Anna Zhang
| Anna Zhang | |
| Occupation | Entrepreneur, software engineer |
|---|---|
| Known for | Co-founder and CEO of Nessie |
| Education | Yale University (BS, 2024) |
| Alma mater | Yale University |
Anna Zhang is an American entrepreneur and software engineer who is the co-founder and CEO of Nessie (operating as Nessie Labs, Inc.), a company developing AI-powered personal knowledge management tools. The company, based in San Francisco, participated in Y Combinator's Fall 2025 batch.[1]
Early life and education
Zhang graduated from Yale University with a Bachelor of Science degree in computer science in 2024. She has described a long-standing interest in neuroscience and augmenting human cognition, having conducted neuroscience research at The Rockefeller University during high school.[2]
Career
Before founding Nessie, Zhang worked as an engineer at Amazon, where she was part of the company's recommendation service team. During her time at Amazon, she shipped machine-learning-powered features and led an experiment that the company estimated had a $200 million per year revenue impact.
Zhang co-founded Nessie alongside Tiger Wang, a fellow Yale computer science graduate and former Amazon engineer. The company was accepted into Y Combinator's Fall 2025 batch under the tagline "Shareable AI Brains for Everyone."[3]
Nessie's core product is a desktop application for macOS that transforms scattered conversations from AI chatbots—such as ChatGPT and Claude—into a structured, searchable personal knowledge base. Users can import their AI chat histories in bulk, and the software auto-organizes them into browsable topics. The tool allows users to capture insights from AI conversations as structured notes with preserved context, search across their entire knowledge base, and synthesize past ideas into new insights. The company emphasizes privacy, stating that the content of users' chats and notes is not stored on Nessie's servers.
The company has outlined plans to add integrations with additional context sources such as Apple Notes, Google Docs, and Notion, as well as a sharing feature that would allow users to publish or send topic-specific "brains" to collaborators.
Nessie targets what the company describes as "AI-native thinkers," including founders, researchers, and writers who use AI tools extensively in their work.
References