Top 50 Climate Startup Investors in Japan (June 2026)

Portfolio highlights

• Sotas — Sotas provides services to chemical trading companies and bridges the gap between raw material producers and consumers.
• PartnerProp — PartnerProp is a PRM tool with outstanding potential and a wide variety of capabilities that resolves all partner business difficulties.
• Infobox — Infobox is a sales data platform that includes every detail from market research to creating a list of companies and contacting decision-makers.

Portfolio highlights

• Metro Weather — Metroweather is a venture from Kyoto University that develops a high-performance Doppler lidar that measures the direction and speed of wind several tens of kilometers away from minute movements of fine particles in the atmosphere. We aim to contribute to the safety of the sky by completing a three-dimensional wind map, which has never beenrealized,based on years of research at the Kyoto University Research Institute for Sustainable Areas.
• Good News — Good News is a staffing agency that provides recruitment, public relations, and human resource management services.
• Okuma Diamond Device — Ookuma Diamond Device Co., Ltd. | Creating a next-generation semiconductor industry from Japan, driven by the mission to support the decommissioning of Fukushima Daiichi Nuclear Power Plant.

Portfolio highlights

• CastBio — Castbio specializes in antibody-drug conjugate-based drug discovery research and development. Along with medications, it also creates research reagents, medical equipment, in vitro diagnostic items, and offers drug discovery consulting.
• Illumi Medical — Illumi Medical is a manufacturing company that produces medical equipment and devices for the healthcare sector.
• Reborna Biosciences — Reborna Biosciences provides research and development in the field of genetic diseases. The company develops therapeutic options for area of unmet medical needs in genetic rare disease. The company's technology enables low-molecular compounds to target ribonucleic acid. The company provides new disease-modifying drugs for patients sufferingfrom rare genetic diseases including spinal muscular atrophy.

Portfolio highlights

• Letara — Letara operates a space technology platform with the intention to serve a logistics network covering the solar system. The company produces hybrid propulsion engines for small spacecraft, promoting groundbreaking advances in space propulsion with high thrust, safe, and inexpensive propulsion system technology.
• Akari Hosho — Akari Hosho provides a group of trusted professionals, including lawyers and judicial scriveners. Akari Hosho provides a guarantee service.
• Black Cat Carnival — Black Cat Carnival Inc. is a communication service development company.

Portfolio highlights

• Near Intelligence — Near, the world’s largest source of intelligence on People, Places, and Products is the global leader in Data Intelligence empowering organizations of all sizes to make smart, strategic decisions delivering optimal business performance. We unite Marketers and Operational data leaders by providing the most accurate, reliable source of data thatdelivers actionable insights on People, Places, and Products in both the physical and digital space.Near is backed by leading investors including Sequoia Capital, JP Morgan Private Equity Group, Cisco Investments and Telstra Ventures. Visit www.near.com to find out more.
• Otetsutabi — Otetsutabi is a regional revitalization platform that offers the opportunity for participants to help at accommodations and breweries in rural areas that struggle with seasonal labor shortages. The locals offer transportation expenses and places to stay in return, so participants can travel to the areas with ease.
• Supercritical — We partner with industry to move and think beyond fossil fuels with innovative clean technology solutions.

Portfolio highlights

• Logiless — Logiless is a cloud type all-in-one software dedicated to net shop. Since both orders and stocks can be managed together in a logical manner, efficiency of operations can be realized at low cost.
• ARCS — ARCS specializes in developing assisted reproductive medical devices using robotics and artificial intelligence technology.
• OpenHeart — OpenHeart is a provider of the tactile 3D platform.

Portfolio highlights

• Ashirase — Ashirase is a developer of a walking navigation system for the visually challenged. The company assists visually impaired people in walking independently. This also allows the user to have more attention to spare for audible warnings in their environment. It includes voice input and guidance via a smartphone app. A vibration interface is attachedto their shoes.
• Ken Robotec — Ken Robotec is a construction company that provides labor-saving solutions.
• MaterialGate — MaterialGate focuses on single-molecule dielectrics, developing technologies for devices with better electronic characteristics.

Portfolio highlights

• Fondi — fondi is a completely new English conversation communication service that allows you to live a virtual communal life with the world.
• Taian — Taian, which specializes in bridal industry services and software. They also provide ''Concept Marry,'' which allows couples to design invites and seating charts that match their wedding theme, as well as display guest information on Oiwaii.
• Knowledge Work — Knowledge Work specializes in the development and sales of software for companies.

Portfolio highlights

• Pale Blue — Water propulsion systems for sustainable space development
• SPACER — SPACER is a 24-hour handover IoT locker that can open and close doors with a smartphone.
• Gaudi Clinical — Gaudi Clinical is a health care firm that engages in regenerative medicine outsourcing and cell processing contract establishments.

Portfolio highlights

• JOYCLE — JOYCLE is a waste management company that specializes in trash recycling, disposal, and environmental consulting services.
• Autify — AI software testing company aimed at solving the challenges associated with automation testing. We are passionate about making software testing faster and easier, empowering companies to release faster and keep their applications stable.
• Rara — Rara offers carbon-free and organic mushroom culture production equipment.

Portfolio highlights

• Reject — Reject is an esports firm that focuses on management of its team REJECT, players, apparel business, and event management services.
• Linqmed — Linqmed is a pharmaceutical company that specializes in the research and development of radiopharmaceuticals for cancer treatment.
• Japan Culture and Technology — Japan Culture and Technology assists artists and craftspeople in expanding their activities by providing IT support.

Portfolio highlights

• Tear Exo — Tear Exo is a biotechnology research company that produces and sells liquid biopsy using materials for molecular recognition.
• TelaAxon — TelaAxon develops artificial intelligence technology for sustainable operations, enhancing human-AI coexistence, safety, and wellness.
• Akari Hosho — Akari Hosho provides a group of trusted professionals, including lawyers and judicial scriveners. Akari Hosho provides a guarantee service.

Portfolio highlights

• Todoker — Todoker is a baggage delivery convenient service providing company.
• CREO Bioscience — Cleo Bioscience is a Biotechnology company.
• Fabric Tokyo — FABRIC TOKYO is a Japanese startup provides a direct-to-consumer custom-made apparel brand. (former-company name Lifestyle Design Co., Ltd.). It enables customers to save their sizes, idea fabrics, and favorite designs, allowing them to make their original clothing later.FABRIC TOKYO was founded in 2012 by Yuichiro Mori and is based in Tokyo,Japan.

Portfolio highlights

• Caguuu — Caguuu offers high-quality designer furniture at affordable prices, through e-commerce, eliminating middlemen and store operating costs.
• QREATION — QREATION is a digital intellectual property studio specializing in producing a wide range of popular content that originates primarily from social media platforms. The company focuses on creating high-quality short-form entertainment, including short dramas, comedy sketches, and variety shows.
• ARCS — ARCS specializes in developing assisted reproductive medical devices using robotics and artificial intelligence technology.

Portfolio highlights

• Recho — Recho’s voice AI solutions must offer some unique features. Recho has a mission to "create the future of communication" and provides the VoiceAI platform and its application, Voice Agent.
• Pliant — Pliant makes the latest generation of corporate credit cards that adapt perfectly to business processes and needs.
• Captain Fresh — Captain Fresh is a freshwater fish and seafood supply chain platform. Captain Fresh is a B2B marketplace leveraging technology to deliver the fastest harvest-to-retail in the industry. The company focuses on aggregating the fragmented retail demand across the country and linking them to the small fishermen and farmers throughout the Indian coast.The company was founded in 2019 and is based in Bengaluru, India.

Portfolio highlights

• Eitoss — Eitoss is a technology company which has developed and provided the proposal improvement cloud "Cayzen".
• Recerqa — Recerqa is a supply chain management SaaS that utilizes advanced development technology and AI to improve the purchasing, inventory, and sales management experiences.
• Finovo — Finovo specializes in the research, development, operation, and maintenance of cutting-edge accounting and financial software solutions.

Portfolio highlights

• Fager — Fager is an agriculture firm specializing in promoting decarbonization projects, agricultural carbon production, and sales.
• Esa — Esa offers plastic waste recycling, and also the development and distribution of plastic products
• DeepForest Technologies — DeepForest Technologies is an IT firm that offers drone photography, forest information analysis, DF Scanner, and data processing services.

Portfolio highlights

• LAPRAS — LAPRASis an Artificial Intelligence company.
• Cell-En — Cell-En is a bioelectricity company that provides power solutions through off-grid power generation.
• Zip Infrastructure — Inquiry : https://docs.google.com/forms/d/e/1FAIpQLSfDmxd1TpPP331TY4VoRsvn0yWX3Ca5Jd-bfBiuPwvpD2SKtA/viewform

Portfolio highlights

• F.MED — F.MED is a manufacturing company that designs and develops robotic microsurgical devices for the healthcare industry.
• Triorb — Triorb is a technology company that specializes in robot mobility development with the help of software and hardware solutions.
• ASEMtech — ASEMtech is a technology company that specializes in research, development, sales, and leasing of medical equipment via the ASEM method.

Portfolio highlights

• Equmenopolis — Equmenopolis is an information services company that specializes in conversational AI agent platforms and application developments.
• Surv Biopharma — Surv Biopharma develops a drug discovery platform that facilitates research and development of veterinary drugs and pharmaceutical products.
• Zip Infrastructure — Inquiry : https://docs.google.com/forms/d/e/1FAIpQLSfDmxd1TpPP331TY4VoRsvn0yWX3Ca5Jd-bfBiuPwvpD2SKtA/viewform

Portfolio highlights

• ElleThermo — elleThermo aims to implement Semiconductor-Sensitised Thermal Cells (STCs), an energy conversion technology that can generate electricity from unused waste heat above room temperature.
• Aeterlink — Aeterlink is a wireless device maker and developer. They applied their technology to fields such as FA, robots, smart houses, and medicine and developed practical level technologies such as elemental technology that can wirelessly supply power.
• Nanofiber Quantum Technologies — Discover how NanoQT builds the foundation for scalable quantum computing with nanofiber cavity-QED technology and high-fidelity quantum connectivity.

Portfolio highlights

• Mechano Cross — Mechano Cross is a mechanical company that offers mechanochemical organic synthesis technology for solution reactions.
• Rendez-Vous — RENDEZ-VOUS offers a co-ownership option for vintage cars.
• RICOS — RICOS is a tech company that optimizes manufacturing processes using AI, simulation, and high-performance computing technologies.

Portfolio highlights

• Airato — Airato specializes in the development of radiation therapy using artificial intelligence technology.
• Robofull — Robofull is a manufacturing firm that specializes in the design and sale of automation equipment for factories to solve the labor shortage.
• Illumi Medical — Illumi Medical is a manufacturing company that produces medical equipment and devices for the healthcare sector.

Portfolio highlights

• Mozu — MOZU operates a construction materials procurement platform.
• MUSE — MUSE is a robotics company that provides robotic solutions for retail stores to support in-store operations.
• PowerX — PowerX strives to build a sustainable energy ecosystem to drive the world's transition to a decarbonized future.

Portfolio highlights

• CUSTA —
• Dishwill —
• PartnerProp — PartnerProp is a PRM tool with outstanding potential and a wide variety of capabilities that resolves all partner business difficulties.

Portfolio highlights

• Metro Weather — Metroweather is a venture from Kyoto University that develops a high-performance Doppler lidar that measures the direction and speed of wind several tens of kilometers away from minute movements of fine particles in the atmosphere. We aim to contribute to the safety of the sky by completing a three-dimensional wind map, which has never beenrealized,based on years of research at the Kyoto University Research Institute for Sustainable Areas.
• SORA Technology — SORA Technology builds and operates health care and public health infrastructure utilizing drones and their operational management systems.
• Japan Wind Tunnel Manufacturing — JAPAN FUDO is a company that develops and manufactures new products related to wind, such as the world's most compact wind tunnel "Aero Optim" series and double propeller wind turbines.

Portfolio highlights

• Cykinso — Cykinso is a developer of a home-testing kit designed to tell people the state of their intestinal bacteria. The company provides a testing service to clarify the state of the intestinal environment by using a sequencer that reads a large number of DNA sequences at high speed, enabling users to investigate the relationship with lifestyle-relateddiseases and digestive diseases based on changes in intestinal bacteria.
• Stayway — Stayway is operating the world's largest hotel and vacation facility search and comparison site.
• FiberCraze — FiberCraze is a manufacturing company that specializes in the development and sales of thread materials.

Portfolio highlights

• OptQC — OptQC commercializes cutting-edge optical quantum computing technologies developed by the Furusawa-Endo Laboratory. Because optical quantum computers are more scalable than superconducting and other quantum computing implementations, OptQC's optical quantum computers should reach this scale. They also have benefits like faster processing andreduced power consumption, which makes optical quantum computers a possible long-term pinnacle of quantum technology.
• Triorb — Triorb is a technology company that specializes in robot mobility development with the help of software and hardware solutions.
• Flosfia — FLOSFIA is a spin-off from a research of Kyoto University, specializing in film-formation by mist chemical vapor deposition (CVD). Making use of physical properties of gallium oxide (Ga2O3), FLOSFIA has devoted to development of low-loss power devices.

Portfolio highlights

• Nealle — Nealle offers business development, business planning and consulting services.
• QibiTech — QibiTech created HATS, a service in which a human operator remotely supplements the operation of a robot. Add-on edge calculator or software for various robots to increase robot flexibility. It also serves as a platform for connecting operation data to the business improvement system.
• SPACECOOL — Spacecool offers zero-energy cooling materials that radiate heat to space, reducing temperatures and mitigating global warming.

Portfolio highlights

• Koeda — KOEDA is researching and developing medical devices that are safe, painless, and easy to use for acute cholecystitis. KOEDA will transform the management of cholecystitis. So far, endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) has been a notably difficult procedure carried out by skilled doctors at specific advanced centers. Althoughinserting a tube into the gallbladder is less invasive, it is complex, and there may be concerns regarding bile leakage. By combining clinical expertise with precision engineering, KOEDA addresses a clearly defined medical need in a growing global market and is currently moving forward on schedule for regulatory clearance and commercialization.
• AI Silk — AI Silk are innovative conductive fibers produced with a dyeing technique. By using natural silk and giving conductivity to the fiber itself, They have succeeded in producing electrodes that reduce some of the risks and challenges of conventional medical electrodes, which can cause discomfort,skin and in vivo inflammation, and measurement failuredue to sweat or other elements. Their brand, AI Silk, is a new material that has strong and diverse application potential, even beyond the health / medical field.
• Rege Nephro — Rege Nephro is a biotech company that specialized in R&D, production and marketing of renal disease therapeutics.

Portfolio highlights

• Ayumo — Ayumo is a research and development company that provides deep learning services with medical insights and AI technology.
• QunaSys — Quantum physics is a relatively new field built since the beginning of the 20th century, but we have used MRI (nuclear magnetic resonance equipment) and lasers used for close examinations in hospitals, and semiconductors mounted on computers. Supports the technology that supports the daily life of people.QunaSys was established to bring out thequantum physics that has been active behind the scenes to the front stage, and to make use of quantum properties to realize technologies that could not be achieved with existing technologies.
• Celaid Therapeutics — Celaid Therapeutics specializes in manufacturing and sales of regenerative medicine products utilizing human hematopoietic stem cells.

Portfolio highlights

• InsightX — InsightX is a technology platform focused on empowering businesses by simplifying complex processes and enabling smarter, more personalized user experiences.
• ElevationSpace — ElevationSpace offers high quality & well equipped workspaces giving tenants a nurturing environment .
• Neusignal Therapeutics — Neusignal Therapeutics is a medical company that develops therapeutic medicines for dementia and psychiatric illnesses.

Portfolio highlights

• Aracan — Aracan is an e-commerce business that provides online and offline car-sharing services for vehicles.
• Biophilia — Biophilia is a company specializing in pet-related, consulting business, internet service business, and consignment development business. The company was established in August 2017 and is based in Shibuya-ku, Tokyo, Japan.
• Pacific Meta — Pacific Meta is a tech startup that creates a web3 platform with the goal of offering guidance to businesses using blockchain technology. The firm platform aids in the product's localization for the Japanese market and offers community management services, enabling businesses to promote themselves on social media platforms and work withinfluencers in the cryptocurrency space.

Portfolio highlights

• Issin — Issin manufactures bath mats that can measure weight and automatically record daily weight changes on your smartphone.
• RoboTruck — RoboTruck develops autonomous driving technologies for huge trucks, as well as practical applications.
• Leading Mark — Leading Mark, a rising human resources startup in Japan. Leading Mark is branching out into mid-career and international hiring. It currently has a one-man team in China working to bring the top Japanese-speaking Chinese students to domestic companies. He also touts his startup’s focus on the average job seeker. “We want to make sure that the usersget the info that he or she needs the most,” he says. Large scale, legacy players can sometimes prioritize the needs of the hiring company, and their commission, over the needs of applicants themselves. This leads to frustration and short-circuited careers.

Portfolio highlights

• AirKamuy — AirKamuy is an aviation company that designs and manufactures fixed-wing VTOL aircraft and drones with the help of modern technology.
• Haul — Haul is a human resources company that provides recruitment consulting and marketing SaaS development services.
• Sorabito — SORABITO is an eCommerce marketplace for used construction equipment and machinery.

Portfolio highlights

• Surv Biopharma — Surv Biopharma develops a drug discovery platform that facilitates research and development of veterinary drugs and pharmaceutical products.
• Metagen Therapeutics — Metagen Therapeutics is a Drug discovery and medical business company which utilizes microbiome science.
• Restore Vision — Restore Vision is a startup based in Japan aiming to develop a visual restoration gene therapy.

Portfolio highlights

• iiba — Iiba is a geospatial platform that specializes in providing location information related to child-rearing.
• xxxxnese — xxxxnese is a logistics company that focuses on import, export, domestic sales, influencer marketing, and software development businesses.
• Kiwami — Kiwami offers sales promotion assistance and labor-saving solutions through the virtual store clerk.

Portfolio highlights

• Ababa — Ababa provides recruitment and employment solutions.
• Tenchijin — Tenchijin is optimiz human civilization using space big data.
• RICOS — RICOS is a tech company that optimizes manufacturing processes using AI, simulation, and high-performance computing technologies.

Portfolio highlights

• ALGO ARTIS — ALGO ARTIS is a software company that offers optimization in plant operations, tanking, ship allocation plan, and logistics.
• SUN METALON — SUN METALON aims to create a world where metal products can be produced from local ores. The company was founded in 2021 and is headquartered in Redondo Beach, California.
• BUGWORKS Research — Bugworks, a clinical stage biopharmaceutical company Harnessing the power of science to develop affordable, accessible, novel therapies against infectious disea

Portfolio highlights

• Cloudian — Cloudian provides exabyte-scale storage for your capacity-intensive workloads: S3-compatible storage for on-prem, hybrid cloud, and multi-cloud.
• Seajacks — Cadeler is a global leader in offshore wind farm construction, maintenance, and decommissioning.
• Vehicle Energy Japan — Vehicle Energy Japan specializes in development, manufacturing and sales of automotive lithium-ion batteries.

Portfolio highlights

• Flosfia — FLOSFIA is a spin-off from a research of Kyoto University, specializing in film-formation by mist chemical vapor deposition (CVD). Making use of physical properties of gallium oxide (Ga2O3), FLOSFIA has devoted to development of low-loss power devices.
• VLP Therapeutics — VLP Therapeutics, LLC (VLP) was established in 2012 by seasoned biopharmaceutical veterans with mission to develop innovative medical treatment which transforms traditional vaccine and targeted antibody therapies to address global unmet medical needs. Its vision is to combat the 21st century global public health problems through revolutionary nextgeneration i-αVLP (inserted alpha VLP) Technology. The company is headquartered in Gaithersburg, Maryland
• XFOREST Therapeutics — xFOREST Therapeutics develops a drug discovery platform that targets RNA structures.

Portfolio highlights

• STRACT — STRACT is a web platform that provides online platform, dating app, knowledge sharing cloud platform, and casual entertainment services.
• SmartHR — SmartHR helps Japanese companies bring HR activities into the digital age. SmartHR makes HR simpler for Japanese companies by replacing spreadsheets and paperwork with a user-friendly online solution. When SmartHR was founded in Japan in 2013, on-boarding and off-boarding employees was a tedious process, especially since employers had to apply forsocial insurance and healthcare on behalf of employees using a process that had not yet been digitized. Today, SmartHR delivers massive savings for companies across diverse segments from high tech to retail by decreasing the time to complete HR processes like employment contracts down from one month to just 1-2 days. After catering to its initial offering to startups and small businesses, SmartHR is expanding its business to serve more enterprise customers.
• PartnerSuccess — PartnerSuccess develops and provides SaaS tools that automate the collaboration between manufacturers and distributors.

Portfolio highlights

• KOMPEITO — Office de Yasai is an online platform that enables users to order and get vegetables delivered to their offices. The platform’s operations are based in Tokyo, Japan.
• Towing — Towing is an agricultural company that provides farming, manufacturing, and recycling services.
• Metro Weather — Metroweather is a venture from Kyoto University that develops a high-performance Doppler lidar that measures the direction and speed of wind several tens of kilometers away from minute movements of fine particles in the atmosphere. We aim to contribute to the safety of the sky by completing a three-dimensional wind map, which has never beenrealized,based on years of research at the Kyoto University Research Institute for Sustainable Areas.

Portfolio highlights

• Cinch Tech — Cinch Tech is a subscription service that offers technology products like computers, phones, tablets, and gaming equipment. Users can choose from different payment plans. The service includes damage cover for the devices. It is intended to help users access and maintain technology without paying full price upfront. The service provides analternative way to obtain and use tech devices.
• Vently — Discover the best nightlife events in SF.
• Habit Factory — Habit Factory provides financial big data analytics solutions.

Portfolio highlights

• G-ant — G-ant runs the MITACLE BLOCK service, transforming 2D illustrations into custom 3D block figures using voxel technology.
• MoonJapan — MoonJapan is an educational impact startup that offers a variety of programs and thorough assistance.
• Prefab — Prefab offers cutting-edge AI SaaS solutions tailored for the construction industry, enhancing efficiency, safety, and decision-making through data-driven insights.

Portfolio highlights

• Atto — Atto operates in the healthcare and preventive medicine field as a technology venture. Its main business is the development, manufacturing, and sale of health inspection equipment. The core product is a capillary blood flow observation device called Kekkan Bijin. This device allows users to observe capillary blood flow simply by placing a finger onit, without any blood sampling.
• FUNDiT — FUNDiT is an IT-focused M&A and business consolidation company that specializes in acquiring, managing, and scaling IT companies.
• Asian Bridge — ASIAN BRIDGE is a one-stop-shop for Japanese merchandise such as beauty care products, health foods, and clothing. The company was founded in 2010 and is based in Tokyo, Japan.

Portfolio highlights

• Scimplify — Scimplify delivers innovative specialty chemical solutions as a trusted manufacturer and global supplier to industries including pharma, food, and cosmetics
• EF Polymer — EF Polymer Private Limited providing 100% Organic and fully Biodegradable Super Absorbent Polymer cum Fertilizer to reduce Water and Fertilizer requirement for your plant. Let's grow organically.
• iMicrobes — We are a synthetic biology company on the mission to work with the world's largest companies to use new raw materials and recycle waste for chemical production, polymers, agriculture, and space exploration.

Portfolio highlights

• GooPass — GooPass is a subscription-based camera equipment rental platform that offers users cameras, interchangeable lenses, and drones. It also allows users to buy or rent photography equipment by reserving it online.
• Tenchijin — Tenchijin is optimiz human civilization using space big data.
• ORENDA WORLD — ORENDA focuses on developing high-definition 3D simulation systems that apply gamification and real-time rendering technology.

Portfolio highlights

• Argos — Argos provides the online insurance medical treatment service.
• Brainbuddy — Brainbuddy specializes in sales support, business growth, recruiting, consulting, and training services.
• Illumi Medical — Illumi Medical is a manufacturing company that produces medical equipment and devices for the healthcare sector.

Portfolio highlights

• ASUENE — Asuene involves in clean power retail business, retail SaaS business, etc.
• YOUTRUST — YOUTRUST is a startup to operate YOUTRUST a referral recruitment platform for side-job change.
• Testsigma — Powerful cloud-based test automation platform that lets you automate tests for web, mobile, desktop apps, and APIs in minutes. Sign up now!