Investing Profile

Lip-Bu Tan

VCCEOInvestorAngel

Chairman at Walden International & founding Managing partner at Walden Catalyst Ventures

waldenintl.comSan Jose, California

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Current Investing Position

Investment Range

$100K - $5.0M

Sweet Spot

$1.5M

Investments On Record

Current Fund Size

$122.6M

Lip-Bu Tan's Investments On Record (48)

Company	StageDateRound Size	Total Raised
Aurascape	Series AApr 2025$26M	$39M
Co-investors: Navin Chaddha (Mayfield), Sriram Viswanathan (Celesta)
Celestial AI	Series CMar 2025$250M	$580M
Co-investors: Tony Chao (Applied Ventures), Thomas Tull
C2i Semiconductors	Series UnknownNov 2024$47K	$47K
Contextual AI	Series AAug 2024$80M SeedJun 2023$20M	$100M
Co-investors: Fraser Kelton (Spark Capital), Aaref Hilaly (Bain Capital Ventures), Sarah Guo (Conviction Partners), Marcie Vu (Greycroft), Nathan Benaich (Air Street Capital), Harry Stebbings (20VC), Elad Gil, Amjad Masad
SiMa.ai	Series BApr 2024$70M Series BOct 2022$37M Series BMay 2022$30M	$260M
Co-investors: Navin Chaddha (Mayfield), Jake Flomenberg (Wing Venture Capital), Mike Dauber (Amplify Partners), Daniel Docter (Dell Technologies Capital), Victor Hwang (Msd Capital)
Lamini	Series AApr 2024$25M SeedApr 2024	$25M
Co-investors: Todd Jackson (First Round Capital), Pierre Lamond (Eclipse Ventures), Andrew Ng (AI Fund), Sarah Guo (Conviction Partners), Mike Dauber (Amplify Partners), Drew Houston, Bernard Arnault, Dylan Field
Guardrails AI	SeedFeb 2024$8M	$8M
Co-investors: Apoorva Pandhi (Zetta Venture Partners), Diego Oppenheimer
Asato	SeedDec 2023$8M	$8M
Co-investors: Anthony Lin (Intel Capital), Charles Giancarlo (Operator Collective), Amarjit Gill (Nepenthe Capital)