Keisuke Sogawa
Angel Investor
San Francisco, United States
Keisuke Sogawa is a seed investor in San Francisco focused on Apps and Software. Keisuke Sogawa completed his studies at the Graduate School of Informatics at Kyoto University and joined an IPA Mitou Youth in 2011. He went on to launch WebPay at FluxFlex in Silicon Valley. As the Chief Technology Officer of WebPay, he developed the service infrastructure for credit card payment services. He also worked on the LINE Pay businessas part of the LINE Group after LINE acquired his company. He joined Mercari Group in June 2017. After serving as Merpay CTO and Mercari CISO, he took up his current position as Merpay & Mercoin CISO.
- Total investments:
- 3
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Keisuke Sogawa invests in
Stages Keisuke Sogawa invests in
Countries Keisuke Sogawa invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $482k–$1.9M
Investment Focus
Industry
- Apps 1 (33%)
- Software 1 (33%)
- E-Commerce 1 (33%)
- Manufacturing 1 (33%)
- Information Technology 1 (33%)
Stage
- Seed 2 (67%)
- Funding Round 1 (33%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| HarvestX manufactures fully automatic robots which contributes to the shortage of agricultural human resources and stable food production | $6.9M / Jan 18, 2021 | ||
| HarvestX manufactures fully automatic robots which contributes to the shortage of agricultural human resources and stable food production | $482.1K / Seed / Jan 18, 2021 | ||
| Appify Technologies operates a no-code development service that enables users to create personal e-commerce applications. | $1.9M / Seed / Oct 12, 2020 |
Co-Investors
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FAQ
What does Keisuke Sogawa invest in?
Keisuke Sogawa invests primarily in Apps, Software and E-Commerce startups, most often at Seed and Funding Round stage. Most of the 3 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Keisuke Sogawa's check size?
Keisuke Sogawa typically joins rounds of $482k–$1.9M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Keisuke Sogawa participates in.
How do I contact Keisuke Sogawa?
Public channels for Keisuke Sogawa include LinkedIn, X (Twitter) and Facebook. 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 Keisuke Sogawa last invest?
The most recent investment recorded for Keisuke Sogawa closed in Jan 2021. Shizune tracks 3 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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