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On 2026-07-13 Prefect (PrefectIO) announced the acquisition of Dagster Labs; the…

Brief

Prefect announced on July 13, 2026 that it has acquired Dagster Labs, keeping Dagster and Dagster+ as separate, open-source-backed products while merging teams and capabilities. The company says it will combine Dagster’s declarative outcomes/lineage, Prefect’s execution, and FastMCP’s governed access to build a platform for agentic/autonomous orchestration and invest long-term under a profitable company.

Why it matters

On 2026-07-13 Prefect (PrefectIO) announced the acquisition of Dagster Labs; the post by Jeremiah Lowin (@jlowin) and shared by @andrewparker uses the slogan “1+1=3.”

Key details

  • Dagster and Dagster+ will remain distinct products and brands, retain their open-source status and support, and existing/new customers can keep using them unchanged.
  • Prefect says the combined company — which it calls profitable — will combine Dagster’s declarative outcomes and lineage, Prefect’s flexible/durable execution, and FastMCP’s governed access to build an agentic/autonomous orchestration platform and invest for the long term.
Source evidence

1+1=3

Really impressive suite of products coming together

Jeremiah Lowin (@jlowin)

🎉 I’m very excited to share that @PrefectIO is acquiring @dagster!

For years, Prefect and Dagster have raised the bar for each other and our category. That competition produced two exceptional products and two of the strongest open-source communities in the data ecosystem. Today, we’re bringing them together under one profitable company with the scale and financial strength to invest for the long term.

Dagster and Dagster+ will continue as distinct products and brands, supported by many of the same people who built them. We’re committed to continued investment in both products and communities, and existing and new customers can keep using them exactly as they do today. The modern orchestration category has a new center of gravity.

Our ambition extends far beyond consolidating today’s market. The next generation of automation starts with a fundamental question: how do you automate software that is, itself, autonomous?

Agentic orchestration requires both a clear definition of what should be achieved and a runtime capable of following paths that can’t be known in advance. Prefect’s new portfolio gives us a fantastic foundation for that work:

🎯 Dagster brings declarative outcomes and lineage
🚦 Prefect brings flexible, durable execution
🔐 FastMCP brings governed access to the tools and data agents use

We’ll draw on all three as we build a new platform for autonomous software.

We’re combining two of the best orchestration teams in the world at exactly the moment the problem is becoming much bigger. I can’t wait for you to see what we’re building next.

Happy engineering!

Read more here: prefect.io/prefect-acquires-…

Link

Prefect acquires Dagster Labs

Prefect acquires Dagster Labs, bringing together two leading orchestration products for the AI era. Dagster continues under its existing name and open-source license, fully supported.
prefect.io

— https://nitter.net/jlowin/status/2076691061078913429#m