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: https://techcrunch.com/2022/11/03/mem-openai-series-a/
Seed
2021-04 $5.6MInvestors 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
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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