depthfirst Raises $80M Series B

depthfirst, a San Francisco, California-based applied AI lab, has secured $80 million Series B funding, bringing itd total capital raised to $120 million.

Investors

The funding round was led by Meritech Capital, with participation from Forerunner Ventures and The House Fund. Additional investors in the round include existing backers Accel, Box Group, Liquid 2 Ventures, Alt Capital, and Mantis VC.

depthfirst Use of Funds

depthfirst plans to utilize the newly raised capital to train additional security models across new domains, expand its AI research team, and scale enterprise adoption of its platform.

About depthfirst

Founded in 2025, depthfirst is an applied AI lab developing novel security solutions for businesses facing modern, AI-era threats to their systems. The company’s AI-native security platform General Security Intelligence builds context on a company's code, infrastructure, and business logic to find complex vulnerabilities, focus on the important issues, and provide developers with ready-to-merge fixes. depthfirst's mission is to help secure the world’s software powering society’s critical systems before they are threatened by new-age, AI-empowered bad actors.

Funding Details

Company Website: https://depthfirst.com

Company: depthfirst
Raised: $80M
Round: Series B
Funding Date: March 31, 2026
Lead Investor: Meritech Capital
Additional Investors: Forerunner Ventures, The House Fund, Accel, Box Group, Liquid 2 Ventures, Alt Capital, Mantis VC
Company Website: https://depthfirst.com
Software Category: Artificial Intelligence and Security
Source: https://www.businesswire.com/news/home/20260331071577/en/Applied-AI-Lab-depthfirst-Announces-%2480-Million-in-Series-B-Funding