Stonebridge Ventures

Stonebridge Ventures is a venture capital firm established in 2008. The firm focuses on investing in early-stage companies across various sectors, seeking to identify and support innovative startups with high growth potential. Stonebridge Ventures aims to provide not only financial resources but also strategic guidance to help these companies navigate their development and achieve long-term success. Through its investments, the firm fosters entrepreneurship and contributes to the growth of the startup ecosystem.

Yoo Seung Woon

CEO

32 past transactions

Portal 301

Seed Round in 2025
PORTAL301 is a tech startup focused on transforming the UI/UX in the robotics industry. It focus is on the nuclear power plant decommissioning and powder coating sectors.

MINDs AI

Series A in 2024
Minds AI specializes in artificial intelligence, biotechnology, and mental health services, focusing on preventive care. The company offers a range of services including education, training, and counseling that address depressive symptoms, stress analysis, and emotional regulation. By providing these resources, Minds AI aims to help clients improve their mental and physical well-being, fostering resilience and emotional strength.

Daan Biotherapeutics

Series A in 2024
DAAN Biotherapeutics focuses on developing innovative cancer treatments, particularly for lung cancer. The company conducts research and development in immune-oncology, utilizing advanced strategies such as anticancer immune cell therapy that employs natural killer (NK) cells and T cell receptors. DAAN Biotherapeutics aims to create effective therapies by integrating various treatment modalities, including cell therapies, antibodies, and small molecule inhibitors. Their work involves conducting clinical trials based on independent research infrastructure, with the objective of providing healthcare providers with effective options for treating cancer patients.

Peekaby

Seed Round in 2023
Peekaby specializes in creating play kits designed to enhance cognitive development in children. The company's offerings focus on stimulating physical, sensory, social, and emotional growth through customized toys and developmentally tailored play services. By providing these resources, Peekaby aims to support parents in fostering their children's joyful and holistic development.

OPENEDGES Technology

Venture Round in 2023
OPENEDGES Technology researches AI acceleration technology to contribute to democratizing AI innovation. The company provides IP technology for smart computing, enabling Internet of Smart Things. The company provides IPs in two technology sectors of smart computing highly efficient AI acceleration and high-performance memory subsystem including DDR memory controller and on-chip interconnect IP. The company offers the needed boost to performance, efficiency, and reliability. OPENEDGES Technology was founded on 2015 and is headquartered in Seoul, Korea.

Onconic Therapeutics

Series B in 2022
Onconic Therapeutics is dedicated to the research and development of innovative cancer treatments. The company focuses on creating next-generation anti-cancer therapies that target the mechanisms involved in cancer cell growth and DNA damage repair. By simultaneously suppressing key signal delivery agents and repair enzymes, Onconic aims to provide healthcare professionals with effective therapeutic options for treating various cancers.

Vivo

Series A in 2022
Vivo is a creative group focused on producing engaging online content, particularly in the realms of comedy and music. Founded in 2015 by Eun-i Song and Sook-kim Kim, the company emerged from their desire to generate content that resonates with their personal interests after experiencing a lull in traditional broadcasting opportunities. Their initial project, a podcast titled "Secret Guaranteed," allowed them to establish a platform where they could share their unique perspectives and connect with audiences. Over time, Vivo has expanded its mission to create original comedic content and music, aiming to bring joy and laughter to viewers and listeners through innovative ideas and thoughtful planning. The company prioritizes fostering a sense of warmth and connection with its audience, ensuring that the content is enjoyable and relatable.

TissenBioFarm

Seed Round in 2022
TissenBioFarm is a food technology company focused on the mass production of cultured meat that features realistic texture and marbling. The company utilizes advanced 3D bioprinting technology to create not only cell-cultured meat but also artificial organs for transplantation, including liver, kidney, and skin. This innovative approach aids medical professionals in treating patients with various organ-related diseases while simultaneously advancing the field of cultured meat production.

Enerever

Series B in 2022
Enerever Battery Solution is a leading manufacturer in South Korea specializing in battery coating products and separators. The company produces eco-friendly materials for secondary batteries, focusing on water-based coatings that provide uniform thickness while preserving the integrity of individual particles. This innovative approach enables manufacturers in various sectors, including electric vehicles, mobile phones, and e-bicycles, to utilize efficient coating solutions for their battery production. Additionally, Enerever is the only comprehensive separator company in Korea, offering services that include fabric coating, slitting, and battery can manufacturing. Through its advanced technologies, Enerever plays a significant role in enhancing the performance and sustainability of battery materials.

CultureHero

Series B in 2021
CultureHero is a developer of a cooking application aimed at enhancing the cooking experience through lifestyle-oriented content. The application provides users with a variety of recipes, cooking tips, and table styling videos. It also recommends lifestyle products related to kitchen and household items. Additionally, CultureHero offers food boxes containing all the necessary ingredients, allowing users to prepare recipes tailored to different occasions. This holistic approach combines culinary guidance with practical resources to elevate home cooking.

Snorkel AI

Series C in 2021
Snorkel AI, Inc. is a company that develops a comprehensive machine-learning platform designed to facilitate the creation, management, and monitoring of AI applications. Its primary offering, Snorkel Flow, allows users to programmatically label and augment training data, manage and integrate various datasets, and deploy machine learning models, while also providing tools for data analysis and monitoring. The platform is particularly effective in extracting structured information from complex documents and forms, as well as ranking content based on relevance. Founded in 2016 and based in Palo Alto, California, Snorkel AI serves a diverse range of industries, including finance, government, telecommunications, insurance, healthcare, and e-commerce. The technology was developed at Stanford AI Lab and employs innovative methods such as weak supervision to enhance data preparation, thereby streamlining the AI development process for enterprises.

Future Kitchen

Seed Round in 2021
Future Kitchen is a robot kitchen platform that aims to revolutionize the food delivery industry through automation. The company has developed a system where robots handle all aspects of food production, from manufacturing to delivery, in collaboration with the self-driving delivery robot start-up Newbility. Future Kitchen focuses on creating a service that enhances efficiency while prioritizing environmental sustainability, allowing food creators to streamline their operations. The platform emphasizes a clean production process and aims to minimize pollution, providing a modern solution to food delivery challenges.

OpenExchange

Series D in 2021
OpenExchange, Inc., operating as OpenExchange Communications, is a provider of a meeting network tailored for the financial services sector. Founded in 2009 and headquartered in Lincoln, Massachusetts, with additional offices in Boston, New York, London, and Hong Kong, the company delivers a range of products designed to enhance communication within the investment community. Its offerings include OE Connect, OE Stream, OE Conference, and OE Learn, as well as OpenExchange Virtual, which facilitates virtual meetings through desktop videoconferencing technology that operates over any IP network. The platform allows users to create personal online profiles, schedule video meetings, and access a global directory of financial services professionals, thereby supporting investment managers, investment banks, and public companies in their interactions. OpenExchange's solutions aim to improve the efficiency and security of communications in the financial market.

The PlantEat

Series B in 2021
The PlantEat is a food-tech startup focused on creating and distributing a range of plant-based alternatives to traditional animal-based products. Established to tackle issues such as the over-dependence on animal diets and global nutrition disparities, The PlantEat uses functional plant ingredients and DNA analysis to develop a diverse product line that includes plant-based milk, crackers, ketchup, and eggless mayonnaise. The company's mission is to promote healthier eating habits and provide consumers with viable alternatives to meat, thereby supporting a balanced and nutritious lifestyle.

Allganize

Series A in 2021
Allganize, Inc. is a provider of AI-driven knowledge management solutions focused on enterprise workplace automation. Founded in 2017 and based in Pleasanton, California, the company specializes in natural language understanding and conversational AI. Its platform offers tools such as cognitive search, review analysis, sentiment insights, text classification, and keyword extraction, which help medium and large businesses automate workflows and optimize customer engagement. Allganize's technology allows businesses to gain insights into team activities and overarching work patterns, enabling them to leverage unstructured information effectively. By applying deep learning techniques, Allganize empowers organizations of various sizes to develop their own AI systems and services while enhancing business value through improved customer experiences.

Onegene Biotechnology

Series A in 2021
Onegene Biotechnology is a biotechnology company focused on developing innovative protein-based therapeutics aimed at treating cancer, metabolic, and inflammatory diseases. The company utilizes advanced protein conjugation technology, which involves the connection of separate proteins to create recombinant proteins through post-translational fusion. This approach enables the production of complex proteins with large molecular weights, facilitating the development of multispecific drugs that target multiple pathways simultaneously. Onegene's unique ability to combine various molecular types, including Fab fragments, scFv, sdAb, peptides, cytokines, and enzymes, allows for unprecedented design flexibility and optimized physical properties. Consequently, this innovation expands the potential for effective treatments for complex and multifactorial diseases, offering prolonged benefits for patients.

Superb AI

Series A in 2021
Superb AI is a comprehensive training data platform that automates data preparation, facilitating rapid and systematic dataset creation and management. Founded in 2018 by a team of data scientists, academics, and machine learning engineers, the company focuses on transforming how organizations label, manage, curate, and deliver training data. With a strong foundation in computer vision and deep learning, supported by extensive academic research and numerous publications, Superb AI enables businesses to streamline their AI projects. The platform includes features for data annotation, curation, model training, and deployment, allowing companies to develop and implement computer vision applications more efficiently.

AffyXell Therapeutics

Series A in 2021
AffyXell Therapeutics, established in January 2020 as a joint venture between Avacta and Daewoong, focuses on the development of innovative mesenchymal stem cell (MSC) therapies. The company aims to create next-generation cell and gene therapies specifically designed to treat inflammatory and autoimmune diseases, as well as to prevent organ transplant rejection. By harnessing the therapeutic potential of MSCs, AffyXell seeks to provide health professionals with effective treatment options for a range of challenging medical conditions.

B:eat Corp

Series A in 2021
B: eat is a retail automation platform intended to run a robot-based cafe.

JungggleX

Series A in 2020
JungggleX is an advertising platform.

H2O Hospitality

Series B in 2020
H2O Hospitality, Ltd. is a leading hospitality management company operating in South Korea and Japan, specializing in hotel and vacation rental management services. Established in 2015 and based in Seoul, the company leverages technology to automate operational processes, significantly reducing fixed costs and enhancing efficiency. H2O Hospitality offers a comprehensive range of services, including profit management, housekeeping and facility management, customer call response, online marketing, and reservation management. Its proprietary property management system (PMS) enables seamless coordination between guests, accommodations, and housekeeping, facilitating smoother operations without the need for on-site staff. This innovative approach allows H2O to optimize customer attraction and streamline reservation management, thereby supporting property owners in effectively managing their rental facilities.

TimeTree

Venture Round in 2019
TimeTree, Inc. is a company based in Shinjuku, Japan, founded in 2014. It specializes in developing a calendar-sharing application that facilitates the organization of schedules for families and groups. The application allows users to share calendars, events, and messages, enabling seamless coordination among family members, friends, partners, and colleagues. By offering features such as multiple calendars and the ability to post schedule messages and photos, TimeTree helps users manage their busy lives and collaborate effectively, accommodating events according to their interests and availability.

Skelter Labs

Series B in 2019
Skelter Labs Inc., founded in 2015 and based in Seoul, South Korea, specializes in the development of artificial intelligence applications aimed at enhancing user experiences across various sectors. The company focuses on machine and deep learning technologies to create personalized solutions for e-commerce, content, communities, and messaging platforms. Skelter Labs offers a range of products, including BELLA QNA, an enterprise chatbot for data and large language model queries, BELLA LLM, a dedicated large language model for enterprise applications, and AIQ+ Chat, a task-oriented chatbot builder. Additionally, the company provides AIQ+ Speech for speech-to-text and text-to-speech solutions, as well as AIQ+ Answer, a machine reading comprehension search assistant. By combining advanced technology with industry expertise, Skelter Labs aims to drive digital transformation and support businesses in leveraging the full potential of AI.

CoHive

Series B in 2019
CoHive is Indonesia's largest coworking space provider, previously known as EV Hive. The company offers a blend of coworking, coliving, coretail, and event space solutions aimed at fostering a cohesive working and living environment. With a mission to build a robust community, CoHive connects and supports startups and small to medium enterprises (SMEs) across Indonesia. The company operates approximately 33 locations in major cities including Jakarta, Medan, Yogyakarta, and Bali, catering to around 9,000 members, predominantly startups and SMEs. CoHive also provides facilities for retail spaces, allowing businesses to showcase their products within a vibrant startup community. The company's headquarters is located in Jakarta, and its leadership team includes co-founders Jason Lee and Ethan Choi, along with COO Erich Hirawan and CRO Iris Wee.

Sentbe

Series B in 2019
Founded in 2015, SentBe is a global foreign exchange solutions provider specializing in remittance and payment services for both individuals and businesses. The company aims to create a world without financial borders by offering innovative cross-border payment solutions that enhance the competitiveness of its clients. SentBe operates an online remittance platform that enables efficient money transfers worldwide, focusing on international non-cent transfers by leveraging price differences between Bitcoin exchanges across countries. With extensive global partnerships and strong foreign exchange management capabilities, SentBe delivers a robust infrastructure that adheres to global standards, facilitating seamless financial transactions for its users.

Socar

Series D in 2019
Socar Inc. is a car sharing company based in Jeju-si, South Korea, specializing in eco-friendly vehicle rental services. Founded in March 2012, Socar enables users to book cars for personal use through its website and smartphone applications. The platform facilitates a community-driven approach, allowing travelers to share vehicles with others on similar routes. With over 1.7 million registered users, the service sees approximately 80,000 transactions each month, translating to a car booking every 30 seconds. Socar's innovative model has positioned it as a leading player in the Korean car sharing market.

The PlantEat

Series A in 2019
The PlantEat is a food-tech startup focused on creating and distributing a range of plant-based alternatives to traditional animal-based products. Established to tackle issues such as the over-dependence on animal diets and global nutrition disparities, The PlantEat uses functional plant ingredients and DNA analysis to develop a diverse product line that includes plant-based milk, crackers, ketchup, and eggless mayonnaise. The company's mission is to promote healthier eating habits and provide consumers with viable alternatives to meat, thereby supporting a balanced and nutritious lifestyle.

Madup

Series B in 2019
Madup specializes in mobile app marketing services, focusing on optimizing advertising efficiency for startups and small to medium-sized businesses. The company provides a range of services, including app marketing consulting, platform management, and advertisement planning. Utilizing data from tracking tools, Madup implements various marketing strategies such as reward marketing, cost-per-install (CPI), cost-per-action (CPA), and cost-per-thousand impressions (CPM) to enhance the effectiveness of clients' advertising efforts. By collaborating with major companies across diverse sectors, including commerce, real estate, and education, Madup aims to address the digital marketing challenges faced by its clients. The company is committed to employing innovative, ad tech-based performance marketing techniques to maximize the marketing value for its clients, while continually adapting to trends and revenue models in the mobile app market.

17Live

Venture Round in 2018
17LIVE Inc. is a live streaming platform that operates primarily in Taiwan, Japan, South Korea, Singapore, and Hong Kong. Founded in 2015 and headquartered in New Taipei City, Taiwan, the company offers its live streaming services under the 17 Media brand. Additionally, it provides online dating services through its Paktor and Goodnight brands. The platform enables users to share their life experiences and talents in real-time, fostering social connections and community engagement. 17LIVE aims to facilitate instant audio and video communication, allowing users to connect with others globally, regardless of their location. The company, which was formerly known as M17 Entertainment Limited, rebranded to 17LIVE Inc. in October 2020.

Skelter Labs

Series A in 2018
Skelter Labs Inc., founded in 2015 and based in Seoul, South Korea, specializes in the development of artificial intelligence applications aimed at enhancing user experiences across various sectors. The company focuses on machine and deep learning technologies to create personalized solutions for e-commerce, content, communities, and messaging platforms. Skelter Labs offers a range of products, including BELLA QNA, an enterprise chatbot for data and large language model queries, BELLA LLM, a dedicated large language model for enterprise applications, and AIQ+ Chat, a task-oriented chatbot builder. Additionally, the company provides AIQ+ Speech for speech-to-text and text-to-speech solutions, as well as AIQ+ Answer, a machine reading comprehension search assistant. By combining advanced technology with industry expertise, Skelter Labs aims to drive digital transformation and support businesses in leveraging the full potential of AI.

Feldan Therapeutics

Series A in 2018
Feldan Therapeutics is a biopharmaceutical company focused on developing innovative treatments using its proprietary peptide-based technology platform, known as the Feldan Shuttle. This platform facilitates fast and safe intracellular delivery, allowing access to cellular components that are typically unreachable by conventional drugs. By leveraging the unique characteristics of the Feldan Shuttle, the company aims to create a new generation of therapeutic applications, as evidenced by its ongoing pipeline of clinical programs. Feldan Therapeutics is committed to advancing the field of intracellular therapeutics to improve patient outcomes.

Dable

Series B in 2018
Dable, Inc. is an online content discovery platform based in Seoul, South Korea, founded in 2015. The company specializes in providing personalized content recommendation solutions and native advertising services, utilizing big data to enhance user engagement and optimize content strategies. Dable has established partnerships with over 3,000 premium media outlets across Asia, generating more than 5 billion monthly pageviews. It is recognized as the most utilized personalized recommendation platform in Indonesia, Vietnam, and Korea, with significant growth in Taiwan and Malaysia. Dable has demonstrated consistent annual sales growth of over 50% since its inception and was ranked 46th among the top 500 Asia-Pacific High-Growth Companies by the Financial Times, achieving the highest position in the media category.
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