Greymatter
Greymatter: A security-focused service mesh for complex Kubernetes, hybrid, and multicloud deployments. Ranked #7 of 21 in Service Mesh Platforms by our editors (8.4/10); pricing: Pricing on request · 30-day trial; best for security-focused hybrid and multi-cloud deployments.
At a glance
- Editor score8.4 / 10
- PricingPricing on request · 30-day trial
- Best forSecurity-focused hybrid and multi-cloud deployments
- Free planNo
- Deployment modelHybrid
- Founded2015 · Arlington, Virginia, United States
- Facts checked20 Sep 2026
Where it wins
- Mandatory mTLS with automated certificate lifecycle management
- Cross-cluster federation with trust propagation and policy enforcement
- Supports both sidecar and sidecarless service-mesh deployments
Where it doesn't
- Pricing requires direct contact with the vendor
- Verified platform support is focused on Kubernetes
- No perpetual free plan is available
Our verdict on Greymatter
Greymatter is a Zero Trust Networking platform for securing connectivity among applications, APIs, microservices, and AI workloads. It is aimed at organizations managing complex Kubernetes environments across multicloud, hybrid, private-cloud, on-premises, edge, or regulated deployments. The product combines service-mesh functions with workload identity, mandatory mTLS, traffic management, policy enforcement, observability, WAF controls, and forensic auditing. Its positioning is particularly relevant to government, defense, and large enterprise teams that need centralized control over service-to-service communication.
Security and governance are the platform’s strongest themes. Greymatter can automate certificate issuance, rotation, and revocation for mandatory mTLS, while real-time service authorization and workload identity support access decisions between services. GitOps-driven policies provide a workflow for enforcing traffic and security rules, and integrations with OPA, SPIRE, OIDC, OAuth2, SIEM tools, and APM tools extend that control into identity, policy, monitoring, and investigation workflows. Federation across clusters and environments adds trust propagation for distributed deployments rather than limiting mesh management to one cluster.
Operationally, Greymatter covers routing, health checks, failover, retries, circuit breakers, telemetry, and proxy filtering through WASM, Lua, and WAF filters. Sidecar and sidecarless implementations give platform teams more than one deployment approach, while integrations with Kubernetes, Istio, Prometheus, Grafana, API gateways, SIEM tools, and APM tools support established ecosystems. Buyers should choose it when security depth, federation, auditability, and hybrid deployment requirements outweigh pricing simplicity. Teams seeking a perpetual free plan, public numeric pricing, or verified support beyond Kubernetes should consider a narrower alternative.
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Greymatter pricing
Greymatter fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Deployment model | Hybrid |
| Proxy architecture | Both |
| mTLS support | Yes |
| Traffic policies | Yes |
| Multi-cluster support | Yes |
| Supported platforms | Kubernetes |
| Free trial | 30 days |
| Deployment | Cloud, Self-hosted |
| Compliance & security | SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS |
| Support | Tickets, Docs |
| Built for | Enterprise (editorial estimate) |
| Integrations | 11 integrations: Kubernetes, Istio, Prometheus, Grafana, SIEM tools, APM tools … |
| Pricing | Pricing on request · 30-day trial |
| Website | greymatter.io |
| Facts checked | 20 Sep 2026 |
Greymatter integrations
Greymatter lists 11 integrations on its own site.
- Kubernetes
- Istio
- Prometheus
- Grafana
- SIEM tools
- APM tools
- API gateways
- OIDC
- OAuth2
- Open Policy Agent
- SPIRE
Alternatives to Greymatter
- IstioA broad, free mesh with sidecar and ambient modes for distributed applications.9.4
- Alibaba Cloud Service MeshA managed Istio-compatible mesh with sidecar, ambient, security, and multi-cluster support.9.2
- Google Cloud Service MeshA broad managed mesh for traffic control, security, observability, and multi-cluster operations.9.0
See all Greymatter alternatives →
Greymatter vs the competition
- Greymatter vs Istio
- Greymatter vs Alibaba Cloud Service Mesh
- Greymatter vs Google Cloud Service Mesh
- Greymatter vs HashiCorp Consul
- Greymatter vs Buoyant Enterprise for Linkerd
- Greymatter vs Linkerd
Compare Greymatter with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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