Best Greymatter.io Alternatives & Competitors in 2026

Isovalent Cilium Mesh

Universal networking layer for Kubernetes, VMs, and servers across environments

Avocado Protect

Agentless app zero trust with process-level microsegmentation and runtime protection.

PRODIC Microsegmentación

Network microsegmentation service to contain ransomware and limit lateral movement

Knocknoc

Network allowlisting solution that orchestrates access controls via identity auth

Illumio Zero Trust Security

Zero Trust security platform with microsegmentation and endpoint protection

Tigera Calico Enterprise

Kubernetes security platform for network policy, compliance & observability

Isovalent Enterprise Platform

Enterprise platform for Kubernetes networking, security, and observability

Isovalent Kubernetes Networking

Enterprise Kubernetes networking platform built on Cilium and eBPF

Zentera Zero Trust Security

Zero Trust security platform with microsegmentation and ZTNA capabilities

Byos Secure Lobby

SDN overlay for encrypted, microsegmented remote access to IT/OT endpoints.

HOPZERO Sphere of Trust

Network containment tool using TTL/hop limits to restrict data travel distance.

Akamai Guardicore Segmentation

Microsegmentation solution for preventing lateral movement in networks

Versa Secure SD-LAN

Software-defined LAN switching with Zero Trust security and centralized mgmt.

Aviatrix Zero Trust for Workloads

Zero trust workload protection for VMs, containers, K8s, and serverless

Illumio Policy Compute Engine

Centralized policy engine for microsegmentation and breach containment

Tigera Calico Commercial Editions

Network security & observability platform for Kubernetes environments

Zero Networks Microsegmentation

Microsegmentation platform for network, identity, and remote access controls

Byos Network Hardening

Hardware-enforced microsegmentation platform replacing Jump Boxes.

Byos Secure Embedded Edge

Hardware SOM providing OS-independent microsegmentation for edge devices.

TrueFort Platform

Real-time microsegmentation platform for enterprise security (now defunct).

TrustFour T4 - Protect

Enforces mTLS & NHI credential controls to reduce workload attack surface.

Tempered Airwall

Identity-based zero trust overlay networking to secure and microsegment critical

Romana

Romana automates cloud-native network isolation and distributed firewall policies for Kubernetes and OpenStack environments using topology-aware IPAM without overlays.

Illumio Breach Containment

Breach containment platform with microsegmentation and lateral movement control

Zero Networks Identity Segmentation

Automates identity-based access controls for users, devices, and applications.

cyel Moving Target Security

SDN-based moving target defense that obfuscates network topology and traffic.

HOPZERO DataTravel Security

Network hop-limiting platform that reduces attack surface for MSSPs.

SensorFu Beacon

Continuously tests network isolation/segmentation by detecting unexpected leaks.

Garland Technology P10GSFP+A Data Diode TAP

Hardware data diode TAP enforcing unidirectional 1G/10G network traffic flow.

Netchina X-UGAP-FT/V6.0

Hardware gateway enabling physically isolated, one-way data transfer between networks

Air Gap Network Switch

Scheduled network switch that physically disconnects devices to limit ransomware/malware

Cilium

Cilium is a networking, observability, and security solution with an eBPF-based dataplane.

DuskRise IoT Device

IoT device creating secure network segments for remote workers

Elisity Microsegmentation Platform

Identity-based microsegmentation solution for network access control

Illumio Insights

AI-powered breach containment and zero trust segmentation platform

Illumio Segmentation

Microsegmentation platform preventing lateral movement across hybrid multi-cloud

TCPWave

AI-powered DDI (DNS, DHCP, IPAM) and ADC management platform.