Startup profile · funding coverage
Illumio
Zero-trust microsegmentation platform for data-center and cloud breach containment.
Stage
growth
Status
private
Coverage
full
Why Illumio is interesting
a16z seed investor since 2013; category leader in adaptive segmentation before Thoma Bravo-led F.
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
Funds linked from Illumio's profile — open a fund page for stage focus and related deal articles.
Industries
Cybersecurity Enterprise SaaS
Industry hub pages are rolling out from our fund-derived baseline taxonomy.
FAQs about Illumio
Funding context and why this company shows up in venture coverage.
Illumio provides zero-trust microsegmentation software that limits lateral movement during breaches in data-center and cloud environments.
Andreessen Horowitz (see /fund/andreessen-horowitz), General Catalyst (/fund/general-catalyst), and 8VC (/fund/8vc) are among publicly listed investors.
Illumio raised a $125M Series D in 2017 and a $225M Series F in 2021 at a reported $2.75B valuation.
Perimeter firewalls fail once attackers are inside; microsegmentation contains blast radius by enforcing policy at the workload level.
Illumio remains private as of July 2026.
Last updated: 2026-07-24