Top 25 Legal Startup Investors in Japan (May 2026)

Portfolio highlights

• Heartseed — Heartseed has set a mission to “open the door to heart disease treatment with regenerative medicine” and is working toward the day-to-day clinical application of myocardial regenerative medicine.
• Luup — Luup is an Internet Company.
• Kyoto Fusioneering — Kyoto Fusioneering is a research & development, design, and manufacture of parts related to fusion reactors.

Portfolio highlights

• Monoxer — Monoxer is a Information Technology.
• Commune — Commmune is a co-creation marketing tool that enables the acquisition and use of user insights around the user community. The company's service "commmune" provides a community environment to improve user engagement for companies that provide services using SaaS and subscription models with the goal of reducing churn rates. By usingthe service, companies can centrally communicate their information and interact with users. In addition, companies that issue member accounts can also implement single sign-on (SSO) by linking the service with their member database. Set incentives according to conditions, such as giving a certain point when a core user posts useful information to other users, or giving a certain point when a light user shares information It is possible to create an environment in which PDCA can be rotated at a high speed by activating communication between companies and users and analyzing them alone or in conjunction with MA tools and CRM tools.
• Imaginostics — Our technology, QUTE-CE MRI (pronounced “cute-see”), quantifies vascular structure, function, and leakage anywhere in the body. This breakthrough heralds a new understanding of the vascular pathophysiology of disease while providing clinical scientists new tools for drug development and evaluation of therapeutics. After raising an initial $1M seedround and validating its technology in pre-clinical trials, Imaginostics now seeks to raise $3M to conduct clinical trials at Massachusetts General Hospital and begin commercialization. Despite more than 40M MRI scans performed each year in the US, 70% of cancers are detected late and no neurodegenerative disease is detected early. Conventional gadolinium-based contrast agent (GBCA) MRI scans lack the quantitative precision necessary for measuring biomarkers that can predict future onset of Alzheimer’s, dementia, and other forms of cognitive impairment. In preclinical studies, our patented biomarkers were able to map blood-brain barrier leakage due to mild head impact using less than half the number of subjects required by conventional DCE-MRI, with a significant improvement in the clustering of the control and experimental groups into non-overlapping segments seen in the results.

Portfolio highlights

• Todoker — Todoker is a baggage delivery convenient service providing company.
• LUCA Science — LUCA Science develops innovative treatments intended for mitochondrial and related diseases.
• Beer and Tech — Beer and Tech operates a website for the Phalaenopsis or foliage plant HitoHana. Norihisa Morita and Yoshiaki Ito founded it in 2014, with its headquarters in Saitama in Japan.

Portfolio highlights

• Noin — Noin specializes in cosmetics and delivers content that accurately captures trends like videos that solve girls worries.
• Trustdock — Trustdock is a platform for identity confirmation API service in Japan. You can outsource KYC / identity confirmation via online API, complying with various laws including criminal profit transfer prevention law, antique sales law, cell phone fraud prevention use law etc. It can be used with any ID service regardless of business type, such asmatching to FinTech, shared eco, etc.
• Connected Robotics — Connected Robotics is an information technology company that designs and manufactures robotic arms for enterprises. The company's product, OctoChef, provides cooking services. It caters to individual restaurants, shopping malls, stations, service areas, amusement centers, and large-scale events. The company was founded in 2014 and is basedin Koganei-shi, Japan.

Portfolio highlights

• Degas — Degas develops solutions to improve the productivity of small-scale farmers in Africa.
• pickupon株式会社 — Pickupon is a company that transcribes important parts of the call
• MoneyDuck — MoneyDuck - Making Smart Financial Decision

Portfolio highlights

• Blue Laser Fusion — Blue Laser Fusion is a commercial fusion company. Blue Laser Fusion is a laser startup to commercialize laser fusion by inventing its own laser and fusion reactor.
• UnaBiz — Based in Singapore, Taiwan and Japan, UnaBiz delivers end-to-end customised IoT solutions worldwide. Simple, cost-efficient & low maintenance
• Nanofiber Quantum Technologies — Powering a globally connected quantum future with pioneering nanofiber cavity QED.

Portfolio highlights

• AIQ — AIQ aims to transform the way offline content is being consumed by bridging O2O (offline to online) media properties with its latest cutting-edge Computer Vision AI Technology where multiple platforms and channels can be integrated, allowing seamless interaction between online & offline content. AIQ's Video & Visual RecognitionTechnology empowers consumers with the ability to interact with their favourite brand’s & products, any where, any time. At AIQ, we redefine the way brands engage with customers because, we can.
• Corpy & Co. — Corpy & Co. develops and provides solutions and works on research and development of frontier XAI / QAAI for deploying AI in mission-/safety-critical areas. The company proposes new alternatives through research and development of AI. Corpy & Co. was founded by Kohei Yamamoto in 2017 and is headquartered in Tokyo, Japan.
• ACES Japan — ACES is providing image recognition algorithms such as object recognition and face and expression recognition

Portfolio highlights

• nat — nat develops iOS application - Scanat and provides consultation service in data strategy.
• Dots for — Dots for is a technology that aims to improve the lives of rural residents by providing them with digital services.
• Willbox — Willbox is an international logistics company providing an international logistics digital platform for shippers and logistics companies. The company's platform "Giho" connects shippers and logistics companies (transportation, packaging, warehousing, customs clearance, etc.) with a direct contract. It visualizes the three elements of[lead time, money, and safety], which have been regarded as a black box, and supports comparative examination and decision making. Willbox digitizes the packing technique of wooden boxes and steel, mandatory for international logistics, and incorporated them into their system. Their mission is to solve the logistics issues focusing on the large cargo of industrial products.The company was founded in 2019 and is based in Yokohama-shi, Kanagawa.

Portfolio highlights

• Dioseve — Dioseve is providing novel possibilities for all life.
• HQ Inc — Hq is a consutling firm that works in the area of personnel organization strategy, working style office strategy and software development.
• TeraWatt Technology — Electrifying all for the sustainable future

Portfolio highlights

• JAPAN HEALTHCARE — Japan Healthcare is a healthcare start-up that works on the prevention of musculoskeletal diseases with environmentally-friendly preventive medicine . Japan Healthcare Build a preventive system for musculoskeletal diseases with environmentally-improving preventive medicine.
• Japan Healthcare Info — Japan Healthcase Info locates english-speaking doctors for you and makes appointments
• Legal Technology Japan — Legal Technology is into development of cloud-based research tool called 'Legal Library' using legal books.

Portfolio highlights

• FoodMap — FoodMap is a startup with the goal of connecting customers with ethical farmers and food suppliers directly.
• Gushwork — Gushwork provides a platform for small and medium businesses to get on-demand access to cross-border, AI-augmented remote workforce. They are enabling a one-click process for businesses to delegate or automate their day to day mission-critical business workflows.
• StepChange — Discover StepChange, India's best platform for ESG management. Measure, analyse, report, and reduce emissions. Request a free demo to get started!

Portfolio highlights

• pickupon株式会社 — Pickupon is a company that transcribes important parts of the call
• bravesoft — bravesoft is a software company that operates events and in-house product for contract development and events. The company offering services such as UI / UX design, application consignment development service, appvisor push, and technical research service.
• ventus Japan — ventus is an Media and Entertainment based company.ventus aiming to be an entertainment company that provides technology that all fans can enjoy.

Portfolio highlights

• Invenergy — Invenergy is a leading independent, global developer and operator of clean energy solutions.
• AdaniConneX — AdaniConneX is the largest Hyperscale Data Center provider. Avail the maximum uptime, highest energy efficiency, full scalability and security to your business and customers.
• Varo Energy — VARO Energy is an integrated oil refiner and supplier serving North West Europe, safely and efficiently. Varo Energy is investing in this market by building a network of refineries, storage tanks and distribution channels to secure the reliable supply of oil products for heating, transportation, construction and the petrochemical industry in NorthWest Europe.

Portfolio highlights

• HERP — HERP is a recruitment management platform.
• Issues — Issues provides development and management of web service issues that solve the problems.
• Luup — Luup is an Internet Company.

Portfolio highlights

• Issues — Issues provides development and management of web service issues that solve the problems.
• Cocoach — Cocoach provides online education service.
• Crediation — Crediation is a procurement and marketing company that provides financial services.

Portfolio highlights

• Fun — Fun is a sightseeing entertainment company that makes the world even more of a fun place.
• Tabinaka — Tabinaka is a Japanese booking & reservation platform for overseas tours and travel activities.
• Fun Group — Hello! We are Fun Group (formally Tabinaka) and we are Japan's first Travel and Leisure startup offering unique tours and experiences. We currently offer experiences in 7 different locations globally.

Portfolio highlights

• Cerby — Collaborate without chaos. Cerby helps your team be productive while protecting your brand. Secure unmanageable applications. Only with Cerby.
• CYBO — CYBO provides products and services to understand cells deeply and to harness them widely.
• Bondy — Bondy is an HR Tech automation platform that specializes in connecting different HR processes.

Portfolio highlights

• EBRU — EBRU is a manufacturer and seller of earphones and ear monitor audio products that include custom artwork on the products.
• Meiten Kan — Meiten Kan engages in the food delivery service industry.
• Human Potential Lab — Human Potential Lab is a company that supports individual skills development and corporate organizational change. Focusing on mental health and well-being, the company's programs are based on brain science, bioscience, psychology, and technology.

Portfolio highlights

• enechain — enechain provides liquidity in Japan’s energy market by brokering OTC transactions of energy.
• Parallel — Parallel Inc. develops a parallel SNS which can be used while playing games on smartphones.
• Holmes — Holmesis a cloud contract system to consistently carry out the creation, conclusion and management of contracts in the cloud.

Portfolio highlights

• enechain — enechain provides liquidity in Japan’s energy market by brokering OTC transactions of energy.
• Stock — Stock develops products that relieve the stress of sharing information from teams around the world.
• OVERFLOW — OVERFLOW provides consulting and recruitment services.

Portfolio highlights

• LegalForce — LegalForce is an AI that reduces the workload while improving the accuracy of contract review .

Portfolio highlights

• Torana — Torana provides "Toysub!" well known as educational toy subscription service in Japan market. We plan to go global and will be more bigger market share holder in East Asia. We collect month-age base toy feedback data and children's development status information. We plan best combination of toys and deliver. Customer returns and getsnew toys which fit children's growth and it is eco friendly service. We plan to build our own brand toys based on massive customer feedback and growth data and enter D2C market.
• LIFESCAPES — LIFESCAPES is a research and manufacturer of brain-computer interface equipment.
• IGNITE IMPULSE, INC. — As a digital agricultural enhancing service, Ignite impulse offers a variety of services, some of which include the following: agricultural software and equipment rentals, sales, maintenance, and leasing solutions; self-regulated farm shells with pre-installed vertical farming solutions; machined irrigation consulting and installations; artificialintelligence (AI) powered farming solutions; hydroponics farming consultation- partnership and installations; supply chain and logistics partnership; and more.Ignite Impulse also offers hydroponics solutions, as well as controlled farming assistance and consulting, to corporate, government, and educational organizations as part of our cooperation with these entities.

Portfolio highlights

• Funds — Funds is an online marketplace for lending funds.
• Bloomo Investment — Bloomo Investment is a software company that specializes in the development of smart and fun investment apps.
• LexxPluss — LexxPluss develops an automatic transfer software system and robot hardware.

Portfolio highlights

• Cerby — Collaborate without chaos. Cerby helps your team be productive while protecting your brand. Secure unmanageable applications. Only with Cerby.
• Hugging Face — Hugging Face is an open-source & platform provider of machine learning technologies. Hugging Face was launched in 2016 and is headquartered in New York.
• Thunder — Thunder seasoned pros will help connect your processes, platforms and people, to get your business booming.

Portfolio highlights

• RABO — RABO is a Cat-Tech Company that "watches cat life with technology.
• MICOLY — MICOLY is a operator of a website aimed at publishing and selling creative video lessons. The company hosts lectures that are presented by the creators of all categories who are keen on sharing their techniques and philosophies in areas of nail art, Japanese calligraphy, flower arrangement, knitting and many more, as well as interacting with theirpassionate fans, enabling users to take creative lessons and start a new hobby.
• ASOVIEW Inc. — ASOVIEW Inc. is an online booking website that provides booking services for weekend leisure activities like skydiving and rafting. The company was founded in 2011 and is based in Shibuya, Kanagawa.