Top 50 Construction Startup Investors in Japan (October 2026)

Portfolio highlights

• AI Mage — AI Mage is an IT company that provides AI solutions for anime production business industries.
• Umami United — Umami United is a plant-based food brand with unique focus on Japanese food technologies and traditional ingredients to make delicious and healthy food to unite people at one table. The wide lineups are designed to be vegan-friendly, buddhist friendly, and halal friendly for all.
• Gravity Design — Gravity Design is a full-stack platform consolidating supply chains for home interior materials.

Portfolio highlights

• 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.
• Carbon CryoCapture — Carbon CryoCapture specializes in the carbon dioxide separation systems aimed at creating economically viable, energy-efficient, and genuinely sustainable CO2 separation and recovery technologies. The company is dedicated to deploying cost-effective, efficient systems for CO2 capture that integrate smoothly with current infrastructures, all whileenhancing energy consumption and production. This enables clients to attain zero emissions throughout the development and application of resources.

Portfolio highlights

• Sazo — Sazo specializes in constructing a global e-commerce and logistics network with AI.
• Dioseve — Dioseve is providing novel possibilities for all life.
• Genba Hub — Genba Hub specializes in providing business management systems for construction and maintenance enterprises.

Portfolio highlights

• LobbyAI — LobbyAI provides a wide range of services related to artificial intelligence, particularly around database construction and management.
• Genba Hub — Genba Hub specializes in providing business management systems for construction and maintenance enterprises.
• Monochrome — Monochrome is creating a home operating system in order to power the next generation of energy-producing homes and roofs. The company is based in Chuo Ward, Tokyo.

Portfolio highlights

• CaTe — CaTe is based in Tokyo. CaTe develops and manufactures a Digital Therapeutic (DTx) for remote cardiac rehabilitation. Their invention allows heart disease patients to safely and successfully complete cardiac rehabilitation utilizing standing exercise in a confined space, such as at home, without the use of ergometers or similar instruments.
• AIONA — AIONA uses AI to produce high-quality products and provides everyone with access to knowledge.
• Yoom — Yoom is a consulting company that offers system development services on AI, IoT, data solutions, and cloud integration.

Portfolio highlights

• Kaon — Discover prompts and AI apps built by a global community, or publish your own. FlowGPT is an open platform for building and sharing with AI.
• Tandems — Tandems enhances the way financial advice is delivered by equipping advisors, bankers, and agents with data-driven insights and personalized recommendations. Tandems focuses on improving institutional operations through automation and intelligent decision-support tools that streamline workflows and client engagement. The company’s technology isdesigned to augment human expertise, allowing financial professionals to allocate more time to strategic guidance and relationship building.
• PlayFirst — PlayFirst is the global leader in mobile games for family and friends.PlayFirst develops great mobile games for family and friends, and tens of millions of fans worldwide have played our hit titles. PlayFirst's portfolio of games includes the DASH® series (Diner Dash®, Wedding Dash®, Cooking Dash®, Hotel Dash®, SpongeBob Diner Dash® andHotel Transylvania Dash®) and Stars series (Mall Stars™).

Portfolio highlights

• Any Style — Any Style develops a messaging app from voice actors that regularly sends messages via subscription. It also engages in the planning and production of audio content and the VTuber production business.
• Arrowsmith — Arrowsmith is committed to unlocking the full potential of bacteriophages to revolutionize the treatment of bacterial infectious diseases. Through transformative science, Arrowsmith strive to create a world free from the pain and fear caused by antimicrobial resistance.
• Typewriter Therapeutics — Typewriter Therapeutics, Inc. develops mRNA-based gene therapies using a gene writing, or gene writing, platform for precise insertion of therapeutic genes into the genome. The company builds on transposon-based technologies originating from research by Professor Emeritus Haruhiko Fujiwara at the University of Tokyo. Its programs focus on all‑RNA,nonviral gene writing systems that repurpose natural genetic elements to address severe genetic disorders with limited treatment options. Typewriter Therapeutics conducts research and development across its U.S. and Japan operations and collaborates with investors and partners to advance genetic medicine candidates toward the clinic.

Portfolio highlights

• FiT — FiT encourages the use of information technology in fitness to address industrial concerns. We will build a highly sustainable fitness facility using a business model that allows consumers to easily use the gym without being burdened by price or procedures, while also allowing owners to build a very successful business with low running costs.
• FinT — FinT operates SNS marketing businesses and young women's media.
• Aoyama Arts — Aoyama Arts is an architecture and consulting company that develops design offices and supports land search and financing plans.

Portfolio highlights

• WED — One Financial is an application that anyone can introduce card settlement immediately with one smartphone.
• Josys — Stop letting runaway SaaS costs & unsecured SaaS access ruin your day. Josys is the only SaaS Management Platform that provides true 360-degree control.
• Deeping Source — Real-time Video Analytics based on Data Anonymization. High-accuracy computer vision for large-scale spaces: hypermarkets, shopping malls, convention centers, hospitals, logistics warehouses, construction sites, etc.

Portfolio highlights

• LQUOM — QWAVE offers cryptography communication technology.
• Etaily — Etaily provides e-commerce and retail solutions in the Philippines, enabling brands with end-to-end services, from store management to fulfillment.
• Link Therapeutics — Link Therapeutics specializes in developing therapeutic methods for targeting autoantibodies and identifying pathogenic autoantibodies.

Portfolio highlights

• Lingble — Jumpstart your e-commerce with Lingble: a full-service solution for companies to effortlessly sell their products globally online.
• Vlightup — Vlightup is a technology company dedicated to enhancing security and trust in the Web3 ecosystem. Vlightup develops innovative solutions that integrate blockchain technology to create transparent and fair digital economic infrastructures. Vlightup continues to develop cutting-edge technologies that reinforce digital security, empowering users toengage in blockchain transactions.
• Bridgesmile Corporation — Bridgesmile operates an on-site installation and replacement service platform.

Portfolio highlights

• Grafto — Grafto operates “Mylo Magazine,” a platform dedicated to sharing and promoting trend culture, where readers can explore the latest developments in lifestyle, fashion, art, and emerging cultural movements through engaging and curated content.
• FLASH — FLASH is an entertainment and technology startup.
• OPERA TECH — OPERA Lead is a sales-focused AI web chatbot service from Opera Technology that turns websites into 24/7 "exhibit booths" for lead generation.It deploys AI sales assistants on existing sites (via simple tag embedding, no redesign needed) to engage the 99% of visitors who don't convert via inbound methods alone. Key capabilitiesinclude direct booking of meetings, guiding users to whitepapers/webinars, and targeted lead qualification for efficient deal progression.

Portfolio highlights

• ASUENE — Asuene involves in clean power retail business, retail SaaS business, etc.
• Recompound — Recompound is a financial services startup that acts as a personal investment advisor for individuals to grow their stock market portfolios.
• Testsigma — Powerful cloud-based test automation platform that lets you automate tests for web, mobile, desktop apps, and APIs in minutes. Sign up now!

Portfolio highlights

• Ugo — UGO is creating future avatar robots and a platform that connects the administration of multiple robots to achieve the ''fusion of humans and robots,'' or ''collaboration with robots to perform employment that used to be performed only by humans.
• New Space Intelligence — We provide Satellite data pipeline services and Remote sensing Satellite Solutions with AI, machine learning and Big data such as Change detection through optical and SAR time series data, crop pattern classification, Infrastructure monitoring.
• Tokyo Artisan Intelligence — Tokyo Artisan Intelligence develops od purely domestic AI high-speed code generation tools as part of deep learning and hardware research. Their objectives are to contribute to the development of new computational technology and its application in society, particularly by providing experts through the training of doctoral students.

Portfolio highlights

• WOTA — WOTA specializes in the development of small-scale decentralized water recycling systems and autonomous control systems for water treatment. The company has established a cyclical model in which wastewater is reimagined as the most accessible water source and is recycled on-site for repeated domestic use. WOTA has created an innovative householdsolution known as a small-scale decentralized water recycling system, which transforms the seemingly unattainable goal of water recycling at the household level into a reality, utilizing our core technology powered by autonomous water treatment managed through sensors and data science.
• Stayway — Stayway is operating the world's largest hotel and vacation facility search and comparison site.
• Q.ENEST Holdings — Q.ENEST Holdings is an electric power business holding company that focuses on renewable energy and greentech solutions. The company develops and operates solar power and other renewable generation assets and provides retail electricity services under the Q.ENEST brand. It offers gentailer-model services covering power generation through to sales,along with VPP and grid-scale storage businesses. Q.ENEST Holdings also provides greentech and ETRM services that use data science, machine learning, and proprietary algorithms for power trading and risk management. Its platform business aggregates and optimizes CO2-free power supply for households and corporate customers in Japan.

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

• IGU — IGU is a professional team dedicated to designing, refining, and delivering exceptional entertainment experiences. With a strong focus on creativity, quality, and innovation, IGU brings together talented professionals who transform ideas into engaging and memorable experiences.
• GEMBA — GEMBA develops on-site improvement DX services specialising in the manufacturing industry.
• NexusAdvisors — NexusAdvisors operates AvaCareer, an AI-powered recruitment platform that leverages intelligent AI agents to support both companies and job seekers by streamlining hiring processes, enhancing candidate matching, and improving recruitment efficiency.

Portfolio highlights

• D-Chain — D-Chain offers services related to IT development and production in the Web3 and Web2 fields.
• Xtraveler — Xtraveler is a travel company that provides hotel searches, accommodations, and lodging facilities.
• Piece — Piece is a digital real estate platform offering the easiest and most transparent way to participate in income-producing real estate in Europe. Our mission is to make real estate ownership inclusive and more accessible.

Portfolio highlights

• MamaWell —
• Colega AI — Colega AI is the AI employee for local businesses. It handles the day-to-day work across your store, from marketing to customer communication to operations, so you can focus on running your business.
• Ocean — Ocean is a technology-driven company dedicated to promoting digital transformation in the tax-free and retail shopping sectors. By developing innovative digital platforms and integrated solutions, the company streamlines tax refund processes and enhances the overall shopping experience for international travelers and retailers alike.

Portfolio highlights

• AiCAN — AiCAN provides system planning and development, data analysis, IT, and consulting services related to child welfare.
• CureApp — CureApp is a digital health startup.The firm is one of the leading players in the medical app vertical under the theme of “app exhibits therapeutic effects against diseases” and launched a nicotine addiction treatment app in February 2015, which was jointly developed with Division of Pulmonary Medicine, Keio University’s School of Medicine. It iscurrently conducting clinical trials in many locations.
• Cocohole Japan — kokohore Japan offers advertising services intended to help companies sell their products. They provide custom-made promotion planning, provide the content to the media to plan and manage owned media, and assist in product development, providing businesses with the assistance they need to survive.

Portfolio highlights

• 10pct. — 10pct. is a consulting firm that provides hotel management, marketing, and operation support services to its clients.
• Sharing Energy — Sharing Energy is providing energy supply and energy management services.
• Monochrome — Monochrome is creating a home operating system in order to power the next generation of energy-producing homes and roofs. The company is based in Chuo Ward, Tokyo.

Portfolio highlights

• CLAS — Class is a connection between people, the value of money, time and things.
• Wunderbar — Wunderbar provides intellectual property along with branding and marketing services.
• Ispace Technologies — ispace is a private lunar robotic exploration company that is developing micro-robotic technology to provide a low-cost and frequent transportation service to and on the Moon, conduct lunar surface exploration to map, process and deliver resources to our customers in cislunar space.

Portfolio highlights

• WAKA — WAKA is a studio that produces metaverse games and specializes in contract development for domestic businesses.
• Rehabilitation 3.0 — Rehabilitation 3.0 focuses on a preventive medical system that provides AI assessment and tracking on health, exercise, mood, and wellness.
• Movus Technologies — Movus Technologies Indonesia is automotive company that provides car ownership rental services.

Portfolio highlights

• Caguuu — Caguuu offers high-quality designer furniture at affordable prices, through e-commerce, eliminating middlemen and store operating costs.
• Smart Craft —
• Link Therapeutics — Link Therapeutics specializes in developing therapeutic methods for targeting autoantibodies and identifying pathogenic autoantibodies.

Portfolio highlights

• RemitAid — RemitAid is a fintech company that operates an overseas payment platform for cross-border transactions between companies.
• xCARE — xCARE specializes in the development and commercialization phases of the pharmaceutical and medical device industries.
• Bizibl Technologies — Bizibl Technologies provides SaaS services for recruitment events.

Portfolio highlights

• Kaimak — Kaymak is a recruitment platform that focuses on creating a recruitment website, planning a recruitment strategy, and managing candidates.
• D-Chain — D-Chain offers services related to IT development and production in the Web3 and Web2 fields.
• Rayout — Rayout is a business consulting company that provides creative content development, recruitment videos, and web production services.

Portfolio highlights

• 10pct. — 10pct. is a consulting firm that provides hotel management, marketing, and operation support services to its clients.
• Ocean — Ocean is a technology-driven company dedicated to promoting digital transformation in the tax-free and retail shopping sectors. By developing innovative digital platforms and integrated solutions, the company streamlines tax refund processes and enhances the overall shopping experience for international travelers and retailers alike.
• Voxela, Inc. — Voxels is an AI powered platform on a mission to reinvent caregiving by making incident detection intelligent and actionable.

Portfolio highlights

• Facilo — Facilo is a real estate communication provider that uses cloud computing to enhance sales and ease transactions of real estate brokerage.
• PeopleX — PeopleX encourages and assists employees in their professional development.
• Power Laser — Power Laser is a startup company that offers a range of power laser technologies and applications. The company develops high-power laser systems, related components, and software for advanced industrial and scientific applications. Its mission, “Power lasers open the future,” reflects its focus on next-generation photonics and precision laserinnovation for manufacturing and research sectors.

Portfolio highlights

• HANOWA — Hanowa is a matching platform between freelance dental hygienists and dental clinics. It matches dental care workers who want to work in their spare time with dental clinics. It can be used for studying, side jobs, and job change activities.
• Tooon — Tooon Inc. is a technology company that deals with development and operations of business management tools .
• Address — ADDress is a provider of co-living spaces in both urban and rural areas, enabling people to live in a range of luxurious residences at fixed prices.

Portfolio highlights

• Comvey — Comvey provides a shopping experience that is friendly to people and the earth. It primarily offers a foldable share bag online.
• SoVa — SoVa operates an accounting firm that combines technology and experts.
• ElevationSpace — ElevationSpace offers high quality & well equipped workspaces giving tenants a nurturing environment .

Portfolio highlights

• MoonJapan — MoonJapan is an educational impact startup that offers a variety of programs and thorough assistance.
• Respo — Respo is a service that enables people to save money by buying things at a discount.
• 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

• bgrass — bgrass is a consultation support platform for women working in the IT industry.
• Kids Snack Lab — Kids Snack Lab is a food manufacturing firm that produces and sells nutritional sweets for children.
• Metaverse Creators — Metaverse Creators is a feature-rich virtual platform providing gamers with a wide range of games, creation tools, and avatar editing tools.

Portfolio highlights

• TRiCERA — TRiCERA provides a platform for artists to advance their careers. It breaks down the barriers of language and distance that artists from all over the world face. It fosters an environment in which participating artists can freely sell their works to collectors and art enthusiasts worldwide.
• 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.
• Baby’s Fun — Baby’s Fun is a baby food kit and infant food kit manufacturing company. The company's food kit offers pre-cut ingredients, enabling customers to reduce food waste.

Portfolio highlights

• Sukedachi — Sukedachi had focused on the unique business habit in the Japanese construction industry that construction workers are order receivers as workmen themselves and are also orderers as small enterprises, and the firm started this service. Sukedachi allows workpeople specialized in construction works receive to notification of recruitment ofconstruction jobs which meet their pre-registered conditions including residence and occupation. With this service, construction workers who are seeking jobs can contact directly to each desired construction site, and constructors suffering from chronic manpower shortage can recruit workers on almost ideal on-demand conditions.

Portfolio highlights

• Conoc — Conoc specializes in the cloud-based business management system, cloud storage, and portal management for the construction business.
• Lbose — Lbose is an internet based company.
• LAPRAS — LAPRASis an Artificial Intelligence company.

Portfolio highlights

• CirclePe — Backed by India's Top Investors, connect us with your new Landlord & get a Zero Deposit move-in for the 1st time ever.
• Receptionist — Delighted develops an application for reception services. The company was founded in 2016 and is based in Tokyo, Japan.
• Zeelab Pharmacy — Zeelab Pharmacy brings to you a high quality affordable generic medicines delivered to your doorstep with ecommerce & network of over 200+ stores in India.

Portfolio highlights

• Utoniq — Utoniq service allows them to collect the works of the artists they support digitally in the form of trading cards. Trading cards will be collected as proof of support for the creators. It is a brand-new trading card service that is both enjoyable to collect and enjoyable to exchange. They provide a service lineup in order to continually increasefan engagement. They can make flexible proposals based on the needs of artists, creators, influencers, anime characters, and so on.
• AVA Intelligence — AVA Intelligence is a Internet service development company.
• Transcelestial Technologies — Secure, last mile connectivity with fiber-like speeds using next gen Wireless Fiber Optics or Lasercomms, at a fraction of the deployment time and cost of fiber.

Portfolio highlights

• Napcial — Napcial is an innovative AI-powered legal application designed to help couples update and personalize their wedding vows in a way that reflects their evolving relationship, values, and legal commitments.
• Address — ADDress is a provider of co-living spaces in both urban and rural areas, enabling people to live in a range of luxurious residences at fixed prices.
• Smartround — Smartround is a specialized finance management platform for startups and their investors. For start-ups, for entrepreneurs who are not familiar with finance, simply enter the necessary information according to the guide, prepare appropriate financing round, and prepare a function that can simulate and execute a capital increase. Support informationsharing and communication with shareholders even after the capital increase.

Portfolio highlights

• BACKSEAT — BACKSEAT provides embedded crypto exchange and Web3 Services.
• Forest — Forest Co., Ltd. operates as an e-commerce aggregator, seeks to identify sustainable, high-quality products and brands that embrace the spirit of Japan and help them grow and enter the global market by using the power of technology.
• Super Galaxy Records — Super Galaxy Records is a company that plans and produces IP that creates new works, and is also a record company that produces and manages voice actors and artists.

Portfolio highlights

• Newlocal — Newlocal offers planning, development, and consulting services related to real estate, construction, and community development sectors.

Portfolio highlights

• Prorata.AI — ProrataAI builds technology that enables generative AIs to properly attribute contributing content and share revenues on a per-use basis.
• Innovacell — Wir entwickeln innovative zelltherapeutische Arzneimittel zur Behandlung von Stuhl- und Harninkontinenz durch Regeneration.
• ASTRO — Situs Belanja Kebutuhan Harian Online dengan Harga Terjangkau dan Kualitas Terbaik. Pesan Kebutuhan Harian di ASTRO Pasti Sampai dalam Hitungan Menit

Portfolio highlights

• Wify — WIFFY Technology Private Limited introduces carpenters who are trained to provide end to end modular furniture installation services. Kitchens, wardrobes.
• WOTA — WOTA specializes in the development of small-scale decentralized water recycling systems and autonomous control systems for water treatment. The company has established a cyclical model in which wastewater is reimagined as the most accessible water source and is recycled on-site for repeated domestic use. WOTA has created an innovative householdsolution known as a small-scale decentralized water recycling system, which transforms the seemingly unattainable goal of water recycling at the household level into a reality, utilizing our core technology powered by autonomous water treatment managed through sensors and data science.
• Smartstaff — Manage your workforce's attendance & payroll while using our powerful automation tools to optimize & improve their productivity

Portfolio highlights

• New Chat — New Chat is a technology company that develops communication software focused on visual and interactive group interactions. The company builds platforms designed to help small, close-knit groups of people share daily experiences through short-form multimedia content. Its primary software automates the creation of collaborative video logs byprompting users for brief, periodic updates throughout the day. By structuring messaging around shared visual moments, the business aims to provide an alternative to traditional text-based group chats and standard social media networking.
• First Coffee — Discover the best specialty coffee in India with our range of single origin Arabica beans and exclusive merchandise. Shop online at First Coffee for freshly roasted, quality blends.
• Tellus Global — Tellus Global is a company focused on creating new businesses using satellite data, AI, and software technologies,Its core mission is to make satellite information accessible and useful across industries such as agriculture, environmental conservation, construction, finance, and disaster management.

Portfolio highlights

• Sisuta — Sisuta is a purpose-driven organization committed to addressing fundamental social issues by seamlessly integrating human insight with advanced technology, creating innovative solutions that empower individuals, strengthen communities, and unlock the full potential of both people and digital tools to drive sustainable social impact.
• BASE — BASE provides web-based services that develop and build e-commerce platforms. The company provides its services across Japan, such as net shop creation, development of shopping applications, development of online payment, and other services.
• Tokoshie — Building infrastructure that inspires everyone to create.

Portfolio highlights

• Sazo — Sazo specializes in constructing a global e-commerce and logistics network with AI.
• Bridgesmile Corporation — Bridgesmile operates an on-site installation and replacement service platform.
• Infratech Japan Holdings — Infratech Japan Holdings operates a roll-up M&A and business succession model targeting civil engineering and manufacturing firms that maintain social and industrial infrastructure. By consolidating these entities, the organization delivers a hybrid framework of centralized operational support, management guidance, and AI-driven digitaltransformation to enhance individual corporate value. This ecosystem generates systemic value by optimizing resource allocation and driving cross-company synergies to resolve widespread aging infrastructure challenges.

Portfolio highlights

• HOMMA — Inspired Modern Living. Homes to elevate healthy urban lifestyles. Design. Build. Technology.
• Unito — Unito is a hospitality firm that offers lodging and accommodation facilities.
• Amateras Space — Amateras Space is a startup driven by the mission to “expand the realm of human activity,” aiming to establish a next-generation spacesuit business by developing advanced, practical technologies that enable humans to work, explore, and thrive in space and other extreme environments.

Portfolio highlights

• FromTo — FromTo offers construction services.
• Wakaze — Wakaze is a Japanese sake brewing startup.
• FLATBOYS — FLATBOYS specializes in planning, development and operation of internet business.

Portfolio highlights

• Kinish — Kinish is a company leading a revolution in dairy products. To achieve environmentally friendly and delicious dairy products, we are developing a special rice variety that produces milk proteins.
• Kwahuu Ocean — Kwahuu Ocean develops sustainable squid farming systems.
• Spine Chronicle — Spine chronicle is a medical device manufacturing firm that specializes in developing orthopedic medical equipment.

Portfolio highlights

• Kamereo — Purchasing platform and Tech-enable Veggie supply for Restaurants in Vietnam
• Stan — Stan has built a platform that allows esports fans to collect, play and trade digital collectibles such as non-fungible tokens (NFTs) of their favorite esports players and content creators, through which they can win physical and virtual world perks and rewards such as getting a chance to meet their favorite players.
• toggle — toggle is the social implementation of technology in real estate, real estate, construction, and finance.

Portfolio highlights

• Opt Fit — Opt Fit is a fitness industry that provides fitness, wellness and health-care services.
• Yondemy — Yondemy is an online platform for children reading books.
• Flow Solutions — You have to know to grow. Flow’s AI-powered platform focuses retail executives, marketing and store teams on actionable steps to delightful customer experiences. Flow leverages IoT and existing retail data sources to standardize data communication across large retail chains while using AI to enable data-centric decision-making through all levels ofthe organization.