Infisical Secures $40 Million in Series B Funding

The San Francisco-based security platform reaches a $600 million valuation following its latest funding round.

Updated on Oct. 27, 2026 in Startups

Infisical Secures $40 Million in Series B Funding

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Infisical has successfully raised $40 million in a Series B funding round, bringing the security infrastructure company to a $600 million valuation. The investment was led by Elad Gil with participation from Gradient and Y Combinator.

Why it matters

As businesses increasingly rely on automated workflows, platforms that manage secrets and encryption keys for developers and AI agents are becoming essential to enterprise security.

Infisical currently supports over 1,300 customers and provides security infrastructure to 300,000 developers worldwide.

The players

Infisical

A San Francisco-based security company that provides infrastructure for managing secrets, certificates, and encryption keys for developers.

Elad Gil

A prominent investor and entrepreneur who led the Series B investment round for Infisical.

Gradient

A venture capital firm that participated in the investment round to support the growth of the security platform.

Y Combinator

A well-known startup accelerator that provided investment and early-stage support to the company.

The details

The platform specializes in managing certificates, encryption keys, and privileged access for developers, machines, and AI agents. It utilizes an Agent Vault, which allows AI systems to access sensitive environments without compromising credentials.

October 27, 2026: Infisical announced the completion of its Series B funding round.

Market Landscape

The investment underscores a shift toward automating security protocols for AI agents and machine-to-machine interaction. This move positions the company to compete more aggressively in the developer tools sector against established incumbents.

Developers and organizations using the Infisical platform can expect continued development of security features for their AI agents and machine workflows. The increased funding suggests expanded service stability and potential new capabilities for existing users.

The takeaway

Securing machine credentials and encryption keys is becoming a critical bottleneck as AI adoption scales. Companies that prioritize automated security infrastructure can reduce the risk of credential exposure while maintaining developer velocity.