About
Who Is YEJIN Inc.?
YEJIN Inc. is an AI specialist company built on AI Orchestration and Multi-Brain technology, connecting, comparing, and validating diverse AI models so that individuals and enterprises can use AI with greater reliability.
About
Our Core Capabilities
YEJIN Inc. develops artificial intelligence that solves the real problems of people and businesses, guided by a management philosophy of humanistic information technology.
Built around our proprietary integrated AI platform ZeliAi, we deliver AI information retrieval, an AI aggregator, Multi-Brain Cross-Model Validation, domain-specific AI agents, and custom AI solutions for enterprises and public institutions.
Moving beyond the limits of relying on a single AI model, YEJIN connects and validates diverse AI systems and data for each purpose, building a more accurate and trustworthy environment for putting AI to work.
For enterprises and institutions where security is critical, we build on-premises and private AI environments and provide integrated support across the entire process, from planning and development to infrastructure and operations.
Through continued research, development, and technological advancement, we will strengthen Korea's AI competitiveness and technological sovereignty and build a future in which anyone can use artificial intelligence safely and conveniently.
Vision
With artificial intelligence centered on people, we create a world where everyone benefits from technology. YEJIN will develop AI not as a tool for a select group of experts, but as a universal technology that individuals, businesses, and society can all use easily and safely.
Mission
With technology that connects, compares, and validates AI, we build a more trustworthy environment for using artificial intelligence. Through AI Orchestration, Multi-Brain Cross-Model Validation, semantic search, and specialized AI agents, we solve our customers' problems in practical ways and strengthen Korea's AI competitiveness and technological sovereignty.
Values
Core Values
Connection · Trust · Innovation · Scalability · People
Connection
We link model to model, people to AI, and data to work.
Trust
We uphold the principle that an unverified answer is no answer.
Innovation
At the frontier of technology, we keep experimenting toward better methods.
Scale
We grow together, from personal tools to organizational infrastructure.
People
In the end, AI exists for people's work and lives.
Leadership
CEO Message
We will build artificial intelligence that goes beyond technology to serve people.
Hello. I am Ko Jonghyun, CEO of YEJIN Inc.
Guided by a management philosophy of humanistic information technology, YEJIN Inc. develops artificial intelligence that anyone can use easily and safely.
YEJIN's integrated AI platform, ZeliAi, aims to connect diverse AI models in a single environment and, through cross-model validation across multiple AI systems, to deliver more accurate and reliable results. With domain-specific AI agents and secure enterprise solutions, we provide practical support for our customers' work and decision-making.
YEJIN measures the value of technology not by flashy features, but by how accurately it solves the problems of people and businesses. We will build an environment in which no one is left behind by AI technology, including older adults, people with disabilities, small and medium-sized enterprises, and small business owners.
So that Korea's AI technology secures competitiveness in the global market and we build sovereignty over our own AI ecosystem, YEJIN Inc. will continue its bold challenge.
Technology for people, artificial intelligence you can trust,
and a company that builds a better future.
Thank you.
Ko Jonghyun, CEO
History
History
2026
- January — Selected as an NVIDIA Inception startup partner
- January — Approved in the second round of Microsoft Founders Hub
- March — Third paid-in capital increase of KRW 150 million (capital of KRW 750 million as of April 2026)
- April — Patent registered No. 10-2951428 (Method of Integrated Use of Multiple Artificial Intelligence Models)
- April — Obtained Industrial Intelligence Certification B3 (Scale-Up Type) from the Korea Artificial Intelligence Certification Center (KORAIA-CC) (KORAIA-CC-2604002)
2025
- February — Purchased the site for the corporate research institute and broke ground (completion expected June 2026)
- May — Patent application: Method of Integrating Multiple Artificial Intelligence Models for the Digitally Underserved (10-2025-0059028)
- May — Patent application: Search Method Using an Integrated Artificial Intelligence Model (10-2025-0059019)
- June — Broke ground on the new AI Advanced Research Center, expanding research infrastructure (completion expected June 2026)
- September — Registered the ZELIAI · 젤리아이 trademark (Class 38)
- October — Launched the open beta of the integrated AI portal ZeliAi
- October — Registered the ZELIAI · 젤리아이 trademark (Class 42)
- November — Held regular AI Curriculum Research Group sessions (general-purpose AI agent research · barrier-free AI kiosk)
2024
- April — Established YEJIN Inc. (headquarters: Songpa-gu, Seoul; capital of KRW 250 million)
- September — First paid-in capital increase of KRW 350 million (second round of KRW 600 million in 2025)
- September — Filed a PCT international patent application (PCT/KR2024/014678)
- September — Recognized as a Corporate R&D Center
- September — Certified as a Women-Owned Business
- October — Registered SW copyrights: two backend modules of the AI Multi-Model Orchestration Engine
- November — Certified as a Venture Business (Innovation-Growth Type)
- December — Registered as an Industrial Design Specialist Company and obtained a Certificate of Direct Production (CG)
Achievements
Certifications & Achievements
Through continued research and development, YEJIN has systematically built AI technical capabilities and proprietary technology assets. With patents, software copyrights, and major enterprise certifications, our innovation, expertise, and ability to deliver projects have been officially recognized. Built on proven technical strength and trust, we are growing into a specialized AI company that enterprises and public institutions can choose with confidence.
CertifiedESG Self-Assessment Confirmation
Korea SMEs and Startups Agency
April 20, 2026
CertifiedAI+X Industrial Intelligence Certification
KORAIA-CC B3 · Scale-Up Type
April 17, 2026
CertifiedStartup Business Confirmation
April 16, 2026
CertifiedRegistered Patent
Method for the Integrated Use of Multiple AI Models · Patent No. 10-2951428
April 7, 2026
CertifiedSME Confirmation
April 4, 2026
- Member
NVIDIA Inception Program
January 2026
- Approved
Microsoft for Startups Founders Hub
Second-Stage Approval
January 2026
RegisteredZELIAI Trademark Registration
Class 42
October 20, 2025
Registered젤리아이 Trademark Registration
Class 42
October 20, 2025
RegisteredZELIAI Trademark Registration
Class 38
September 18, 2025
Registered젤리아이 Trademark Registration
Class 38
September 18, 2025
CertifiedCertificate of Direct Production
Engineering Research and Technology-Based Services
September 1, 2025
Patent PendingPatent Application
Method for Integrating Multiple AI Models for Digitally Underserved Users
May 7, 2025
Patent PendingPatent Application
Search Method Using an Integrated AI Model
May 7, 2025
CertifiedCertificate of Direct Production
Editorial Design, Graphic Design, and Art-Related Services
December 26, 2024
RegisteredIndustrial Design Specialist Company Registration
December 4, 2024
CertifiedVenture Business Certification
Innovation-Growth Type
November 5, 2024
RegisteredCopyright Registration
AI Portal Backend Code 2
October 16, 2024
RegisteredCopyright Registration
AI Portal Backend Code 1
October 7, 2024
Patent PendingPCT International Patent Application
PCT/KR2024/014678
September 26, 2024
CertifiedWomen-Owned Business Certification
September 10, 2024
CertifiedCorporate R&D Center Certification
September 9, 2024
Frequently Asked Questions
YEJIN is a specialized AI company that runs both the integrated AI platform ZeliAi (B2C) and the development of AI solutions for enterprises and public institutions (B2B).
We take the AI Orchestration technology proven through operating ZeliAi and deliver it in a build-to-order form tailored to enterprise and public-institution environments.
Select a partnership inquiry type on the Contact page and submit it, and our team will get in touch.
Ready to Get Started with YEJIN?
We welcome inquiries about enterprise AI adoption, partnerships, and investment opportunities.