Zero Networks
An automated, agentless microsegmentation platform that learns network behavior and generates least-privilege access policies without manual rule-writing.
Visit Website ↗Overview
Zero Networks tackles the single biggest reason microsegmentation projects historically stalled or got abandoned: the sheer manual effort of mapping application dependencies and writing enforcement policy by hand for every host and port. Its platform passively observes network traffic to automatically learn communication patterns, then generates and — with customer approval — enforces least-privilege segmentation policies without requiring an agent on every endpoint or weeks of manual policy authoring.
The approach extends beyond static segmentation into dynamic, just-in-time access controls — for example, requiring step-up authentication (like MFA) before allowing an administrative protocol connection (RDP, SSH) that would otherwise be open by default, narrowing the standing attack surface available to a compromised credential or device.
Zero Networks raised a $55M Series C round in June 2025, led by Highland Europe, bringing total funding above $100M; the company reported tripling its customer base and revenue growth of over 300% since its previous raise, citing accelerating adoption of automation-first segmentation as the driver.
Innovation Matrix Assessment
Rapid product expansion into just-in-time MFA-gated access alongside core segmentation, with a 2025 raise explicitly earmarked to accelerate go-to-market and R&D.
Automating policy discovery and generation directly removes the dominant historical barrier to microsegmentation adoption: months of manual dependency mapping and rule authoring.
Tripled customer base and 300%+ revenue growth since its prior round, plus a $55M Series C in June 2025 — strong, independently reported growth signals for a company still early in its funding lifecycle.
Automating what was previously the most labor-intensive part of segmentation (policy authoring) is a genuinely different operating model versus traditional agent-based or manually-configured microsegmentation tools, including Illumio's more mature but more manual-configuration-heavy approach.
Still a relatively young company (founded 2019) with a shorter track record than established segmentation vendors; evidence is mostly early customer testimonials and growth metrics rather than long-run, independently audited outcomes.
Automation-first segmentation directly addresses why so many organizations still lack basic lateral-movement controls years after microsegmentation became a recognized best practice.
Why CISOs Should Care
Zero Networks removes the main practical reason segmentation projects stall — the manual effort of mapping and writing policy — making it realistic for lean security teams to actually deploy lateral-movement controls rather than leaving them as a perpetual roadmap item.
What Makes It Different
Automated, agentless policy discovery and enforcement, plus dynamic MFA-gated access to admin protocols, replaces the manual, agent-heavy configuration model that has limited microsegmentation adoption for over a decade.
The Matrix Verdict
75/100 — MEANINGFUL INNOVATOR
The fastest-growing and most operationally disruptive segmentation vendor in this set, tackling a real, well-documented adoption barrier, but still building the long-run efficacy track record that more established peers like Illumio already have. A Strong, Fast-Rising Contender.
Editorial Note: Claims vs. Verified Findings
The Series C amount, investor, and total funding are independently reported (SiliconANGLE, BusinessWire, Calcalist). Customer-tripling and 300%+ revenue-growth figures are self-reported by Zero Networks in its funding announcement and not independently audited here.
Sources
- Company site — https://zeronetworks.com
- Zero Networks Series C — https://www.businesswire.com/news/home/20250603407926/en/Zero-Networks-Raises-$55M-Series-C-to-Usher-in-the-Era-of-the-Defender
- SiliconANGLE — https://siliconangle.com/2025/06/03/zero-networks-raises-55-million-expand-microsegmentation-zero-trust-solutions/
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