AI funding rounds in May 2025: 11 rounds
- ClickHouse raises $350M Series C, . Databases. Led by Khosla Ventures. ClickHouse builds an open source column-oriented database for real-time analytics, offered as a managed cloud service.
- ClickHouse raises $100M Debt, . Databases. Led by Stifel, Goldman Sachs. ClickHouse builds an open source column-oriented database for real-time analytics, offered as a managed cloud service.
- Snorkel AI raises $100M Series D, . Data infrastructure. Led by Addition. Snorkel AI provides expert training and evaluation data and a data development platform for AI models.
- Hex raises $70M Series C, . Analytics. Hex is a collaborative data workspace for notebooks, analytics and AI-assisted data analysis.
- Legora raises $80M Series B, . AI apps. Led by General Catalyst, ICONIQ. Builds an AI workspace for lawyers to research, review and draft legal work.
- Starburst raises a Strategic round, . Data infrastructure. Starburst sells a Trino-based query engine and data lakehouse platform that lets companies analyze data where it lives across clouds and on-premises systems.
- Glass Imaging raises $20M Series A, . AI apps. Led by Insight Partners. Glass Imaging makes GlassAI, neural image processing software that improves photo quality on smartphones and other compact cameras.
- Statsig raises $100M Series C, . Developer tools. Led by ICONIQ Growth. Statsig provides feature flags, experimentation and product analytics for software teams.
- Perplexity raises $500M Growth, . AI apps. Led by Accel. Perplexity runs an AI answer engine that searches the web and returns cited answers.
- Astronomer raises $93M Series D, . Data infrastructure. Led by Bain Capital Ventures. Astronomer runs Astro, a managed data orchestration platform built on Apache Airflow for scheduling and operating data and AI pipelines.
- LlamaIndex raises a Strategic round, . AI infrastructure. LlamaIndex provides a framework and cloud platform, including LlamaParse, for building AI agents over enterprise documents and data.