London-based Startup Phoebe Secures €15.6 Million Funding

The company addresses live system failures with AI agents that detect, diagnose, and resolve software issues before user disruption.

Founded in 2024, Phoebe’s platform is already in use by early clients such as Trainline and PPRO, helping reduce resolution times by up to 90% and, in some cases, preventing incidents entirely.

Matt Henderson, CEO and co-founder of Phoebe, said: “High-severity incidents can make or break big customer relationships, and numerous smaller problems drain engineering productivity. Software monitoring tools exist, but they aren’t very intelligent and require people to spend a lot of time working out what’s wrong and what to do about it.”

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Phoebe’s key innovation lies in its swarms of AI agents that analyze vast, fragmented system data in real time. These agents test multiple hypotheses simultaneously, assessing potential causes and solutions. Operating continuously in the background, they act like a digital immune system, addressing threats before they impact users.

“With Phoebe supporting the diagnosis, we’ve found that time-to-resolution can be up to 90% faster,” said Henderson.

Phoebe can anticipate certain incidents from early warning signals and implement preemptive fixes before disruptions occur. The company envisions its AI agents as a “software immune system,” ultimately preventing most emerging issues from ever affecting customers.

“AI has transformed how code is written, but software reliability has not kept pace. Phoebe is building a missing layer of contextual intelligence that can help both human and AI engineers avoid software failures. We love the boldness of the team’s vision for a software immune system that preemptively fixes problems,” said Roni Hiranand, Partner at GV.

“Phoebe has already had a real impact on how we investigate and remediate incidents at Trainline. Work that used to take us hours to piece together can now take minutes and that matters when you’re running critical services at our scale. We’re excited to see Phoebe progress and help us operate efficiently,” said Jay Davies, Head of Engineering for Reliability and Operations at Trainline.

Before founding Phoebe, the team built Rangespan, a machine learning startup acquired by Google in 2014, and later led Stripe Europe as CEO and CIO. This experience provided them with deep, hands-on insight into the critical challenges of system uptime and reliability.

About Phoebe

Phoebe is an AI-powered search tool for tech stack data, helping engineering teams resolve issues faster—from minor bugs to major incidents. It can proactively conduct searches to anticipate, identify, and triage emerging problems, streamlining troubleshooting and improving system reliability across complex software environments.