SelectStar
Category: AI Infrastructure
AI data and reliability verification platform that provides high-quality training data construction and AI model evaluation services SelectStar was founded in 2018. The company is led by Kim Se-yeop. Based in Daejeon, South Korea. Team size: 50+. Total funding raised: $29.6 million (43.4 billion KRW). Latest round: Series B extension (December 2025). Key investors include Samsung Life Insurance, KB Investment, Shinhan Venture Investment, K Cube Ventures, LB Investment.
- Founded
- 2018
- Headquarters
- Daejeon, South Korea
- Team size
- 50+
- Total funding
- $29.6 million (43.4 billion KRW)
Value proposition
Automates AI data construction and reliability verification, enabling organizations to build trustworthy AI models at scale with high-quality training data
Products and solutions
DatumoEval (LLM reliability verification platform), Datumo Life Balance (AI service monitoring), AI data construction services, Dataset Store with pre-built datasets, AI Red Team services, Data annotation and labeling services
Unique value
Specialized in AI reliability verification and data-centric AI solutions with strong partnerships in Korea's financial and enterprise sectors; crowdsourced data collection platform with over 250K contributors
Target customer
Enterprises in finance, healthcare, retail, and technology sectors requiring AI-driven data governance and model reliability verification
Industries served
Financial Services, Healthcare, Retail, Technology, Government, Manufacturing
Technology advantage
Proprietary AI reliability verification technology that can capture AI hallucinations and evaluate LLM performance; automated data construction platform with quality assurance workflows
How they differentiate
SelectStar specializes in AI reliability verification and data-centric AI solutions with strong partnerships in Korea's enterprise sector, emphasizing automated data construction and governance frameworks tailored for AI adoption
Main competitors
Scale AI, Labelbox, Snorkel AI, Appen
Key partnerships
Samsung Life Insurance, SK Telecom, KB Financial Group, Korean Financial Institutions Consortium, Major Korean conglomerates (Samsung, LG, SK)
Notable customers
Samsung Group, SK Telecom, LG CNS, KB Financial Group, Shinhan Bank, Korean government agencies
Major milestones
Series B funding (5.5 billion KRW) in December 2025, Selected for KB Starters program, Featured in Forbes Korea 'Korea AI 50', Selected for Korea's national AI foundation model project, Built partnerships with Korea's top conglomerates and financial institutions, Over 200 million data works completed
Growth metrics
Over 200 million data works completed with more than 320 companies; selected for Forbes Korea 'Korea AI 50'; participating in Korea's national AI foundation model project
Market positioning
Positioned as a leading AI data infrastructure provider in South Korea, focusing on enterprise and financial sector applications with emphasis on AI model reliability verification
Geographic focus
Primarily South Korea with expanding partnerships in Asian markets; strong presence in Korea's financial and enterprise sectors
Patents and IP
No publicly disclosed patents; holds multiple trade secrets in automated data profiling and AI reliability verification algorithms
About Kim Se-yeop
Former AI researcher at Korea's Agency for Defense Development (ADD); KAIST Electrical Engineering graduate; co-founded SelectStar while still in university to solve AI data collection challenges; named in Forbes Asia's '30 Leaders Under 30' in 2021
Official website: https://selectstar.ai