Atinum Partners
VC Fund
Seoul, South Korea
Atinum Partners is a venture capital firm that invests in the growth stage startups in the IT, biotech, and healthcare sectors.
- Total investments:
- 191
- Last investment:
- Lead investor:
- 26%
- Fund size:
- $596M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Atinum Partners invests in
Stages Atinum Partners invests in
Countries Atinum Partners invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 6 contacts → | |||
Round size
- Series A
- $3M–$24M
- Series B
- $5.8M–$29M
- Series C
- $12M–$40M
Investment Focus
Industry
- Software 19 (10%)
- Biotechnology 18 (9%)
- Artificial Intelligence 17 (9%)
- Health Care 15 (8%)
- Information Technology 15 (8%)
Stage
- Series A 50 (26%)
- Series B 47 (25%)
- Series C 30 (16%)
- Seed 15 (8%)
- Venture - Series Unknown 9 (5%)
Country
- South Korea 92 (48%)
- United States 19 (10%)
- Singapore 4 (2%)
- Japan 2 (1%)
- Israel 2 (1%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Cheuk Kim
chief managing director; Founder & Chief Managing Director
|
chief managing director; Founder & Chief Managing Director | Total investments: 4 | Find email | |
|
Jaemyung Lee
Director
|
Director | Total investments: 2 | Find email | |
|
Je-Wook Kim
Senior Managing Director
|
Senior Managing Director | Total investments: 18 | Find email | |
|
Ki Chun Shin
VP & CEO
|
VP & CEO | Total investments: 0 | Find email | |
|
Park Chan-hoon
Chief
|
Chief | Total investments: 3 | Find email | |
| See all 6 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Liner
|
LINER is Asia’s first AI Agent that helps users accomplish more with less time and effort “AI Workspace”, known as the autonomous agent, performs various and complex tasks requested by users using LLM-based AI, differentiated by LINER’s highlighter database. More than 94% of LINER's users are from outside Korea & more than 100 countries.We are reducing our customer’s research time from hundreds of minutes to tens of seconds every day with our product. | $36.1M / Series C / Aug 25, 2026 | |
Modhaus
|
Modhaus is an open architecture K-Pop agency dedicated to leading the global music industry. The firm is committed to establishing a fan-centered entertainment system. It strives to work diligently to ensure that our fans are involved in significant stages of production through encouragement and proactive communication. The company focuses oncontent and entertainment that encourages fan participation. | $7M / Series B / Aug 05, 2026 | |
AB180
|
AB180 is a marketing technology company that develops software for app growth, user acquisition, engagement, attribution, and monetization. The company provides a full-stack AI platform that helps businesses measure marketing performance, optimize customer acquisition, improve user retention, and maximize revenue across mobile apps, games, anddigital services. Its product portfolio includes Airbridge, a mobile measurement partner (MMP) and attribution platform; DeepLink Plan, a deep linking and user journey optimization solution; and Airflux, an AI-powered monetization platform for mobile games. Together, these products enable businesses to measure cross-platform marketing performance, predict customer lifetime value (LTV), detect ad fraud, automate in-app advertising and purchase optimization, and deliver personalized user experiences.AB180 also provides AI-driven analytics, customer engagement, and marketing automation solutions that integrate with enterprise platforms and advertising ecosystems. Its technologies leverage machine learning to optimize marketing campaigns, improve conversion rates, automate monetization experiments, and generate actionable insights from user behavior. In addition to its proprietary products, the company is a strategic implementation and consulting partner for platforms such as Amplitude and Braze, helping organizations deploy and optimize data-driven growth strategies. | $13.7M / Series C / Jul 01, 2026 | |
Byte Lab
|
Byte Lab prioritizes achieving long-term results by concentrating on *how* we grew rather than just growing quickly. | $6.6M / Venture - Series Unknown / May 19, 2026 | |
Mustbio
|
MustBio is a biotechnology company that leverages multi-antibody technology to develop therapeutics primarily in the field of immuno-oncology. The company was founded in 2021 and is based in Seoul, South Korea. | $23.3M / Series C / Mar 13, 2026 | |
G2GBIO
|
G2GBIO operates to supply good medicines to patients all over the world and practice. | $52.5M / Post-IPO Debt / Feb 25, 2026 | |
BOS Semiconductors
|
BOS Semiconductors is a fabless semiconductor firm specializing in automotive-grade System-on-Chip (SoC) solutions and high-performance computing platforms. Its technologies support advanced driver assistance, autonomous driving, and centralized in-vehicle computing systems. | $60.3M / Series A / Feb 23, 2026 | |
RideFlux
|
RideFlux is a self-driving software company for safe and reliable autonomous transporation service. Since our foundation in 2018, we hope for a better world where everyone can be safer and more comfortable while moving with our self-driving cars and software. We believe in the potential that self-driving technology embraces, how driving canbecome an innovative experience not a mere stress, which inspires us to build up its future with every step on our way.Our headquarter is located in Jeju island, one of the best test-beds in the world for developing reliable AD software technologies. It has a variety of road environments and various weather conditions across the island (1850 square kilometers), and significantly high demands for mobility service (16 million visitors a year without bring own vehicles). We are strategically located for technology enhancement for reliable urban autonomy. For the Safety, Beyond the Safety. | $13.9M / Dec 29, 2025 | |
Holiday Robotics
|
Holiday Robotics is a robotics company that specializes in the development and commercialization of humanoid robots with sophisticated robotic hands. | $102.1M / Series A / Dec 08, 2025 | |
Sionic AI
|
Sionic AI develops AI-native solutions and platforms for enterprises. The company provides customized AI platforms that enable organizations to build, deploy, manage, and optimize AI agents tailored to their business processes, knowledge, and rules. Its STORM Platform provides a no-code environment for creating enterprise AI agents, withcapabilities for retrieval-augmented generation, data parsing, workflow automation, document processing, and integration with existing business systems. The platform supports major large language models and can be deployed through SaaS, private cloud, or on-premises environments, with enterprise security and access controls. Sionic AI serves organizations across industries including finance, logistics, manufacturing, media, and other enterprise sectors. | $17M / Series A / Dec 01, 2025 | |
| See all 191 investments → | |||
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FAQ
What does Atinum Partners invest in?
Atinum Partners invests primarily in Software, Biotechnology and Artificial Intelligence startups, most often at Series A and Series B stage. Most of the 191 investments tracked by Shizune back companies in South Korea. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Atinum Partners's check size?
Atinum Partners typically joins rounds of $3M–$24M at Series A, $5.8M–$29M at Series B and $12M–$40M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Atinum Partners participates in.
How do I contact Atinum Partners?
Public channels for Atinum Partners include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Atinum Partners?
The team at Atinum Partners includes Cheuk Kim (chief managing director; Founder & Chief Managing Director), Jaemyung Lee (Director) and Je-Wook Kim (Senior Managing Director), among 6 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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