DIMENSION
Venture capitalTokyo · Pre-Seed–Growth · 12 people tracked
Also known as DIMENSION株式会社
Investment thesis
DIMENSION backs entrepreneurs with straightforward ambition, aiming to build meaningful, large-scale businesses in Japan. Beyond funding, it offers business growth know-how, organizational building support, and networks drawn from extensive IPO/M&A experience. Its third fund targets seed and early-stage startups, pre-IPO growth companies, and increasingly MBO/spin-out situations, reflecting the firm's own 2021 spin-out from a listed company. Investment focus areas include AI, energy, digital infrastructure, healthcare, entertainment, space, security, and deep tech (excluding bio). DIMENSION fosters an ecosystem where senior entrepreneurs mentor newer founders, and runs owned media (DIMENSION NOTE, DIMENSION Channel) to share entrepreneurial knowledge.
Source: firm website, verified Aug 3, 2026.
Team · 12 people
from the firm's website
What they invest in
from 25 of 119 portfolio companiesSaaS ×10AI & Machine Learning ×8Enterprise Software ×7Media & Entertainment ×7B2B Marketplaces ×4Marketing Tech ×4Creator Economy ×3AdTech ×2
HQs:Japan×26
Investments · 119 tracked
founders shown can be your intro pathFind Inc. develops an AI-powered lost-and-found management cloud platform that helps businesses and facilities handle lost item inquiries, storage, police filings, and document processing efficiently.
AI & Machine LearningEnterprise SoftwareSaaSTokyo, JP
高島 彬(代表取締役CEO)和田 龍(取締役COO)
Smash Media is a Japanese media company that produces original content including short dramas, web series, music-related shows, talent audition programs, and entertainment content for digital platforms.
Creator EconomyMedia & EntertainmentTokyo, JP
Allied Architects is a Japanese company providing corporate and investor relations information through its website.
ConsumerData & InfrastructureEnterprise SoftwareMarketing TechSector AgnosticTokyo, JP
Masahide Nakamura(Director and Founder)
Asteria Corporation develops and sells enterprise software focused on data connectivity and integration.
Data & InfrastructureDeveloper ToolsEnterprise SoftwareSaaSTokyo, JP
Baby Job provides support services for childcare facilities and parents in Japan, including a diaper management system for nurseries, a childcare facility search platform for parents, and a cashless payment system for childcare-related transactions.
B2B MarketplacesFuture of WorkSaaS
BATONZ operates Japan's largest M&A and business succession support platform, connecting buyers and sellers across businesses of varying sizes and industries.
B2B MarketplacesFintechTokyo, JP
Chiikishinbunsha publishes and distributes free papers and handles insert-flyer advertising across roughly 1.7 million households in Chiba and Ibaraki prefectures, Japan, using a network of about 2,500 distribution staff.
AdTechMarketing TechMedia & Entertainment
Katsutoshi Hosoya(President)
Board近間之文
Dream Incubator Inc. is a Tokyo-based firm providing business production ("business produce") consulting and startup incubation services.
Developer ToolsEnterprise SoftwareSaaSTokyo, JP
三宅孝之(代表取締役社長)細野恭平(取締役副社長)Takayuki Miyake(Representative Director & President)Kyohei Hosono(Director & Executive Vice President)
E-Guardian is a Japanese company providing online content moderation, community monitoring, customer support, cybersecurity, and related operational services.
AdTechCybersecurityEnterprise SoftwareGamingSocialTokyo, JP
Yasuhisa Takaya(President & Representative Director)
eBook Japan is a digital marketplace for manga and ebooks, offering titles across multiple genres including romance, fantasy, and light novels.
E-commerceMarketplacesMedia & EntertainmentTokyo, JP
Solution for management of employment regulations and company rules.
MediciNova is a biopharmaceutical company that develops new drugs for diseases with limited or unestablished treatment options, aiming to serve patients with unmet medical needs.
BiotechHealthtech
Yuichi Iwaki(代表取締役社長兼CEO (President & CEO))
Exits · 1
IPOs and acquisitions across the tracked portfolioMediciNovaNASDAQ: MNOV
Portfolio news
latest coverage across their companiesAntway · thebridge.jp · Nov 27, 2025
Frequently asked questions
- What stage does DIMENSION invest at?
- DIMENSION invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth stages.
- What sectors does DIMENSION focus on?
- DIMENSION focuses on AI & Machine Learning, Cybersecurity, Deep Tech, Energy, Healthtech, Media & Entertainment, Sector Agnostic, Space Tech.
- Where is DIMENSION located?
- DIMENSION is headquartered in Tokyo, JP.
Media · Podcasts & interviews
from their channel【インタビュー本編】「ネット×リアル」の強みで、世界のトップ企業を創る。 | 株式会社GA technologies 代表取締役 社長執行役員 CEO 樋口 龍 氏
DIMENSION
【インタビュー本編】経営判断から採用まで、MVVを意思決定の軸にする | 株式会社TENTIAL 代表取締役CEO 中西 裕太郎 氏
DIMENSION
【インタビュー本編】制度変更に対応し、プロダクトをアップデートし続ける | デジタルグリッド株式会社 代表取締役社長 豊田 祐介 氏
DIMENSION
【インタビュー本編】これからの時代は「地上」と「宇宙」の境目が消える | 株式会社ロケットリンクテクノロジー 代表取締役社長 森田 泰弘 氏
DIMENSION
【インタビュー本編】日本発スタートアップ企業がグローバルでプレゼンスを発揮する | 株式会社bitFlyer 代表取締役 加納 裕三 氏
DIMENSION
【インタビュー本編】逆風が吹いていても一緒に立ち向かえる”仲間”であること | 株式会社チェンジホールディングス 代表取締役兼執行役員社長 福留 大士 氏
DIMENSION
Images
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