Union.ai, a Bellevue, Washington-based technology company, has completed a $38.1 million Series A funding round. NEA served as the lead investor, joined by Nava Ventures and newcomer Mozilla Ventures. This total encompasses a $19.1 million segment that was previously secured in 2023.
The company operates as the commercial entity supporting Flyte, an open-source platform designed for orchestrating sophisticated machine learning and data processing workflows. Union.ai markets its offerings as comprehensive “AI development infrastructure,” encompassing not only orchestration capabilities but also components related to training, inference, and observability. The company’s mission centers on enabling engineering teams to accelerate their transition from experimental phases to production deployment.
CEO Ketan Umare emphasized in a statement that developing artificial intelligence systems demands a fundamentally distinct methodology compared to conventional software development, noting that engineering teams are increasingly recognizing this reality.
According to the company’s LinkedIn announcement, the funding arrives at a critical juncture in the AI industry. Engineering teams are realizing that traditional software infrastructure and development tools fall short when handling AI development requirements. These legacy systems were constructed for the basic and predictable processes characteristic of traditional data workflows, rather than the unpredictable nature of AI workflows, which require agents capable of adapting and recovering from failures during runtime. Union.ai is establishing itself in the emerging category of AI development infrastructure. The platform enables engineering teams to create dynamic, resilient AI workflows and agents while substantially decreasing the time invested in maintaining fragile pipelines.
The startup reported impressive growth metrics, with revenue expanding threefold in 2025 and its customer base growing 2.6 times. Among Union’s clientele are prominent organizations including Spotify, HederaDx, Carfax, and Hopper.
According to company officials, the capital infusion will support the commercial rollout of Union 2.0 and ongoing enhancement of Flyte 2. Planned improvements include “pure Python” authoring capabilities, enhanced debugging functionality, runtime decision-making features, and crash-resilient workflow systems.
The foundational technology behind Flyte was developed by Umare during his tenure as an engineer at Lyft. His professional background also includes positions at Amazon and Oracle. In 2020, he established Union.ai alongside co-founder Haytham Abuelfutuh.
The organization currently employs over 40 staff members and maintains active recruitment efforts.
The investment landscape shows strong backing for various startups developing backend infrastructure solutions designed to help enterprises transform AI prototypes into dependable production systems. Temporal, a “durable execution” company with roots in the Seattle region, revealed a $300 million funding round just last week.
The growing interest from venture capital firms reflects the recognition that robust infrastructure is essential for companies seeking to operationalize their AI initiatives effectively. As organizations increasingly move beyond AI experimentation toward production deployment, the demand for reliable orchestration and workflow management tools continues to intensify. Union.ai’s funding success underscores the market’s acknowledgment of these
infrastructure needs and the company’s positioning to address them through its Flyte-based platform and expanding suite of AI development tools.