Isovalent, a company behind the rapidly growing open source technologies Cilium and eBPF, has closed a $40M Series B funding round led by Thomvest Ventures. M12 (Microsoft's Venture Fund) and Grafana Labs joined Google and Cisco as existing strategic investors in the company, highlighting the central position that Isovalent occupies in the eBPF and broader cloud native ecosystem. Additional investors include Andreessen Horowitz, Mango Capital, and Mirae Asset Capital.

Isovalent, founded by the creators of Cilium and co-maintainers of eBPF, builds open source software and enterprise solutions for cloud native service connectivity, security, and observability. Cilium is the choice of leading global organizations including Adobe, AWS, Bell Canada, Capital One, Datadog, Google, and many more.