Top 50 Consumer VC Funds & Investors in Japan (July 2026)

Portfolio highlights

• Triorb — Triorb is a technology company that specializes in robot mobility development with the help of software and hardware solutions.
• FullDepth — FullDepth is a drone development company.
• 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

• Diggle — DIGGLE is a service that provides fundamental management accounting management on the cloud called fraud management. It is possible to reduce the mistakes and man-hours of the fraud management task and easily carry out the fraud management task even if it is not an expert in finance or accounting.DIGGLE covers budget creation work and budgetrecord comparison work, especially in the foreman management work. In the budget creation work, the KPI and the budget are automatically created by inputting the target numerical value to the preset parameters utilizing the budget generator function, while the forecast contrasting work is made up of the financial information, non-financial information It is easy to calculate by simply entering the numerical value, and it is possible to carry out calculation of the forecast contrast.
• Luxna Biotech — Luxana Biotech is established to contribute to medical treatment for suffering patients, .
• Link Therapeutics — Link Therapeutics specializes in developing therapeutic methods for targeting autoantibodies and identifying pathogenic autoantibodies.

Portfolio highlights

• Fermelanta — Fermelanta produces rare plant-based ingredients through microbial fermentation. It engineers a cell to build a biosynthetic pathway of target molecules with gene transfer and disruption.
• Atom — Atom is a humanoid robot built platform. Its bipedal, dual-armed robots are designed not just as industrial tools but as collaborators that expand human capability. By combining advanced Physical AI—environmental perception, judgment, and action planning—with robust robotic hardware, Atom is creating adaptive agents capable of working acrossdiverse settings to augment or, where appropriate, replace human labor. The company positions these robots as a next step in societal evolution: a new class of machines that learn and behave in human-like ways to advance productivity, safety, and quality of life.
• Link Therapeutics — Link Therapeutics specializes in developing therapeutic methods for targeting autoantibodies and identifying pathogenic autoantibodies.

Portfolio highlights

• CaTe —
• FunPep — FunPep is an Industry-university collaboration bioventure company.
• NEXT NEW WORLD — NEXT NEW WORLD develops and manufactures natural products with low impact on the environment. It uses sustainable Japanese silk to manufacture apparel and cosmetic products.

Portfolio highlights

• Tacoms — CAMEL is a service that allows you to easily manage orders from multiple food delivery / takeout services on a single tablet.
• Any Style —
• Smile Robotics — Smile Robotics provides Service Robots in Japan.

Portfolio highlights

• Cake.jp — Cake.jp operates "Cake.jp", a comprehensive cake delivery site.
• 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.
• 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

• 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.
• 3DC — 3DC develops and manufactures a new carbon material, graphene meso sponge (GMS), for electrodes in next-generation batteries, capacitors, fuel cells and other energy storage and generation devices.
• Formas.AI — Formas.AI is a multi-modal, AI-powered design platform specifically built for architects, designers, and educators to generate and visualize creative architectural concepts.

Portfolio highlights

• Eko — Turning workplaces into places where all employees can thrive.
• FitHappy — FitHappy is a behavioral & medical-based wellness app to solve diet problems for good.
• Bioma — Media Desa Terkini

Portfolio highlights

• NovAccel — NovAccel operates as a deep tech company, ensure a stable supply of medical radioisotopes.
• AstroX — AstroX is a private space startup company that develops satellite launch vehicles for space development. It utilizes the rockoon method for developing launch vehicles and small rockets to help clients easily use space.
• Sonire Therapeutics — SONIRE Therapeutics Inc. (SONIRE) is working on a next-generation high-intensity focused ultrasound (HIFU) therapy system that will employ acoustic engineering (ultrasound) technologies developed through cutting-edge academic research. SONIRE has been working on a next-generation high-intensity focused ultrasound (HIFU) treatment system as a noveltherapeutic modality with the goal of giving cancer patients and their families a new future.

Portfolio highlights

• CaTe —
• EISHIN — EISHIN is a technology company that specializes in pet tech business, recruitment consulting, website creation, and development services.
• Yokohama Vanilla — Yokohama Vanilla is a Company which operates Yokohama-based gift sweets brand.

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

• LQUOM — QWAVE offers cryptography communication technology.
• Direava —
• Zerodoor HD — Zerodoor HD specializes in digital transformation in constructing industry.

Portfolio highlights

• BitStar — BitStar accelerates potential of video creators with power of proprietary database and technology.
• VideoVillage — VideoVillage is a video production company.
• Odd Concepts — Odd Concepts provide an wide portfolio of ready to use image recognition and search technology as a cloud based API service. Each customer has different requirements, and they assure ach customer requirement is met by our scientists tuning and combining analysis engines for optimal results.

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

• PIMTO — PIMTO Corporation is a technology company that provides digital solutions for location and facility management. Through its PIMT-0 service, it supports airports, stations, commercial facilities, hotels, factories, and public organizations in improving operations, profitability, and customer satisfaction. The company also focuses on addressingsocial challenges such as overtourism, regional revitalization, remote work creation, and improving access to essential services.
• Kakutoku — Nitlon Inc. provides crowdsourcing management services. The company was founded by Seiya Mitsuda on February 02, and is headquartered in Beppu, Japan.
• AlarmBox — AlarmBox develops services that make use of professional knowledge of technology and corporate screening, and changes common sense of risk management of enterprise.

Portfolio highlights

• Moi — Moi Corporation was founded to deliver on the promise of the Twitcasting social live streaming platform. We developed Twitcasting to enable people to stream and share live video anytime, anywhere - connecting the world in real-time. TwitCasting provides a live streaming social platform that enables real-time chat between broacasters andviewers, through apps or desktop. Users can follow their favorite broadcasters and receive notifications when new a new live stream is about to start. Broadcasters can save and publish their live streams for later viewing.In early 2014 we added "Collabo" to Twitcasting, enabling as many as 6 users to broadcast together, in a single display. Viewers can join a broadcast that is already streaming live and broadcast together. It is the first app to support multi-device broadcasting in a single stream on mobile and PC. Our user base has doubled every year, and hit 7.5 million in September, 2014. While the largest part of our base is in Asia, users in US, Brazil, Mexico and other Latin American countries are now growing rapidly. About 70% of our users are under 25 years old, & approximately 95% of broadcasters shoot on mobile. 
• Wonderplanet — Wonderplanet designs and develops native language applications and games for smart phones and tablets. The company was founded in 2012 and is based in Nagoya, Japan.
• EneCoat Technologies — EneCoat Technologies is working on materials development for perovskite solar cells and the commercialization of modules.EneCoat Technologies will create the future of energy through thin-film solar cells with the aims of protecting the environment and effectively utilizing natural energy sources.

Portfolio highlights

• AI Mage —
• 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.
• Albatross Technology — Albatross Technology is a technology company that develops offshore renewable energy devices and floating offshore wind turbines.

Portfolio highlights

• Balus — Balus provides motion capture, Unity systems, and AR live permanent venues.The company provides character content infrastructure using real-time animation, we also support the production of original content. Balus provides the necessary technology for event planning, casting, VR events, recording and creation of production images, real-timemotion capture during live events, real-time transmission, event management, and systems that allow users to participate in the production.
• Pale Blue — Water propulsion systems for sustainable space development
• OPTEMO — OPTEMO develops and supplies sales technology that allows businesses and customers to connect through a website.

Portfolio highlights

• Yosemite — Yosemite is a wellness company that provides health and wellness products, supplements, skincare, and personal care items.
• Innovative Space Carrier — Innovative Space Carrier is a aerospace company that offers space transportation systems, planning, drafting and technology strategies.
• Interstellar Technologies — Interstellar Technologies is a rocket development, manufacturing and launch service.

Portfolio highlights

• WAKA —
• 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

• PayJoy — Looking for a phone or a cash loan? PayJoy gives you credit with few requirements and in minutes. No late fees charged.
• Airhouse — Airhouse is the first all-in-one logistics platform for modern direct-to-consumer ecommerce companies. Launch a complex fulfillment operation in seconds.
• Diligent Robotics — We build robots like Moxi that assist hospital staff with routine activities so they can focus on caring for patients.

Portfolio highlights

• NodeX — We build open-source embedded software and cloud tools to help developers build secure IoT products, simply. By leveraging decentralized identity and h/w root of trust technology, IoT security platform "UNiD" enables developers to automate device management and easily build secure data pipeline between every devices and the cloud.
• Simplex Quantum — Simplex Quantum conducts research and development of AI-based solutions in the healthcare field and operates the SQ-bar service.It also offers the Shinden-kun, a portable device that can analyze the measured electrocardiographic information with AI and detect heartbeat turbulence.It was established on October 3, 2014 and headquartered inTakanawa, Minato-ku.
• Link Therapeutics — Link Therapeutics specializes in developing therapeutic methods for targeting autoantibodies and identifying pathogenic autoantibodies.

Portfolio highlights

• Dioseve — Dioseve is providing novel possibilities for all life.
• Yuimedi — Yuimedi acquires, investigate, analyze medical data and provides accurate solutions.
• Free Standard —

Portfolio highlights

• Ababa — Ababa provides recruitment and employment solutions.
• CraftBank — CraftBank, Inc. is the start-up that operates online matching platform between constructors with having relations with 22k specialty constructors (10% coverage in the market). The company was succeeded in Management BuyOut in April 2021.
• Josh Collaboration — Josh Collaboration is a software company that provides mailing, fax transmission, and partner management services.

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

• SOUNDRAW — Your personal AI music generator.
• Inter Holding — Inter delivers solutions for global difficulties using vacuum technology, which uses a particular check valve to maintain a 99.5% vacuum rate.
• Better Place — Better place vision is to create a world in which kind people can continue to be kind, as well as a society in which people can work in their own way without worrying about money.

Portfolio highlights

• Landsview — Landsview is an IT company that provides software development, numerical analysis, testing equipment, and measurement services.
• Flora — Flora develops a big data platform for female health, collecting data on individual symptoms, work performance, health conditions etc.
• Izanagi Games — Izanagi Games is an entertainment company that focuses on producing and publishing interactive games.

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.
• Hacobell — Hacobell is a logistics company that offers services in freight servicing, dispatch, and delivery.
• Power Wave — Power Wave seeks a carbon-neutral world using wave technology for wireless power, tackling global warming and fuel depletion.

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.
• LUC — LUC is a provider of the AI ​​x experience analysis platform "TERUS," .
• Tohakusha — Tohakusha is a creative agency that offers design, production and sale of digital content and EC websites, and content creation services.

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.
• TXP Medical — TXP Medical build a next-generation medical system through acute care.
• Startbahn — Startbahn develops Startrail, a sustainable and scalable blockchain infrastructure that assures the reliability, authenticity, and traceability of artworks.

Portfolio highlights

• Anaguma — Anaguma handles business development based on the philosophy of helping people with a sustainable structure. The company's business objective is to eliminate concerns about purchases and reservations, and it delivers before-sales social networks. It also provides matching services exclusively for housekeepers' personal contracts. Thecompany also offers influencer marketing services with a focus on removing waste completely from advertising and realizing a world in which good products can be sold regardless of advertising costs.Anaguma was founded in January 2016 and is headquartered in Tokyo, Japan.
• Ness — Ness is a tech company that offers 3 service websites and analytic tools for NFT marketing tool, TikTok product and NFT holders.
• Visual Bank — Visual Bank operates a stock photo business and provides an AI data platform. It aims to create a society in which the value of Japanese creations is maximized and optimized.

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.
• Pixie Dust Technologies — Pixie Dust Technologies is a developer of computational technologies, including its ultrasonic phased array system with which one can generate force in mid-air; transport things in mid-air without touching anything; target and deliver different sounds from person to person in a crowd; direct guide-dogs; and even apply this in agricultural farming.

Portfolio highlights

• 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.
• Solaris — Solaris commercializes, manufactures, and sells soft robotics using pneumatic artificial muscles. Solaris was founded in 2017 and was headquartered in Tokyo, Japan.

Portfolio highlights

• GIG-A — Open a bank account in Japan from your mobile with GIG-A. Receive salary, manage everyday spending, or transfer money with ease.
• Plainer — Plainer is an IT company that provides software development, data management, and SaaS solutions.
• Packative — Platform to design and order custom packaging online

Portfolio highlights

• pickupon — 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

• Mellia — Mellia is a beauty company that provides cosmetics, body care products, and supplements.
• Stacked — Stacked is a new membership platform where fans get the most out of their support for creators.
• Sunday — Founded in Thailand in 2017, Sunday is the first full-stack InsurTech group adopting data models and technology to offer multiple insurance products and services across the entire customer journey. The company provides auto insurance, health insurance, and travel insurance.Sunday reinvents the entire insurance offering and experience to ensurethat customers' needs are met anytime, anywhere.

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.
• Novius Company — Novius, Inc. is a Japan-based medical technology startup developing advanced glass-free 3D endoscopic imaging solutions. Its flagship platform, N-Vision3D, enables real-time 2D-to-3D conversion of endoscopic and microscopic images using proprietary AI-powered depth estimation. By enhancing depth perception without requiring specialized 3Dendoscopes, Novius improves surgical accuracy, supports medical training, and expands accessibility to next-generation imaging worldwide. Developed proprietary real-time 2D-to-3D imaging technology compatible with existing Olympus endoscopy towers and monitors.Completed initial clinical adoption with early users in Japan.Expanding global commercialization in minimally invasive surgery, cancer treatment, and medical education.

Portfolio highlights

• Ababa — Ababa provides recruitment and employment solutions.
• PlaceHolder — Placeholder is a space value creation company that provides people with inspiring and exciting experiences by fusing digital technology and real space.
• RICOS — RICOS is a tech company that optimizes manufacturing processes using AI, simulation, and high-performance computing technologies.

Portfolio highlights

• REVORN — REVORN is a fragrance AI and DX research and development company. They develop products such as odor sensors that can respond to odor issues and needs. They provide consultation at a range of levels, from identifying issues to developing solutions.
• Log build — Log build offers a new form of on-site management that enables productivity improvement and real-time visualization and sharing of on-site information through on-site management robots and VR software. The company provides AI development, VR development, construction site construction management robot, cloud site management, and construction siteplatform.
• LENZO —

Portfolio highlights

• Morght — Morght is an information technology service company.
• Requpo — Requpo is a brand-new salon reservation app that allows you to book a beauty salon without having to search.
• Hogetic Lab — Hogetic Lab specialize in DCaaS, AI development, and Data human resources training.

Portfolio highlights

• JiMED — JiMED designs & develops AI based brain-computer interface for implant in ALS patients to improve communication.
• Grafenary — Graphenary creates unique graphene optical devices using graphene materials with a variety of remarkable features.
• Neusignal Therapeutics — Neusignal Therapeutics is a medical company that develops therapeutic medicines for dementia and psychiatric illnesses.

Portfolio highlights

• LobbyAI — LobbyAI provides a wide range of services related to artificial intelligence, particularly around database construction and management.
• Ludens AI — Ludens AI develops AI systems for companion robots, focusing on interactive and responsive robotic experiences.
• Sales Retriever — Sales Retriever is a software company that offers corporate research-based sales negotiation with AI.

Portfolio highlights

• Naorai — Naorai is a food and beverage firm that manufactures wine, beer, spirits, and non-alcoholic beverages.
• Dioseve — Dioseve is providing novel possibilities for all life.
• 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

• MOVeLOT — MOVeLOT is an AI company that provides skeletal platform and robot planning, development, and production services.
• Kisui Tech — Kisui Tech is an agricultural AI robotics company that help farmers for farming.
• LYMPHOGENiX — LYMPHOGENiX is the pioneer company for lymphatic vessels regeneration. Our proprietary technology revitalizes the function of lymphatic vessels, making us experts in treating various health conditions. Our treatment is also great for skin-aging, obesity, Alzheimer's diseases and infertility. We believe in helping our clients improve their vitality and energy, one treatment at a time.

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

• 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.
• Rapidus — Rapidus is an Electronic component research, development, design, production, and sales that includes semiconductor elements and integrated circuits. Environmentally friendly, energy-saving semiconductors and semiconductor manufacturing technology are being researched and developed. Human resource development and training for the semiconductorsector.
• Sonocharge Energy — Sonocharge energy is developing a platform technology that enables a battery to charge. This technology energizes a range of markets such as transportation electric vehicles, e-mobility, electric bikes, scooters, aerospace, electric airplane, and drones.

Portfolio highlights

• Breaker — Breaker is Japan's global digital studio.
• New standard — NEW STANDARD Co., Ltd. moves society through three STUDIO businesses, and provides ideas that the millennials are enthusiastic and solutions for business issues for companies and brands.
• inXile Entertainment — inXile-entertainment.com is the home for inXile entertainment, developer of Wasteland 2, The Bard's Tale, Torment: Tides of Numenera, and The Mage's Tale video games.

Portfolio highlights

• MUSVI — MUSVI is an informartion technology company that provides spatial connectivity solutions, and community platform services.
• SPACECOOL — Spacecool offers zero-energy cooling materials that radiate heat to space, reducing temperatures and mitigating global warming.
• 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.

Portfolio highlights

• Fuller — Fuller is a software development company that builds mobile phone applications and provides internet media services. The company’s products include App Ape Analytics and App Ape Lab.App Ape Analytics is a trend research and analysis app that investigates the usage of Android terminal, and offers the viewing rate data; the number of active usersof the application; and user attribute information such as the user’s age gender, the user who is in possession of the application, and more.App Ape Lab analyzes the trends and offers real-time information of the app market.Fuller was founded in 2011 and is based in Chiba, Japan.
• Raksul — Raksul.inc is a fabless B2B platform builder. It aims to redesign and simplify value chains in legacy industries. It has enabled the "sharing economy" business model in printing, logistics and advertising, by connecting SME customers directly to excess capacities of existing players in various industries at a low cost.
• GROOVE X — GROOVE X is designing and developing a totally new, next-generation household robot that no one has seen before, that truly touches people's hearts and inspires real affection.

Portfolio highlights

• Spaceflux — As satellites become increasingly vital, Spaceflux tackles the growing challenges of orbital congestion and debris that put them at risk. Thanks to our proprietary global network of optical sensors, we provide data-driven space situational awareness services from LEO to Cislunar.
• Alloyed — Alloyed delivers cutting-edge innovation in materials science, additive manufacturing, and advanced metallurgy. Explore our technologies and career opportunities.
• UnaBiz — Based in Singapore, Taiwan and Japan, UnaBiz delivers end-to-end customised IoT solutions worldwide. Simple, cost-efficient & low maintenance