Lip-Bu Tan
About Lip-Bu Tan
Lip-Bu Tan is based in Santa Clara. <cite index="1-1">He is the founder and chairman of Walden International and a founding managing partner of Walden Catalyst Ventures.</cite> Wikipedia says Walden was founded in 1987.
<cite index="5-1">He was CEO of Cadence Design Systems from 2009 to 2021.</cite> <cite index="5-1">Intel appointed him CEO in March 2025.</cite> He is not listed as a company founder in Crunchbase.
In 2020 he and Young Sohn <cite index="2-1">started Walden Catalyst, a firm focused on early-stage deep tech.</cite>
Crunchbase counts 28 investments by Tan personally, with no lead investments and no recorded exits. Crunchbase does not give a portfolio company count.
Press releases name him as an angel in several rounds. <cite index="3-1">TechCrunch reported that RadixArk previously raised angel capital from investors including Tan.</cite> Tan also appears as an individual investor, separate from Walden Catalyst, in Virtue AI's 2025 seed and Series A announcement.
Crunchbase shows 22 AI investments since 2023. The AI portfolio it lists includes Contextual AI, Asato, Aurascape, Alcion, Pokee AI, Corintis, Sycamore, Clockwork Systems, RadixArk, Guardrails AI, Tryndbuy and Together AI.
The Lounge deals desk records three recent AI rounds that include him: RadixArk (Seed, $100M), Sycamore (Seed, $65M) and Hang Ten Systems (Seed, $53M).
<cite index="4-1">RadixArk's $100 million seed was announced in May 2026 and was led by Accel.</cite> <cite index="5-2">Sycamore announced a $65 million seed led by Coatue and Lightspeed, with Tan among its angels.</cite>
<cite index="6-1">Tan's bio lists his focus as semiconductors and components, cloud and edge infrastructure, data management and security, and AI and machine learning.</cite> In a November 2025 post on X, he wrote about learning from <cite index="7-1">agentic AI seed and pre-seed startup investments</cite> through Walden Catalyst and Salience Capital.
Walden Catalyst <cite index="8-1">backs early-stage deep-tech companies in the U.S., Europe and Israel.</cite> Tan has not published a personal check size, so none is given here.
- RadixArk: AI infrastructure company behind the SGLang inference engine. Tan was an early angel before its May 2026 launch.
- Sycamore: enterprise AI agent startup. Tan was an angel in its $65M seed announced in March 2026.
- Virtue AI: AI security company. Tan was an individual investor in its $30M seed and Series A, announced in April 2025.
- Contextual AI, Asato, Aurascape, Alcion, Pokee AI, Corintis, Clockwork Systems, Guardrails AI, Tryndbuy, Together AI: listed in his Crunchbase AI portfolio. Investment dates are not confirmed here.
- committee100.org/members/lipbutan
- en.wikipedia.org/wiki/Lip-Bu_Tan
- newsroom.intel.com/corporate/intel-appoints-lip-bu-tan-chief-executive
- crunchbase.com/person/d0395d31-ba4c-b86a-c27e-b389d5a2c66f
- techcrunch.com/2026/01/21/sources-project-sglang-spins-out-as-radixark
- sg.finance.yahoo.com/news/radixark-launches-100-million-seed-130000663
- techcrunch.com/2026/03/30/former-coatue-partner-raises-huge-65m-seed-f
- businesswire.com/news/home/20250415693312/en/Virtue-AI-Raises-%2430-Mi
AI portfolio
Investing activity
Lip-Bu Tan has made 28 investments according to Crunchbase. 22 of those investments since 2023 were in AI companies, including Contextual AI, Asato, Aurascape, Alcion and Pokee AI.
Lip-Bu Tan appears in 4 AI deals tracked by the Lounge deals desk, rounds totalling $258M. The rounds are mostly Seed, with a median round size of $65M and the largest at $100M. The most recent are Hang Ten Systems (Seed, $53M, Sep 2026), NeoCognition (Seed, $40M, Apr 2026) and Sycamore (Seed, $65M, Mar 2026).
Lip-Bu Tan most often invests alongside Walden Catalyst Ventures, Xora Innovation, Xora and Temasek’s early-stage investment platform, and the companies they back on Lounge are mostly in AI and AI Infrastructure.
Deals
Frequently asked questions about Lip-Bu Tan
Does Lip-Bu Tan invest in AI startups?
Yes. Crunchbase lists 22 AI investments since 2023, including RadixArk, Sycamore, Together AI and Guardrails AI.
What stage does Lip-Bu Tan invest in?
His recent AI rounds are seed rounds, and he has described his recent activity as seed and pre-seed investing in agentic AI. Walden Catalyst, his firm, backs early-stage deep tech.
What is Lip-Bu Tan's check size?
No personal check size is public, so we do not state one.
Who is Lip-Bu Tan?
He is CEO of Intel, a role he has held since March 2025. He is also the founder and chairman of Walden International and a former CEO of Cadence Design Systems.
Does Lip-Bu Tan lead rounds?
Crunchbase records no lead investments for him personally. In the RadixArk and Sycamore rounds he joined as an angel behind other lead investors.
Where can founders contact Lip-Bu Tan?
He has a public LinkedIn profile and posts on X as @LipBuTan1. He has no personal website that we found.
Is Lip-Bu Tan an angel investor?
Yes. Lip-Bu Tan invests personally as an angel. Crunchbase counts 28 investments.
What AI companies has Lip-Bu Tan invested in?
Lip-Bu Tan's AI investments include Contextual AI, Asato, Aurascape, Alcion, Pokee AI, Corintis, Sycamore and Clockwork Systems. The 4 rounds on Lounge are listed on this page with amounts, dates and co-investors.
Where is Lip-Bu Tan based?
Lip-Bu Tan is based in Santa Clara, United States.
What stage does Lip-Bu Tan invest at?
In the rounds tracked on Lounge, Lip-Bu Tan has invested at Seed, with a median round of $65M.