical will use the new capital to accelerate product development and expand its engineering and go-to-market teams.

The company also plans to build out its security infrastructure for AI agents. As businesses use AI agents to work with sensitive systems and data, Infisical aims to help organizations manage access while reducing the risk of credential exposure.

Who founded Infisical?

Infisical was founded in 2022 by Vlad Matsiiako, Maidul Islam and Tony. The company is headquartered in San Francisco, California.

"You wouldn't give an employee unrestricted access to every system in your company, and AI agents shouldn't be any different," said Vlad Matsiiako, co-founder and CEO of Infisical. "Agents need access to company systems to do their jobs, but giving them actual passwords and API keys is a major security risk.

"AI agents are becoming a new class of users inside every enterprise, and securing their access will be one of the biggest cybersecurity challenges of the next decade," said Elad Gil. "Vlad and co-founders Maidul and Tony recognized early that AI agents would create an entirely new set of security challenges, and they've built Infisical into a platform that I believe can become essential infrastructure for the AI era."

Market and Business Growth

Infisical serves more than 1,300 customers and 300,000 developers. Its platform secures 10 billion secrets daily, and its open-source project has more than 30,000 stars on GitHub.

Its customers include Airbus, Volkswagen, Hugging Face, OpenRouter, Lucid, First American Financial Corporation, Wise and Clay.

These figures reflect the company's adoption among developers and businesses seeking tools to manage sensitive credentials and secure access to critical systems.

What Happens Next?

Infisical plans to continue developing its security products, expand its engineering and go-to-market teams, and strengthen its infrastructure for AI agents.

The company will focus on helping businesses manage the security risks that arise as AI agents gain access to sensitive systems and enterprise infrastructure.

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