Makizono Keiichi
Executive Officer & CIO @ SoftBank
Yokohama, Japan
Makizono Keiichi is a Series C investor at SoftBank in Yokohama focused on Computer and Software. Makizono Keiichi is based out of Yokohama, Kanagawa, and is the Executive Vice President and CIO of SoftBank. Makizono previously worked at Cisco Systems as an SE Manager. Makizono Keiichi attended Meiji University.
- Total investments:
- 1
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Makizono Keiichi invests in
Stages Makizono Keiichi invests in
Countries Makizono Keiichi invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Computer 1 (100%)
- Software 1 (100%)
- Information Technology 1 (100%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Arrcus offers hyper-scale networking software that provides software-powered network transformation for the interconnected world. The company's software improves human experiences by connecting people, machines, and data, and it provides simple-to-use software that spans the infrastructure, from routers to switches to servers, allowingbusinesses to unify manageability and control with the ease of a single network solution that works across the entire network infrastructure and simplifies operations.Arrcus was established in 2016 in San Jose, California by Devesh Garg. | $28M / Series C / May 21, 2021 |
Co-Investors
About SoftBank
SoftBank provides fixed-line, mobile telephony, internet telecommunications, and digital television products. It is a multinational telecommunications and internet corporation focused on broadband, fixed-line telecommunications, e-commerce, the internet, technology services, finance, media and marketing, and other businesses. The company operatesthrough four segments.The mobile communications segment provides mobile communications services, produces and distributes online games for smartphones and other devices, offers mobile broadband services, provides supply chain solutions, handset protection, and insurance, buy-back and trade-in services, omnichannel solutions, and financial services, and sells mobile devices such as iPhones, iPads, and SoftBank smartphones. The Sprint segment offers mobile and fixed-line voice and data transmission services for individual consumers, businesses, government subscribers, and resellers in Puerto Rico and the U.S. and sells mobile devices and accessories. The fixed-line telecommunications segment offers telecom services such as fixed-line telephone and data communications services to corporate customers and broadband services to individual customers. The internet segment is engaged in the operation of the Yahoo! Japan portal, the sale of internet advertising, the operation of e-commerce sites, the provision of membership services, the sale and marketing of data centers, the provision of online automobile-related information, and the operation of the internet affiliate system.SoftBank also generates and sells electricity from renewable energy sources; provides payment processing, invoice collections, and computation services for businesses; distributes video, voice, and data content via media; operates the IT information site ITmedia; provides solutions and services for online businesses; and operates online games and software downloads. Additionally, it is involved in the ownership of professional baseball teams, the operation of baseball games, the management and maintenance of baseball stadiums and other sports facilities, and the procurement of funds by issuing preferred securities.
SoftBank Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Andrew Kovacs
Global Head of Communications
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Gary Ginsberg
Global Head of Communications
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Kimikazu Kato
Data Scientist
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Kunihiro Fujinaga
Executive Vice President, Deputy Head of Enterprise Unit
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Makizono Keiichi
Executive Officer & CIO
|
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FAQ
What does Makizono Keiichi invest in?
Makizono Keiichi invests primarily in Computer, Software and Information Technology startups, most often at Series C stage. Most of the 1 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 Makizono Keiichi?
Public channels for Makizono Keiichi include LinkedIn, the website linked on this profile 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 Makizono Keiichi last invest?
The most recent investment recorded for Makizono Keiichi closed in May 2021. Shizune tracks 1 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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