Seiho Investment Works
Venture capitalKyoto · Seed–Series A · 7 people tracked
Also known as 栖峰投資ワークス株式会社
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Investment thesis
Seiho Investment Works believes a VC's role goes beyond supplying risk capital: it must assess investment eligibility, help portfolio companies build sound management, generate returns commensurate with risk, and demonstrate the social and economic value of innovation. Guided by a principle of 'fairness', the firm invests hands-on in seed to early-stage technology companies nationwide across Japan, spanning healthcare/bio, consumer-facing (BtoC) IT, enterprise (BtoB) IT, and deep tech. It provides operational support from founding through maturity, drawing on decades of experience and networks built at Osaka Small and Medium Business Investment & Consultation.
Source: firm website, verified Sep 20, 2026.
Team · 7 people
from the firm's websiteBorn 1973; graduated from Doshisha University (Economics) and completed a master's in finance at the University of London. Spent 20 years at Osaka Small and Medium Business Investment & Consultation Co., handling venture and SME investments in the Kinki region. Became Representative Director on the firm's founding in August 2017.
Graduate of Keio University (Environmental Information); a certified public accountant and tax accountant. Worked at Panasonic and a Kyoto audit firm (now PwC Japan) before founding his own tax accounting office. At the firm he leads fund management, accounting reporting, and tax matters.
Born 1963; graduated from Osaka Prefecture University (Economics). Long career at Osaka Small and Medium Business Investment & Consultation Co., including roles as investment division head and director, supporting roughly 500 SMEs and startups. Joined in the current role in 2025.
Born 1981; graduated from the University of Electro-Communications (quantum physics engineering). Worked at Toshiba Information Systems on system development and project management, then became an angel investor, company representative, IT consultant, and a sourcing lead at a Singapore accelerator VC. Joined in the current role in 2023.
Graduate of the University of Tokyo (Law), with graduate degrees from Osaka Institute of Technology (IP) and the University of Washington (Law). Partner attorney at Nakanoshima Chuo Law Office; attends the firm's board/investment committee and advises the management team.
Graduate of Doshisha University (Law). Worked at Nanto Bank and Nomura Securities (investment banking) before becoming representative director of Optimus Advisors. Advises on M&A and capital alliances and participates in the firm's weekly investment meetings.
Born 1998; graduated from Waseda University (Sociology). Began his career at Osaka Gas in sales promotion, then worked in finance and back-office roles at a sales-tech startup and in business-turnaround consulting before joining in the current role in 2023.
What they invest in
from 20 of 31 portfolio companiesSaaS ×7Future of Work ×5AI & Machine Learning ×4Enterprise Software ×4Healthtech ×3AgTech ×2Consumer ×2Creator Economy ×2
HQs:Japan×19United States×1
Investments · 31 tracked
founders shown can be your intro pathINGAGE develops and provides Re:lation, a cloud-based communication platform designed for customer-facing teams to manage individual customer interactions.
Cloud ComputingEnterprise SoftwareSaaSSales TechTokyo, JP
和田 哲也(代表取締役CEO)
Co-investorsDIMENSIONHiroshima Venture Capital Co. Ltd.MIRAIDOOR Co. Ltd.Mitsubishi UFJ CapitalMizuho CapitalNippon Venture Capital+1 more
PR TIMES is a press release distribution service that helps companies distribute news releases to media and the public, with content syndicated across more than 260 partner sites.
Marketing TechMedia & EntertainmentSaaS
Co-investorsAngel Bridge Co.,Ltd.basepartnersDD Holdings Venture CapitalDIMENSIONi Cubed Venturesi-nest capital+7 more
AOI Biosciences is a Japanese biotech company focused on infectious diseases and autoimmune disorders, combining data analysis technology with proprietary bio-technology.
BiotechHealthtechMedical DevicesIbaraki, JP
末田 伸一(代表取締役 (CEO))in
Co-investorsi-nest capitalNippon Venture CapitalNOW JapanUntroD Capital
bestat develops AI algorithms for acquiring, generating, processing, and using 3D data end-to-end, serving manufacturing and civil engineering sites with applications such as digital twins, factory layout simulation, point cloud processing, and robot environment setup.
Advanced ManufacturingAI & Machine LearningDeep Tech
Matsuda(CEO)
Co-investorsDG IncubationOpen Network Lab
Carstay operates a peer-to-peer marketplace in Japan for renting and car-sharing campervans and camping cars, along with space-sharing for overnight vehicle stays.
MarketplacesMobility & TransportationTravel & Hospitality
Co-investorsLifetime VenturesW Inc.
Coeto operates a platform that facilitates warm, voice-based communication and dialogue to foster human connection and reduce isolation.
ConsumerCreator EconomyMedia & EntertainmentSocialTokyo, JP
Kenji Minato(Representative Director)
GraGreen develops improved crop varieties using genome editing and traditional breeding methods to reduce resource inputs and increase agricultural yields.
AgTechClimate TechNagoya, JP
Masaki Niwain
Co-investorsBeyond Next VenturesKyoto University Innovation CapitalShizuoka CapitalTechstarsUTokyo Innovation Platform Co. Ltd.
Osaka Innovation Hub (OIH) is a startup support organization that runs programs for entrepreneurs and startups, covering idea development, business incubation, funding, mentoring, and corporate collaboration.
Enterprise SoftwareOsaka, JP
LanCul operates English conversation cafes and digital platforms to help users learn English and experience foreign cultures.
ConsumerCreator EconomyEdTechTokyo, JP
阪野 思遠(Co-founder & CEO)
Levtech operates a platform connecting freelance IT engineers with companies seeking contract work, featuring job matching through both direct search and scout-based recommendations.
B2B MarketplacesFuture of WorkHR TechSaaS
Japanese media platform where creators publish text, images and audio and readers follow, support and subscribe to them.
Co-investorsDnx VenturesJAFCO GroupOriental Land InnovationsW Inc.
POCO APOCONW develops hardware-centric solutions for industrial and agricultural applications, with specialization in microcontrollers, network technology, and AI-powered edge devices.
AgTechAI & Machine LearningHardwareHealthtechIoTMedical DevicesKobe, JP
Board武部 秀治
SPLYZA develops video-analysis technology that visualizes body movement, offering products for sports, education, healthcare/rehabilitation, and manufacturing.
AI & Machine LearningEdTechSaaSSports TechHamamatsu, JP
Hiroyuki Doi(代表取締役 (Representative Director/CEO))in
BoardKiyofumi Ando(取締役 (Director))Joe Waller(取締役 (Director))
Co-investorsShizuoka Capital
Stripe provides financial infrastructure for businesses to accept payments, offer financial services, and implement custom revenue models across international markets in 135+ currencies.
Developer ToolsFintechSaaSSan Francisco, US
John Collison(President)inPatrick Collison(CEO)inWilliam Gaybrick(Executive Officer)inGreg Brockman(Founding Engineer, then first CTO)inSarah HeckinRyan Seekely(Engineering Manager)
Co-investors1435 Capital500 GlobalAdvaita CapitalAdventure FundAglae VenturesAir Street Capital+102 more
Sunda Technology Global is a Japanese tech company building water infrastructure hardware and sustainable operation-and-maintenance systems for community-shared water facilities such as wells and public taps in Sub-Saharan Africa.
CleantechHardwareImpact & Social GoodIoTTokyo, JP
Co-investorsANOBAKA
TimeCrowd is a time-tracking and work hours management platform that integrates with calendar and team collaboration tools.
Enterprise SoftwareFuture of WorkHR TechSaaS
Co-investorsLifetime Ventures
JSSA is a Japanese startup support association that provides mentoring from former executives of listed companies, an LP fund for capital strategy and fundraising, and networking with sponsors and advisor companies to help member startups reach IPO or M&A exits.
Future of WorkImpact & Social Good
Takahiro Oka(Representative Director (founder))
Studist develops software products and services to help organizations improve and optimize their operations under a "lean operation" approach, including tools for documenting procedures, knowledge sharing, and internal communication.
Enterprise SoftwareFuture of WorkSaaSTokyo, JP
Co-investorsDnx VenturesGlobal BrainHakuhodo DY Ventures
Japanese career-tech company operating meetcareer, a paid career coaching and mentoring service that does not place job listings.
Co-investorsW Inc.W ventures
YStory develops AI-powered digital health solutions for women, with a focus on menopause management.
AI & Machine LearningDigital HealthHealthtechTokyo, JP
Janet Yu(CEO (Representative Director))Sherry Shi(CEO (Representative Director))
Co-investorsKyoto University Innovation Capital
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
BiziblCare Link.CoJoyHerSecureNavi株式会社SumatenWachaアラカン 中古車のCtoCプラットフォーム「カババ」を開発、運営カババ (Kababa)ケアリンク (Carelink)
Portfolio news
latest coverage across their companiesStripe · techcrunch.com · Feb 24, 2026
Frequently asked questions
- How many investments has Seiho Investment Works made?
- Seiho Investment Works has 31 tracked investments.
- What stage does Seiho Investment Works invest at?
- Seiho Investment Works invests at the Seed, Series A stages.
- What is Seiho Investment Works's typical check size?
- Seiho Investment Works typically writes checks of $67K – $670K.
- What sectors does Seiho Investment Works focus on?
- Seiho Investment Works focuses on Biotech, Consumer, Deep Tech, Enterprise Software, Healthtech, SaaS, Sector Agnostic.
- Where is Seiho Investment Works located?
- Seiho Investment Works is headquartered in Kyoto, JP.
- Who does Seiho Investment Works co-invest with?
- Seiho Investment Works most often shares deals with W Inc., Dnx Ventures, Kyoto University Innovation Capital, among 34 tracked co-investors.
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