Takao Yatagai
About Takao Yatagai
Takao Yatagai is listed as an engineer at Crusoe. His LinkedIn profile gives his location as the San Francisco Bay Area and his education as Stanford University.
The profile shows a Best Poster Award from the Stanford Research Conference in April 2021. It also lists volunteer work since 2016 with the 1.50 Club, which raises funds for food-insecure children in the Athens area. Beyond this, his earlier roles and any companies he founded or ran are not public in the sources we found.
The one public angel investment we could confirm is Aristotle's seed round. The announcement lists him among the angel investors, with the title Engineering, Crusoe. He has no public fund, syndicate or angel group that we could find. We found no public statements from him on his investing history, and no Crunchbase profile.
Aristotle raised a $5M seed round, which the Lounge deals desk dates to September 2026. Aristotle is a voice-first AI tutoring platform for students ages 13 to 18. True Ventures led the round, with participation from Wicklow Capital and a group of angels from AI and technology companies. The announcement says the round will fund product and engineering work, team growth and a nationwide U.S. launch. It also says Aristotle had a closed beta before the round, in which more than 1,000 students completed more than 1,500 hours of tutoring.
Stage, sector, geography and check size are not stated publicly by Takao. His one confirmed deal is a seed-stage AI company in education. He works in AI infrastructure through his job at Crusoe, but that does not show what he invests in. We have no public information on his check size.
- Aristotle: voice-first AI tutoring platform for students ages 13 to 18. He took part in its $5M seed round, led by True Ventures, in 2026.
Investing activity
Takao Yatagai appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $5M. The most recent is Aristotle (Seed, $5M, Sep 2026).
Takao Yatagai most often invests alongside True Ventures, Ben Broca, Drew Wadsworth and Wicklow Capital, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Takao Yatagai
Who is Takao Yatagai?
Takao Yatagai is an engineer at Crusoe in the San Francisco Bay Area and a Stanford alumnus, according to his LinkedIn profile. He is also named as an angel investor in Aristotle's seed round.
Has Takao Yatagai invested in AI startups?
Yes. He is listed as an angel in Aristotle's $5M seed round, which the Lounge deals desk dates to September 2026. Aristotle is an AI tutoring company.
What is Takao Yatagai's check size?
His check size is not public. We found no statement from him or from Aristotle's announcement about how much he invested.
What stage does Takao Yatagai invest in?
The only confirmed deal is a seed round. He has not publicly described a stage focus, so founders should not assume one.
How can founders contact Takao Yatagai?
He has a public LinkedIn profile at linkedin.com/in/takao-yatagai. We found no personal website or X account for him.
Is Takao Yatagai an angel investor?
Yes. Takao Yatagai invests personally as an angel.
What AI companies has Takao Yatagai invested in?
Takao Yatagai's AI investments include Aristotle. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Takao Yatagai invest at?
In the rounds tracked on Lounge, Takao Yatagai has invested at Seed, with a median round of $5M.
Who does Takao Yatagai co-invest with?
Takao Yatagai's most frequent co-investors on Lounge are True Ventures (1 deal), Ben Broca (1 deal), Drew Wadsworth (1 deal), Wicklow Capital (1 deal) and Cognition (1 deal).
How can founders reach Takao Yatagai?
Founders on Lounge can see Takao Yatagai's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Takao Yatagai to their Investor Pipeline to track the conversation.