Head-to-head · Container Networking Software
Calico Open Source vs Isovalent Enterprise for Cilium
Calico Open Source leads on 0 checks, Isovalent Enterprise for Cilium on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreCalico Open Source · 9.2/10
- Free planonly Calico Open Source
- Most featuresCalico Open Source · 5 of 5
Calico Open Source scores higher on our rubric for container networking software: 9.2 against 8.4 out of 10; our editors rank them #2 and #7.
Calico Open Source is the better fit for free, full-featured Kubernetes networking. Isovalent Enterprise for Cilium is the better fit for enterprise Cilium networking for self-hosted clusters.
- Calico Open Source fits best
Free, full-featured Kubernetes networking
- Isovalent Enterprise for Cilium fits best
Enterprise Cilium networking for self-hosted clusters
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Side by side
| Feature | Calico Open Source 9.2/10 Visit ↗ | Isovalent Enterprise for Cilium 8.4/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.2 | 8.4 |
| Ranking | #2 in Container Networking Software | #7 in Container Networking Software |
| Best for | Free, full-featured Kubernetes networking | Enterprise Cilium networking for self-hosted clusters |
| Pricing model | Free | Paid |
| Starting price | Free plan | Pricing on request |
| Free plan | ✓ (best) | Not checked yet |
| Free trial | — | — |
| Deployment | Self-hosted | Cloud, Self-hosted |
| Support | Community, Docs | Docs |
| Integrations | 4 integrations | 4 integrations |
| Built for | Small business, Mid-market, Enterprise | Mid-market, Enterprise |
| Features Calico Open Source 5/5 · Isovalent Enterprise for Cilium 0/5 | ||
| CNI plugin | ✓ (best) | Not checked yet |
| Network policies | ✓ (best) | Not checked yet |
| Egress control | ✓ (best) | Not checked yet |
| Multi-cluster networking | ✓ (best) | Not checked yet |
| Encryption in transit | ✓ (best) | Not checked yet |
| Specs | ||
| Supported platforms | Kubernetes, Linux, Windows, OpenStack, virtual machines, bare metal | Not checked yet |
| Our review | ||
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| Our verdict | Calico Open Source is an open-source container networking and security platform maintained by Tigera. It is designed for teams running Kubernetes or other CNI-compatible orchestrators that need networking, policy enforcement, encryption,… Read the review → |
Isovalent Enterprise for Cilium is a commercial Kubernetes networking and security platform built on Cilium and eBPF. It is intended for platform, cloud-native, NetOps, and enterprise infrastructure teams managing self-hosted Kubernetes… Read the review → |
Strengths and trade-offs
Calico Open Source — where it wins
- Free and open source with CNI networking and policy enforcement
- Supports eBPF, nftables, iptables, Windows, and VPP data planes
- Adds WireGuard, cluster mesh, and Whisker traffic observability
Where it doesn't
- Its breadth may exceed the needs of simpler Kubernetes deployments
- Requires self-hosted operation across supported infrastructure
- Advanced capabilities can add architectural and operational complexity
Isovalent Enterprise for Cilium — where it wins
- Identity-aware L3/L4 and L7 policies with network segmentation
- eBPF forwarding, encryption, routing, overlays, and load balancing
- Hubble provides cluster-wide traffic-flow observability
Where it doesn't
- Pricing requires a sales conversation and is not published as a dollar price
- Designed for self-hosted Kubernetes and OpenShift environments
- Commercial licensing differs from open-source Cilium alternatives
- Calico Open Source9.2/10 · Free plan
A free, broad Kubernetes networking stack with policy, encryption, and multi-cluster support.
Visit CalicoFull verdict → - Isovalent Enterprise for Cilium8.4/10 · Pricing on request
A self-hosted Cilium platform for policy-controlled Kubernetes networking and visibility.
Visit CiscoFull verdict →
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- Antrea vs Isovalent Enterprise for Cilium
All container networking software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update