NebulaGraph is an open-source, distributed graph database engineered by Vesoft for super-large-scale graphs - trillions of edges and vertices - with millisecond latency. Born in 2018 and shipped on GitHub in 2019, it powers graph workloads at Tencent, Meituan, JD Digits, Kuaishou and hundreds of other enterprises tackling fraud detection, recommendation, knowledge graphs and graph RAG.
Sherman Ye is the Founder and CEO of NebulaGraph (vesoft Inc.), the company behind one of the world's most scalable open-source distributed graph databases. After engineering stints at Facebook and Ant Financial — where he worked directly on graph database infrastructure — Ye founded vesoft in 2018 to bring enterprise-grade graph database technology to a market hungry for connected-data insights. NebulaGraph can handle trillions of edges with millisecond latency, and counts Tencent, Meituan, and JD Digits among its users. Ye led the company through a $8M pre-A round in 2020 and a Series A in 2022 led by Jeneration Capital, while pioneering the GraphRAG concept that merges knowledge graphs with large language models.
Mike Tung is the founder and CEO of Diffbot, the company behind the world's largest automated knowledge graph — a continuously-rebuilt database of 10+ billion entities and over a trillion facts extracted from the open web. A UC Berkeley EECS graduate and Stanford AI lab dropout, Tung spent 15+ years building Diffbot with minimal funding (under $15M total) into a platform used by Microsoft Bing, DuckDuckGo, Snapchat, and 400+ enterprises. In January 2025 he launched the Diffbot LLM, an open-source language model grounded in the knowledge graph, achieving top factual accuracy benchmarks among sub-100B models.