PrepMaster Inc. · Est. 2023 · Seoul & London

PREPMASTER

AI-Powered High-End EduTech · Seoul, Korea & London, UK

🏆 Venture-Certified '26.03Women-Owned Business '24.09🔬 Corporate R&D Lab '24.06
Company Overview

PrepMaster Inc. is a Seoul-based AI-powered EduTech venture founded in 2023, specializing in high-stakes boarding school admissions intelligence. Leveraging 23 years of domain expertise in elite boarding school admissions, we have developed a proprietary 55-Logic Taxonomy and 75-Trap Matrix deployed as dual-constraint conditions within a 4-Layer AI generation and validation pipeline.

Our technology automates the creation and verification of premium reasoning content at a quality level no general-purpose LLM can replicate — targeting the global high-stakes assessment market that remains untapped by Big Tech.

“

PrepMaster's mission is not to replace subject-matter experts with AI, but to transform 23 years of tacit domain knowledge into formalized AI-readable logic — realizing a human–AI collaboration model where both grow together.

Company Information
Korea
PrepMaster Inc.
Business Reg. No. 154-87-03080
874 Eonju-ro, 8F, Gangnam-gu, Seoul
UK Subsidiary
PREPMASTER LTD
71-75 Shelton Street, Covent Garden, London WC2H 9JQ
Company No. 16991740
Company History
2026

🏆 Venture Enterprise Certification

MarCertified as Venture Enterprise by Korean government
FebRegistered 4 book copyrights (Korea Copyright Commission)
JanEstablished UK subsidiary: PREPMASTER LTD (London)
2025

Admission Data Infrastructure · Strategic Partnerships

NovPartnership with U.S. boarding school advisors for curriculum content & admissions trends
OctBuilt proprietary admission score prediction system
JunLaunched admission data analytics platform
2024

Corporate R&D Lab · Women-Owned Business

DecCompleted 11-volume textbook series · AI training dataset
OctRegistered as Amazon Global Seller
SepCertified as Women-Owned Business
AugTrademarked 'PrepMaster' brand
JunRecognized as Corporate R&D Lab (KOITA)
AprBeta development: score prediction & error tagging system
2023

PrepMaster Inc. Founded

MarLaunched global EduTech brand 'PrepMaster'
2022

Selected for KOSME Online Export Platform

NovLaunched SSATKorea.com
Core Product
Flagship Platform

PairUp! — AI Socratic Scaffolding Platform

An adaptive reasoning-correction platform that diagnoses errors in real time using the 75-Trap Matrix, then delivers a three-stage Socratic hint sequence (retrieval cue → logic reconstruction → metacognitive reinforcement), guiding learners to rebuild their own reasoning structures. Designed for SAT, GRE, GMAT, and LSAT.

55-Logic Taxonomy75-Trap Matrix4-Layer AI EngineConstrained GenerationSocratic Scaffolding
Performance Targets

90%

Structural Error Detection Rate

70%+

Expert Review Pass Rate

85%

Content Production Automation Rate

Start a Conversation / 컨설팅 상담 문의

Let's Talk About
Your Student's Future

Whether you're exploring boarding school options, need essay guidance, or want a comprehensive admissions strategy — our Seoul and London-based team brings decades of expertise to your family's journey.

Seoul HQ: 874 Eonju-ro, 8F, Gangnam-gu
London Office: 71-75 Shelton Street, Covent Garden
Response within 2 business days

All inquiries are confidential. We work with families worldwide — Korea, China, Southeast Asia, Europe, and North America.

Max 500 characters

We respect your privacy. Your information is confidential and will never be shared.