---
title: "Forerunner Ventures Joins depthfirst $80M Series B in AI Security"
description: "Forerunner Ventures participated in depthfirst’s $80M Series B, an applied AI lab securing the world’s software, in a round led by Meritech Capital."
date: 2026-03-31T00:00:00.000Z
tags: ["forerunner-ventures", "series-b", "cybersecurity", "artificial-intelligence", "startup-funding"]
source: https://venturecapitaltracker.com/2026-forerunner-ventures-depthfirst-80m-series-b
---

# Forerunner Ventures Joins depthfirst $80M Series B in AI Security

> Forerunner Ventures participated in depthfirst’s $80M Series B, an applied AI lab securing the world’s software, in a round led by Meritech Capital.

**Forerunner Ventures** participated in **depthfirst's $80M Series B**, announced March 31, 2026, backing an applied AI lab working to secure the world's software. The round was led by Meritech Capital.

## Key facts

- **Investor:** Forerunner Ventures (participant)
- **Company:** depthfirst (AI-native cybersecurity / applied AI lab)
- **Round:** $80M Series B
- **Date:** March 31, 2026
- **Lead:** Meritech Capital
- **Other investors:** Accel, Box Group, Liquid 2 Ventures, The House Fund, and others

## Why this matters

The depthfirst round shows Forerunner Ventures extending beyond pure consumer brands into AI-native infrastructure, a stated Fund VII focus. Forerunner also drew attention in early 2026 for a $227M SEC-filed position in newly public Chime.

## Sources

1. depthfirst $80M Series B (Businesswire, via Dealroom): https://dealroom.co/investors/forerunner-ventures/
2. Forerunner Ventures portfolio (Caplight): https://www.caplight.com/investor/forerunnerventures