Union.ai secures $38.1 million to expand its open source AI orchestration stack, as Flyte adoption and Mozilla-backed openness drive faster production-grade AI development.
Union.ai has completed a $38.1 million Series A round, including $19.1 million previously announced, signalling strong investor confidence in open-source AI infrastructure. The round was led by NEA, with participation from Nava Ventures and new investor Mozilla Ventures.
The capital will accelerate product development, expand engineering and field teams, and deepen investment in the company’s open-source community — a strategy executives say is directly translating community traction into commercial scale.
Founded as the enterprise platform for Flyte, a widely adopted open-source AI orchestrator, Union.ai has grown into an end-to-end AI development infrastructure provider. Flyte has crossed 80 million downloads, while its data validation framework Pandera has surpassed 100 million. More than 3500 companies now run AI workloads on infrastructure powered by the platform.
“This round came together as demand for AI orchestration is surging, and our open-source work is translating into clear commercial momentum,” said Ketan Umare, CEO and Co-Founder, Union.ai. “This funding helps us move faster to define the core of that new approach: AI development infrastructure.”
Union.ai positions its platform as a solution to the limits of legacy devtools, enabling dynamic, durable AI workflows, faster deployment, and reduced pipeline maintenance.
The funding also supports Union 2.0 and the next generation of Flyte, adding pure Python workflow authoring, live debugging, runtime decision-making, scalable parallelism, and crash-resilient pipelines.
“We see a shared purpose with Union.ai in building an open software infrastructure for AI development,” said Mohamed Nanabhay, Managing Partner at Mozilla Ventures.
