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Isovalent

Acquired

Founded 2017 · 167 employees on LinkedIn · 7 known investors

Creator of the open source Cilium project, providing eBPF-based Kubernetes networking, security and observability software.

Also known as Isovalent, Inc.

Founders & leadership

Isovalent was founded in 2017 by Dan Wendlandt.

DW
Dan WendlandtinFounder · VP of Cloud Native Networking & Security (Leading Isovalent @ Cisco)

Investors · 7

Also in the syndicate · 3

GoogleGrafana LabsMirae Asset Capital

Company profile

researched Aug 2026

Isovalent is the company behind the open source Cilium project and the commercial product Isovalent Cilium Enterprise, which addresses networking, security and observability for cloud native and Kubernetes environments. Its technology is built on eBPF, a Linux kernel mechanism that allows new networking and security logic to run inside the kernel of mainstream Linux distributions. Isovalent's stated focus is the "Day 2" phase of Kubernetes adoption, where the platform's built-in networking layer lacks the security, observability, reliability and performance required for mission-critical workloads.

Isovalent Cilium Enterprise combines a hardened distribution of open source Cilium with customer support and enterprise-only features, including multi-cloud networking, dynamic service load balancing, service identity-aware network firewalling, network and API-layer observability, transparent network encryption, runtime security observability and enforcement, and sidecar-free service mesh. The company also led development of Tetragon for runtime security. Beyond Cilium, Isovalent co-maintains the eBPF codebase upstream in the Linux kernel, maintains ebpf.io, hosts the eBPF Summit, and led the creation of the eBPF Foundation alongside founding members Meta, Netflix, Google and Microsoft. It publishes free browser-based hands-on labs covering Cilium, eBPF and Tetragon, and maintains a public GitHub organization with dozens of repositories, including the eCHO (eBPF & Cilium Office Hours) project and infrastructure tooling in Go, Terraform/HCL and TypeScript.

Founding story

The company was founded in 2017 by the creators of the Cilium open source project.

Business model

Open source core with a commercial enterprise offering: Isovalent develops the freely available Cilium and Tetragon projects and sells Isovalent Cilium Enterprise, a hardened, supported distribution with additional proprietary networking, security and observability capabilities.

Commercial subscription/support for Isovalent Cilium Enterprise sold to enterprises and telcos.

Traction

As of September 2022, Cilium had 463 contributors, 12,800 GitHub stars and more than 12,000 members in its community Slack, and was in use at enterprises including Adobe, Bell Canada, Capital One, Datadog, Palantir, IKEA and Sky.

Latest developments

Cisco completed its acquisition of Isovalent on April 12, 2024. Isovalent's technologies are being positioned as a cornerstone of the Cisco Security Cloud, and Cisco stated a commitment to continue supporting the eBPF, Cilium, Tetragon and related open source communities.

Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Positioned as the leading company behind Cilium and eBPF. As of September 2022 Cilium was described as the de facto standard for secure and observable cloud native connectivity, selected as the default in managed Kubernetes offerings including Google Kubernetes Engine, Google Anthos and Amazon EKS Anywhere, and was the only container network interface at CNCF incubation level, with graduated status targeted for the first half of 2023.

Isovalent originated Cilium and co-maintains eBPF upstream in the Linux kernel, positioning its products at a kernel-level infrastructure layer where connectivity, firewalling, load balancing and monitoring are handled in the kernel itself rather than in hardware appliances or hypervisors, giving consistent visibility and control across underlying cloud infrastructure.

Technology

eBPF-based data plane in the Linux kernel. Cilium provides container networking (CNI), load balancing, identity-aware firewalling, transparent encryption, network and API-layer observability and sidecar-free service mesh; Tetragon provides runtime security observability and enforcement. The company co-maintains upstream eBPF code in the Linux kernel and has forked/contributed to related projects such as Microsoft's ebpf-for-windows.

Go-to-market

Direct enterprise sales of Isovalent Cilium Enterprise, supported by open source community adoption of Cilium, free hands-on labs and community programs (eBPF Summit, ebpf.io, eCHO office hours), plus distribution through partnerships with major cloud providers and Kubernetes distributions such as Red Hat OpenShift and SUSE Rancher.

Platform engineering teams at large enterprises and telecommunications operators running Kubernetes in production, across verticals including finance and payments, e-commerce and retail, insurance, telecommunications, government, data analytics and entertainment. Named users include Adobe, Bell Canada, Capital One, Datadog, Palantir, IKEA and Sky.

Geography

Headquartered in Mountain View, California at the time of its 2022 Series B; acquired by San Jose, California-based Cisco.

History

Isovalent was founded in 2017 by the creators of Cilium. In September 2022 it announced a $40 million Series B led by Thomvest Ventures, with M12 (Microsoft's Venture Fund) and Grafana Labs joining existing strategic investors Google and Cisco. Cisco announced its intent to acquire Isovalent in December 2023 and completed the acquisition on April 12, 2024, with the Isovalent team joining Cisco's Security Business Group under Jeetu Patel.

Risks & controversies

Cisco's forward-looking statements cited risks including uncertainty about the acquisition's impact on Isovalent's business, retention of Isovalent employees, and Cisco's ability to successfully integrate the company and realize expected benefits. Financial terms of the acquisition were not disclosed; CRN reported that The Information said Cisco paid $650 million in cash.

Compiled by commissioned research from 5 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Cilium community Slack membersSep 202212,000 members
Cilium GitHub starsSep 202212,800 stars
Cilium open source contributorsSep 2022463 contributors
Public GitHub repositories in Isovalent organizationAug 202658 repositories
Reported acquisition price paid by CiscoApr 2024$650M

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 3

launches, deals, and filings
Apr 2024
Cisco completes acquisition of Isovalent

Cisco announced completion of its acquisition of Isovalent, Inc. The Isovalent team joined the Cisco Security Business Group, and Isovalent's technologies were positioned as a cornerstone of the Cisco Security Cloud. Financial terms were not disclosed; CRN cited an report by The Information that Cisco paid $650 million in cash. The deal was first announced in December 2023.

source ↗

Sep 2022
Isovalent raises $40M Series B led by Thomvest Ventures

Isovalent closed a $40 million Series B led by Thomvest Ventures, with M12 (Microsoft's Venture Fund) and Grafana Labs joining existing strategic investors Google and Cisco; additional investors included Andreessen Horowitz, Mango Capital and Mirae Asset Capital.

$40M source ↗

Sep 2022
Azure Networking and Isovalent relationship announced

Microsoft's Azure Core Engineering stated that through a relationship between Azure Networking and Isovalent, the companies would bring eBPF and Cilium experience and integration to Azure customers.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

Research sources · 5

primary sources listed

5 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Isovalent do?
Creator of the open source Cilium project, providing eBPF-based Kubernetes networking, security and observability software.
Who founded Isovalent?
Isovalent was founded by Dan Wendlandt in 2017.
Who are Isovalent's investors?
Isovalent's investors include Andreessen Horowitz, Cisco Investments, Mango Capital, Thomvest Ventures.