Infisical

Infisical announced $40M in Series B financing on October 27, 2026. Infisical raised a $40 million Series B at a $600 million valuation, led by Elad Gil, to expand security infrastructure for AI agents.

Round details

The financing includes backing from Elad Gil, Gradient, Y Combinator. The company reported a $600M valuation alongside the transaction.

• Round: Series B
• Capital announced: $40M

How the company plans to use the capital

Infisical said it will use the new funding to accelerate product development, expand its engineering and go-to-market teams, and build out its security infrastructure for AI agents as enterprise adoption increases.

Why this matters for GTM teams

Infisical describes its platform as security infrastructure for developers, machines and AI agents, and said AI agents need credentials such as API keys, passwords and authentication tokens to reach critical systems.

Fresh capital is often an operational signal rather than a buying signal by itself. Teams should validate the company’s hiring pattern, product launches, geographic expansion, and technology priorities before choosing the message and timing of outreach.

Source and methodology

This report is based on the company’s announcement and records the disclosed amount, round, investors, location, and stated use of funds. SalesTools Research does not estimate undisclosed valuation or revenue figures.

Primary source: Infisical Series B announcement.