Startup profile · funding coverage
Mem funding, valuation and investors
AI-native note-taking with self-organizing knowledge graph and team collaboration.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series A
$23.5M · November 2022
Latest known valuation
$110M post-money
Series A · November 2022
Total disclosed equity funding
$29M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series a · San Francisco, California
Investors in latest funding
Lead: OpenAI Startup Fund
Overview
Mem is an AI-powered note-taking and knowledge management app that automatically organizes notes and surfaces relevant context. Founded by Stanford alumni including Dennis Ritchie Xu, Mem raised a $5.6M seed in April 2021 led by Andreessen Horowitz with Floodgate participating, followed by a $23.5M Series A in November 2022 led by OpenAI Startup Fund at a $110M post-money valuation.
Why Mem is interesting
Mem bets notes should organize themselves — a16z led $5.6M seed; OpenAI Startup Fund led $23.5M Series A at $110M (2022) as 'action graph' positioning competed with Notion and Obsidian.
Product & use cases
Mem captures notes, meetings, and ideas in a self-organizing workspace. AI links related content, suggests connections, and helps users retrieve knowledge without manual folder hierarchies — positioned as an 'action graph' on top of raw notes.
- Knowledge workers capturing meeting notes with automatic cross-linking
- Teams building shared institutional memory without rigid wiki structure
- Founders and investors organizing research with AI-assisted retrieval
Key facts
- Series A (Nov 2022): $23.5M led by OpenAI Startup Fund at $110M valuation (TechCrunch)
- Seed (Apr 2021): $5.6M led by a16z; Floodgate participated
- Stanford-founded AI-native note-taking platform
- Positioned as self-organizing 'action graph' for knowledge work
Funding history (newest first)
Series A
2022-11 $23.5M Valuation: $110M post-money- OpenAI Startup Fund (lead)
Source: Read source · techcrunch.com
Seed
2021-04 $5.6MSource: Read source · techcrunch.com
Investors in our directory
Funds linked from Mem's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Mem's AI-first architecture predates Notion AI and Copilot in notes — OpenAI Startup Fund's Series A lead validated LLM-native knowledge management as a category.
Note-taking is brutally competitive with low switching costs. Mem must prove AI organization saves enough time vs Notion/Obsidian defaults — OpenAI backing helps model quality but not necessarily retention.
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Notion direct
Dominant workspace app with AI features added; broader templates vs Mem's note-native focus.
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Obsidian direct
Local-first linked notes; power-user community vs Mem's cloud AI automation.
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Roam Research adjacent
Bidirectional linking pioneer; smaller scale but overlapping networked-thought audience.
Notable stories
- OpenAI Startup Fund leading Mem's Series A was an early signal of OpenAI's strategy to back applications built on its models, not just infrastructure.
- Mem launched during the 2020–2021 Roam/Obsidian hype cycle but differentiated on AI automation rather than manual bidirectional linking.
Industries
Market / IPO context
Editorial / static context — not a live quote.
Related funding articles
Venture Capital Tracker pieces that cover Mem's financing or category context.
FAQs about Mem
Practical answers founders, operators, and investors typically search for.
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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.