The Paris startup, founded by two former Datadog hands, wants to end the per-byte pricing model just as AI workloads make telemetry explode.
Tsuga, a Paris startup building observability software for the age of AI agents, has raised a $35m Series A, a round that arrives barely six months after it came out of stealth and pitched itself against the very category its founders once helped build.
The round is led by Singular, with General Catalyst returning, both of which had backed Tsuga’s $10m seed in December 2025. They are joined by new investors DST Global and Quantumlight, with Picus and Databricks also taking part.
That brings the company’s total raised to about $45m in roughly half a year, a pace that says as much about investor appetite for AI infrastructure as it does about Tsuga itself.
The 💜 of EU techThe latest rumblings from the EU tech scene, a story from our wise ol' founder Boris, and some questionable AI art. It's free, every week, in your inbox. Sign up now!The pitch starts with a complaint the founders know intimately. Gabriel-James Safar and Sebastien Deprez sold their previous company, Madumbo, to Datadog in 2019, then spent years inside the observability industry before leaving to argue that its business model had aged badly.
