# Illumio

> Zero-trust microsegmentation platform for data-center and cloud breach containment.

## Why it is interesting

a16z seed investor since 2013; category leader in adaptive segmentation before Thoma Bravo-led F.

## Profile

- **Stage:** growth
- **Status:** private
- **Industries:** cybersecurity, enterprise-saas
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Series D (2017): $125M led by J.P. Morgan AM; General Catalyst, 8VC, a16z participated — Illumio news
- Series F (2021): $225M at $2.75B led by Thoma Bravo (not in VCT directory)
- a16z seed investor since 2013; category leader in adaptive segmentation

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/general-catalyst
- https://venturecapitaltracker.com/fund/8vc

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Source: https://venturecapitaltracker.com/startup/illumio