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Kyoko Watanabe, Managing Director at DEFTA Partners

Kyoko Watanabe

Managing Director @ DEFTA Partners

San Francisco, United States

Kyoko Watanabe is a seed investor at DEFTA Partners in San Francisco focused on Medical and Health Care. Kyoko Watanabe is based out of San Francisco, California and is the Managing Director of DEFTA Partners.

Total investments:
2
Last investment:
Lead investor:
50%

Last updated:

Industries Kyoko Watanabe invests in

MedicalHealth CareArtificial IntelligenceAppsMobile

Stages Kyoko Watanabe invests in

SeedSeries A

Countries Kyoko Watanabe invests in

United States

Contacts

TypeContactValidation
Work email
Personal email
Work phone
Personal phone
Socials

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Investment Focus

Industry

  • Medical 2 (100%)
  • Health Care 2 (100%)
  • Artificial Intelligence 2 (100%)
  • Apps 1 (50%)
  • Mobile 1 (50%)
See all 11 industries →

Stage

  • Seed 1 (50%)
  • Series A 1 (50%)

Investments

CompanyDescriptionRoundLinks
InformAI InformAI
InformAI is a technology company dedicated to advancing healthcare through AI-enabled clinical solutions. We specialize in creating sophisticated products for oncology and diagnostic imaging to improve patient outcomes. Leveraging strong partnerships, we deliver impactful solutions in large and fast growing markets. Located in the Texas MedicalCenter in Houston, Texas (largest global medical center), we have access to world renowned medical experts, medical institutions and proprietary datasets. $1.8M / Seed / Jun 26, 2020
Savonix Savonix
Savonix provides a valid and reliable measurement of cognitive function mapped to real world outcomes in domains like cognitive flexibility and on road performance in aging populations. Their customers include doctors, researchers, Fortune 50 insurance, and governments. Their platform provides users with easy to use and accessible tests of theirbrain function in multiple domains from memory to implicit learning that they can complete on a smartphone or tablet – guided and reported on by a virtual clinician. This information can in turn be used to understand risk for dementia and other brain disorders, as well as drive precision medicine in treatment planning and diagnosis. Unique to Savonix is their 3D game platform for testing that drives meta-data which has already resulted in the ability to report on the novel cognitive domain of Implicit Learning without adding a test but deriving it from passive in app performance in gold standard measures. Savonix is the only widely available mobile-ready digital cognitive test for early detection of cognitive change that is backed by decades of research into cognitive testing. They didn’t invent the wheel, they made it affordable, accessible, actionable and scalable. $9.6M / Series A / Apr 25, 2019

Co-Investors

DEFTA Partners

About DEFTA Partners

VC Fund · San Francisco, United States

DEFTA Partners is a venture capital firm focusing on technology. They primarily make seed and first round investments in early stage information technology companies with global opportunities to accelerate growth. DEFTA has offices and partners in the United States, Japan, Israel and the United Kingdom. via: DEFTA Partners

DEFTA Partners Contacts

NameEmailPhoneSocials
Arie Kahana
Arie Kahana Partner
Kyoko Watanabe
Kyoko Watanabe Managing Director
Masa Isono
Masa Isono Principal

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FAQ

What does Kyoko Watanabe invest in?

Kyoko Watanabe invests primarily in Medical, Health Care and Artificial Intelligence startups, most often at Seed and Series A stage. Most of the 2 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

How do I contact Kyoko Watanabe?

Public channels for Kyoko Watanabe include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

When did Kyoko Watanabe last invest?

The most recent investment recorded for Kyoko Watanabe closed in Jun 2020. Shizune tracks 2 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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