ES Investor

ES Investor, established in 2000 and headquartered in Seoul, Korea, is a venture capital firm. It invests in growth-stage companies within the information technology sector, having previously supported them from their early stages. The firm's mission is to foster the growth of Korean SMEs and startups by providing operational and strategic consulting, marketing support, and professional services, aiming to maximize the value of its portfolio companies.

Seyoung Moon

Managing Director

53 past transactions

Worksmate

Series B in 2025
Worksmate is a job search matching platform focused on the construction and architecture sectors, specifically catering to daily workers. The company provides human capital services aimed at optimizing workforce management within these industries. Through its innovative non-face-to-face brokerage application, Worksmate connects construction contractors with available workers, streamlining the hiring process and saving time for employers seeking labor. By addressing the unique needs of the construction workforce, Worksmate enhances job accessibility for daily workers while facilitating efficient recruitment for contractors.

XORBIS

Series B in 2024
XORBIS offers software, media hardware integration, and media management solutions for public and cultural spaces.

SSenStone

Venture Round in 2024
SSenStone Inc., founded in November 2015 and based in Seoul, South Korea, specializes in developing security and authentication solutions aimed at enhancing user privacy and transaction safety. The company offers a range of products including StonePASS, an integrated user authentication system certified by FIDO, StoneAUTH, a user random code login solution, and VOTC, a credit card designed to prevent fraud during transactions. Additionally, SSenStone provides Digital e-ID services to further secure online identities. The company's innovations focus on creating a safer and more convenient user experience in both digital authentication and payment processes.

Black Circle

Series B in 2024
Black Circle is an online marketplace specializing in car-related products, including tires, batteries, tools, and equipment. The company aims to streamline the purchasing process for automotive needs by offering a comprehensive selection of products along with essential information such as pricing, specifications, and stock availability. This approach enables customers to efficiently meet their automotive requirements in a single location.

ReadyPost

Seed Round in 2024
ReadyPost is a general meeting service platform that provides services for real estate general meetings.

Zim Carry

Series A in 2023
Zim Carry is a hospitality services company specializing in luggage management solutions for travelers. It provides same-day luggage transportation, allowing customers to have their bags picked up from airports and stations and delivered to their desired destinations. The company utilizes innovative technologies, including IoT unmanned lockers, to enhance its luggage storage and management services. By focusing on efficiency and accuracy, Zim Carry aims to alleviate the burden of commuting with luggage, enabling travelers to enjoy a more seamless travel experience.

Plandocs

Series A in 2023
Plandax is a distributor specializing in cosmetic products and services, streamlining the sourcing process for businesses. In addition to cosmetics, it offers a range of medical supplies, including devices, equipment, and pharmaceuticals, all accessible through its user-friendly platform, facilitating swift and convenient purchases.

mangrove

Venture Round in 2023
mangrove is a real estate and rental services provider.

Sweet Spot

Series B in 2023
Sweet Spot is a platform designed for businesses and retailers seeking marketing and sales space. It operates a store brokerage service that allows users to search for and register properties and spaces through a single application. This user-friendly platform enables clients to access a variety of available spaces tailored to their business needs, streamlining the process of finding suitable locations for marketing and sales activities.

Stoic Entertainment

Series A in 2023
Developer of online gaming platform designed to enjoy virtual reality content. The company's platform develops VR and metaverse games that provide the desired experience by moving to the desired time and space beyond any time, space, and situation, enabling gamers to enjoy themselves in their leisure time.

AulBio

Series A in 2022
AULBIO, Ltd is a biotechnology company based in Suwon-si, South Korea, founded in 2018. The company focuses on the research, development, and commercialization of innovative biopharmaceutical products, particularly leveraging advanced drug delivery technologies. One of its key offerings is Extenna, a microsphere drug delivery system designed to enhance the efficacy and safety of biopharmaceuticals while reducing the frequency of dosing. AULBIO also develops AUL001, a monthly injectable microsphere product that aims to improve the quality of life for diabetic and obese patients by minimizing the number of injections required. Through its tailored drug delivery solutions, AULBIO is committed to advancing patient care and improving health outcomes.

Kodebox

Series B in 2022
A blockchain technology company on a mission to create and enable smarter asset management systems.

Acon3D

Series A in 2022
Carpenstreet provides ACON and ABLER to reduce production time for digital content creators. ACON is an e-commerce platform that connects 2D/3D asset sellers and content creating buyers. ABLER is a software that helps content creators easily edit and utilize 3D assets to make creative scenes efficiently.

Ronfic

Series A in 2022
Ronfic is a company focused on creating innovative fitness healthcare solutions. It manufactures exercise coaching machines that utilize robotics to enhance personal fitness experiences. By developing software that analyzes individual body metrics and exercise history, Ronfic offers tailored exercise programs aimed at optimizing physical performance and health outcomes. The company's commitment to people-centered technology positions it at the forefront of the fitness and healthcare industries, providing users with precise exercise guidance to support their wellness goals.

HighScore Games

Venture Round in 2021
HighScore Games is a mobile game developer specializing in hyper-casual gaming experiences. The company focuses on creating multi-genre casual games, including sports, adventure, and arcade titles. With an emphasis on simple graphics and accessible gameplay, HighScore Games caters to a broad audience of Android and iOS users, allowing gamers to enjoy entertainment during their leisure time.

OKHOME

Series A in 2021
OKHOME is a technology-driven lifestyle platform that specializes in on-demand home and business cleaning services. The company provides a variety of services, including home cleaning, air conditioning maintenance, fogging, hydro cleaning, and car washing. Through its user-friendly application, clients can conveniently book guaranteed services in advance, catering to both individual and business needs. In addition to these core offerings, OKHOME also includes visitor surveys, subscription packages, and area cleaning services, positioning itself as a comprehensive assistant for various home-related requirements.

Poled

Series A in 2021
Poled is a manufacturer of car seats designed to enhance safety for infant passengers during car accidents. The company’s products are equipped with intelligent safety devices that proactively tighten the seat belt in response to sudden braking or sharp turns, thereby maintaining a secure environment for children. Poled's car seats have undergone rigorous real vehicle crash tests, ensuring that they meet high safety standards. By focusing on innovative safety features, Poled aims to provide parents with peace of mind while traveling with their children.

Neurophet

Series B in 2021
Neurophet, Inc., founded in 2016 and based in Seoul, South Korea, is a neuroscience company that specializes in developing advanced simulation software for brain stimulation effects. Their flagship product, Neurophet tES Lab, utilizes individual brain structure data and stimulus conditions to calculate and visualize these effects. The company's technology, known as Segengine, automatically segments brain magnetic resonance images into 107 regions within a minute, enhancing the precision of their neuro-navigation tools. These solutions are designed to assist clinicians in treating patients with brain diseases, including Alzheimer's, by providing detailed three-dimensional brain models and stimulation parameter guidance through deep learning and numerical optimization techniques.

ArtNGuide

Series A in 2021
ArtNGuide conducts online auctions and art fairs.

Super Kitchen

Series B in 2021
Super Kitchen is a food store chain that specializes in offering a variety of culinary products, including beef soups, tomato meatballs, and altari pickles. The company focuses on providing fresh and healthy ingredients along with refrigerated foods designed for side dishes, as well as curated recipes. By emphasizing quality and variety, Super Kitchen aims to enhance the dining experience for its customers, allowing them to enjoy new and diverse delicacies on a daily basis.

Atney

Series A in 2021
Atney is a retailer of bags, shoes, and clothes.

Upstairs

Series A in 2021
Upstairs is an online platform or B2B marketplace for customers to buy or sell previously used and owned mobile phones.

Sol Bio

Series A in 2021
SOL Bio is a biotechnology company focused on the research and development of exosome-based in vitro diagnostic products. The company utilizes advanced exosome isolation technology to create innovative diagnostic tools aimed at the early detection of various cancers and chronic diseases. By employing an on-site biosensor, SOL Bio enables researchers and healthcare professionals to access novel drugs and address areas with significant unmet medical needs. Through its platform, SOL Bio is positioned to contribute to advancements in cancer diagnostics and improve patient outcomes.

WASHSWAT

Series B in 2021
Washswat Inc. is a South Korean company established in 2015 that specializes in on-demand mobile laundry services. Based in Seoul, it operates through a network of specialized facilities and personnel that handle washing and drying. Initially launched in the Gangnam area, known for its concentration of high-end cleaners, Washswat has strategically expanded its services to various regions, including Seongnam, Hanam, Goyang, Gwangmyeong, Yongin, Suwon, Anyang, and Gwacheon, becoming a leader in mobile laundry services in Korea. The company utilizes IT technology to enhance its offerings, providing customers with a mobile application that allows them to track their laundry process and schedule pickups and deliveries from their doorstep. Washswat's meticulous approach ensures that every item is carefully recorded to prevent loss, thereby delivering a reliable service tailored to meet customer needs.

ImpriMed

Series A in 2021
ImpriMed, Inc. is a biotechnology company focused on providing personalized drug response prediction services for veterinary oncology. Established in 2017 and headquartered in Palo Alto, California, with an additional office in Seoul, South Korea, the company specializes in analyzing the drug responses of live cancer cells from pets, particularly in cases of lymphoma. By collecting genetic and cellular information from these cancer cells, ImpriMed develops precision medicine techniques that assist veterinary oncologists in selecting the most effective anticancer treatments for individual pets. This patient-derived database not only enhances treatment decisions for animals but also has the potential to translate insights into human oncology, ultimately aiding in the development of tailored cancer therapies for humans.

Makestar

Series B in 2020
Makestar is a platform that specializes in K-culture content, facilitating a connection between Hallyu stars and their global fanbase. The company enables artists and production companies to share their creative visions while offering fans the opportunity to engage directly with celebrities. Through its music crowdfunding platform, Makestar supports various projects related to Korean pop music, allowing fans to participate in the content production process and interact with their favorite stars. This unique approach not only fosters a sense of community among fans but also aids artists in expanding their reach and advancing their careers internationally.

Pet Friends

Series B in 2020
Pet Friends is an online pet care platform that specializes in the rapid delivery of pet supplies. The company operates an innovative logistics and delivery system designed to meet the needs of pet owners, allowing them to receive essential products within one hour. In addition to its delivery services, Pet Friends provides consultations and free snack sampling tests, making it easier for busy pet owners to care for their pets. By streamlining access to pet-related products and services, Pet Friends enhances the overall pet ownership experience.

Acon3D

Seed Round in 2020
Carpenstreet provides ACON and ABLER to reduce production time for digital content creators. ACON is an e-commerce platform that connects 2D/3D asset sellers and content creating buyers. ABLER is a software that helps content creators easily edit and utilize 3D assets to make creative scenes efficiently.

WeddingBook

Series C in 2020
WeddingBook helps users find the wedding reception sites, hotels for wedding guests, caterers, photographers, florists, bands, DJ's, videographers, dresses, cakes and other vendors to make wedding planning simple and wedding reception perfect.

Yam table

Series B in 2020
Yam table is an online seafood market.

Acon3D

Seed Round in 2020
Carpenstreet provides ACON and ABLER to reduce production time for digital content creators. ACON is an e-commerce platform that connects 2D/3D asset sellers and content creating buyers. ABLER is a software that helps content creators easily edit and utilize 3D assets to make creative scenes efficiently.

Fleximind

Seed Round in 2020
Fleximind is a mobile game production company focused on creating engaging entertainment experiences. The company specializes in developing a gaming platform that offers video content in the form of webtoons. Fleximind handles the entire process of planning, production, and distribution of both games and webtoons, ensuring that users have access to high-quality and enjoyable gaming experiences. Through its innovative approach, Fleximind aims to enhance the landscape of mobile gaming and entertainment.

Super Kitchen

Series A in 2020
Super Kitchen is a food store chain that specializes in offering a variety of culinary products, including beef soups, tomato meatballs, and altari pickles. The company focuses on providing fresh and healthy ingredients along with refrigerated foods designed for side dishes, as well as curated recipes. By emphasizing quality and variety, Super Kitchen aims to enhance the dining experience for its customers, allowing them to enjoy new and diverse delicacies on a daily basis.

AulBio

Series A in 2020
AULBIO, Ltd is a biotechnology company based in Suwon-si, South Korea, founded in 2018. The company focuses on the research, development, and commercialization of innovative biopharmaceutical products, particularly leveraging advanced drug delivery technologies. One of its key offerings is Extenna, a microsphere drug delivery system designed to enhance the efficacy and safety of biopharmaceuticals while reducing the frequency of dosing. AULBIO also develops AUL001, a monthly injectable microsphere product that aims to improve the quality of life for diabetic and obese patients by minimizing the number of injections required. Through its tailored drug delivery solutions, AULBIO is committed to advancing patient care and improving health outcomes.

mangrove

Series A in 2020
mangrove is a real estate and rental services provider.

Allo

Seed Round in 2020
Allo is a developer of a visual workspace platform that aims to improve collaboration among internal teams and external partners. The platform is designed to adapt to various workflows, facilitating activities such as brainstorming, project management, and team alignment. By leveraging technology, Allo offers a unique collaboration experience that includes web-based invitations and integrates with other applications, enhancing communication and teamwork. This focus on adaptability and integration allows organizations to streamline their collaborative efforts and achieve their goals more effectively.

Neurophet

Series A in 2019
Neurophet, Inc., founded in 2016 and based in Seoul, South Korea, is a neuroscience company that specializes in developing advanced simulation software for brain stimulation effects. Their flagship product, Neurophet tES Lab, utilizes individual brain structure data and stimulus conditions to calculate and visualize these effects. The company's technology, known as Segengine, automatically segments brain magnetic resonance images into 107 regions within a minute, enhancing the precision of their neuro-navigation tools. These solutions are designed to assist clinicians in treating patients with brain diseases, including Alzheimer's, by providing detailed three-dimensional brain models and stimulation parameter guidance through deep learning and numerical optimization techniques.

ONDA

Series A in 2019
ONDA is a hospitality technology company based in Seoul, South Korea, specializing in reservation management solutions for small to mid-size hotels and guesthouses both locally and internationally. The company offers a suite of products, including ONDA Plus for reservation management, ONDA Wave for integrated scheduling, and ONDA Star, a comprehensive property management system. Additionally, ONDA Easysell serves as a hotel extranet platform to enhance distribution capabilities. With a focus on optimizing hotel operations and increasing online visibility, ONDA aggregates real-time data from over 40,000 properties and distributes it across 50 online channels, enabling hotels to expand their reach and boost bookings. The company also publishes Magazine ON, which features interviews with accommodation owners and industry insights.

Sharetreats

Series A in 2019
Sharetreats Innovation is a company based in Makati, Philippines, that has developed a platform enabling consumers to send and receive vouchers redeemable at select nearby branches. After a payment is completed, treat codes are delivered via SMS, facilitating a seamless gifting experience. In addition to its voucher system, Sharetreats promotes a cultural movement encouraging social interactions through casual gifts, offering a variety of stickers and greetings suitable for various events.

Modusign

Series A in 2019
Modusign is an information technology company specializing in electronic contract services. It provides a web-based platform that facilitates the digital signing of contracts, streamlining the contract signing process and removing the necessity for in-person meetings. This innovative solution enables businesses to save both time and money, making contract management more efficient. By leveraging its technology, Modusign aims to enhance the overall experience of contract execution for organizations across various industries.

Tenping

Venture Round in 2019
Tenping is a South Korean company founded in 2015 that specializes in mobile advertising networks, focusing on enhancing the visibility of advertisements across various platforms, including mobile messengers, social networking services, and community websites. The company provides a performance marketing platform that allows advertisers to release content in a native format, distributing it effectively across social networks, blogs, and mobile applications. Tenping's technology enables real-time measurement and evaluation of advertising performance, allowing marketers to analyze audience behavior and manage advertising efficiency effectively. Since its inception, Tenping has garnered the use of over 100 advertising companies, successfully launching more than 600 advertising campaigns.

Ghost Kitchen

Series A in 2019
Ghost Kitchen is a shared kitchen company that focuses on food preparation and delivery services. It offers dedicated kitchen spaces that allow multiple restaurant operators to efficiently prepare meals for delivery. In addition to providing physical kitchen facilities, Ghost Kitchen also develops a restaurant management platform that aids owners in optimizing kitchen operations. This platform enhances delivery and order management by offering valuable insights into delivery trends, enabling restaurant owners to better manage their operations. By combining shared kitchen spaces with advanced management tools, Ghost Kitchen supports restaurant owners in scaling their businesses effectively.

Tripbtoz

Seed Round in 2019
Tripbtoz, Inc. is an online travel agency based in Seoul, South Korea, founded in 2015. The company operates a comprehensive hotel booking platform that allows users to search for and reserve accommodations worldwide. In addition to hotel bookings, Tripbtoz offers personalized travel guides and enables users to book flights and rent cars. The platform encourages user engagement by allowing travelers to share and view travel videos, providing real-time insights into various travel experiences. Users can also earn trip cash by participating in activities that help them explore virtual regions and accommodations. Through its innovative approach, Tripbtoz aims to enhance the travel planning experience by offering tailored recommendations and connecting travelers with diverse vacation packages.

Mr.Pic

Venture Round in 2018
Mr.Pic Corp. is a South Korean company that operates an online portal providing comprehensive information about new and used vehicles. Launched in February 2014, the platform serves as a comparative estimation tool, offering users access to detailed vehicle specifications, engine ratings, safety statistics, and information about dealerships, including their past performance. This enables potential buyers to make informed decisions regarding their vehicle purchases. In addition to automotive data, Mr.Pic also covers topics related to lifestyle and gaming, expanding its reach beyond just automobiles. Based in Seoul, the company aims to streamline the car-buying process and enhance the overall consumer experience in the automotive market.

Riiid

Series B in 2018
Riiid is a global innovator in AI-powered education solutions, specializing in adaptive assessment platforms that personalize learning experiences for students worldwide. Launched in 2017 with Santa TOEIC, its flagship product has reached over one million users in Korea alone, demonstrating proven efficacy. Expanding globally, Riiid operates Santa TOEIC in Japan and offers Santa SAT in Vietnam. Its scalable AI technology provides each student with a personalized tutor, enhancing learning outcomes while reducing costs compared to traditional methods. By democratizing educational opportunities, Riiid is rapidly transforming the learning landscape.

Scatter Lab

Series B in 2018
Scatter Lab is a company that focuses on developing AI-based mobile applications aimed at creating social AI chatbots. These chatbots are designed to facilitate human-like conversations, enhancing the interactive experience between users and artificial intelligence. The application leverages chat content to analyze users' moods, lifestyles, and mental statuses, allowing it to suggest appropriate conversational topics. By utilizing proprietary mobile messaging data for pre-training, Scatter Lab emphasizes social interaction, enabling clients to engage more meaningfully with others through its technology.

Eastend

Venture Round in 2018
Eastend is an e-commerce company focused on the fashion industry, specializing in a diverse selection of online small designer brands. By leveraging various platforms and adapting to current trends, Eastend enables retailers to effectively market their apparel and fashion clothing to a broad audience. The company aims to create a vibrant marketplace that showcases unique designs, catering to consumers seeking distinctive fashion options.

Monolith

Seed Round in 2017
Monolith Inc., founded in 2014 and headquartered in Jeju, South Korea, specializes in developing mobile games. In addition to its gaming ventures, the company is also focused on creating innovative smart parks that integrate technology with play spaces for children. By combining entertainment and recreational infrastructure, Monolith aims to enhance the play experience and foster creative environments for younger audiences.

Riiid

Series B in 2017
Riiid is a global innovator in AI-powered education solutions, specializing in adaptive assessment platforms that personalize learning experiences for students worldwide. Launched in 2017 with Santa TOEIC, its flagship product has reached over one million users in Korea alone, demonstrating proven efficacy. Expanding globally, Riiid operates Santa TOEIC in Japan and offers Santa SAT in Vietnam. Its scalable AI technology provides each student with a personalized tutor, enhancing learning outcomes while reducing costs compared to traditional methods. By democratizing educational opportunities, Riiid is rapidly transforming the learning landscape.

H2O Hospitality

Series A in 2016
H2O Hospitality, Ltd. is a hospitality management company based in Seoul, South Korea, specializing in the Korean and Japanese markets. Established in 2015, it is recognized as the largest vacation rental management company in its region. H2O Hospitality offers a range of services including profit management, housekeeping and facility management, customer call response, online sales and marketing, as well as reservation and inventory management. The company utilizes an innovative property management system (PMS) that automates operational flows by linking calendars between guests, rooms, and housekeepers, thereby significantly reducing fixed operational costs and enhancing facility yield. Additionally, H2O Hospitality provides digital management solutions to streamline operations for vacation rental properties, facilitating bookings from various online travel agencies and optimizing customer attraction.

WeddingBook

Series B in 2016
WeddingBook helps users find the wedding reception sites, hotels for wedding guests, caterers, photographers, florists, bands, DJ's, videographers, dresses, cakes and other vendors to make wedding planning simple and wedding reception perfect.

ONOFFMIX

Series A in 2016
ONOFFMIX Inc., founded in 2010 and based in Seoul, South Korea, is a leading event management and promotion platform that facilitates both online and offline events. The company's platform allows organizations to host and manage various types of events, including conferences, seminars, fundraisers, and lectures. ONOFFMIX provides tools for setting up event websites quickly, managing online registrations, and promoting events through diverse channels. With a focus on the Meetings, Incentives, Conventions, and Exhibitions (MICE) industry, ONOFFMIX leverages social media to help clients build meaningful connections and effectively manage their events.

Sendy

Sendy Corp. is a cargo delivery and logistics consulting service that simplifies transportation management for its users. Founded in 2013 and based in Busan, South Korea, the company offers an online platform that allows customers to book shipments, make payments, and inquire about shipping details in real-time. Users can choose from various vehicle types to suit their needs, whether for personal or corporate transportation. By providing features such as fare estimation and real-time status updates, Sendy enhances the overall logistics experience, making it more accessible and efficient for customers.
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