Dynatrace Buys US Startup Arize for $915 Million to Strengthen Its Position in the AI Race

Dynatrace has agreed to buy Arize in a deal valued at $915 million. The price is made up of about $815 million in cash plus replacement equity awards for Arize employees who join Dynatrace. The company says it will fund the purchase with cash on hand and/or its existing credit facility.

For Dynatrace, this is the largest acquisition in its history. That matters because the company has been buying before, but on a much smaller scale. Its earlier deals included Bindplane, Metis, Runecast and Rookout, and in most of those cases the price was not even disclosed.

Arize brings a very specific set of tools to the table. Founded in 2020 and based in the San Francisco Bay Area, it sells software that helps engineering teams test, evaluate and monitor machine learning models, large language models and AI agents in production. The pitch is practical rather than glossy: catch hallucinations, spot drops in output quality, and notice data drift before customers do. Arize is also known for Phoenix, its open-source tool, and the community built around it.

The strategic logic is pretty clear. Dynatrace thinks AI delivery is split between two toolsets: one for model and agent evaluation, another for application and infrastructure monitoring. Its bet is that problems often sit somewhere in between, whether that shows up as bad output, a failed transaction, GPU issues or infrastructure trouble. With Arize, Dynatrace wants to connect pre-release evaluation with live production monitoring.

The deal is expected to close later this quarter or early in Dynatrace’s third fiscal quarter, pending regulatory review. Arize’s founders, Jason Lopatecki and Aparna Dhinakaran, will join Dynatrace at closing, and Lopatecki will keep leading the Arize team while reporting to CEO Rick McConnell. Dynatrace says the acquisition should add about 200 basis points to ARR growth in fiscal 2027, while lowering non-GAAP operating margin by about 175 basis points. Its second-quarter guidance and share buyback programme stay unchanged.