Cilium is a company within the Cloud Computing category. Cilium is an open-source software for providing, securing, and observing network connectivity between container workloads. It is built on top of eBPF, a revolutionary Linux kernel technology that allows for high-performance and granular control over networking and security at the kernel level.
Cilium was founded in 2016 and is headquartered in Cupertino, CA.
Cilium is part of Cisco Systems, Inc..
Cilium is rated Leader on the Optimly Brand Authority Index, a measure of how well AI models can accurately describe the brand. The exact score is locked for unclaimed profiles.
AI narrative accuracy for Cilium is Moderate. Significant factual deltas detected. Inconsistent representation across models.
AI models classify Cilium as a Challenger. AI names competitors first.
Cilium appeared in 7 of 8 sampled buyer-intent queries (88%). Cilium dominates technical queries related to 'eBPF networking' and 'Kubernetes CNI', but has a minor gap in 'sidecar-less service mesh' queries where Istio still leads.
Cilium is perceived as the gold standard for eBPF-based Kubernetes networking. AI reliably captures its technical merits but may struggle with the commercial relationship between the project, Isovalent, and Cisco. Key gap: The biggest gap is the clear distinction between the open-source project (Cilium) and the commercial entity (Isovalent) following its acquisition by Cisco.
Of 5 key facts verified about Cilium, 3 are well-documented (likely accurate across AI models), 2 have limited sourcing, and 0 are retrieval-dependent and may be inaccurate without live search.
The specific details of the Cisco acquisition and how it changes the 'Isovalent' product vs. the 'Cilium' project.
Buyers evaluating Cilium typically ask AI models about "best kubernetes cni for ebpf", "cloud native observability with hubble", "ebpf based container networking", and 4 similar queries.
Cilium's main competitors are Istio, Linkerd. According to AI models, these are the brands most frequently named alongside Cilium in buyer-intent queries.
Cilium's core products are Cilium CNI, Hubble (Observability), Tetragon (Security), Cilium Service Mesh.
Cilium uses Free (Open Source) / Enterprise (Cisco/Isovalent).
Cilium serves Cloud-native enterprises, DevOps teams, Platform Engineers, Managed Service Providers (MSPs).
Cilium The first and most widely adopted networking solution to use eBPF to replace legacy iptables, resulting in significantly higher performance and deeper observability.
Brand Authority Index (BAI) tier: Leader (exact score locked for unclaimed brands)
Archetype: Challenger
https://optimly.ai/brand/cilium
Last analyzed: April 11, 2026
Founded: 2016
Headquarters: Cupertino, CA (Cisco/Isovalent)