Open Sky

What Open Sky does

Open Sky (legal entity: (주)오픈스카이에듀) is a South Korean education services company founded in 2020 that operates a B2B2C school mentoring and college admission consulting business. The company delivers customized career guidance and university admission programs to middle schools, high schools, youth foundations, and city governments across Gyeonggi Province, primarily through its two co-branded platforms: Open Sky (university admission mentoring) and Dreaming School (school mentoring). The core service involves deploying verified current university student mentors — selected from a pool of 1,200+ candidates from top Korean universities including Seoul National University and Korea University — to deliver on-site, custom-developed curricula across six areas: learning, projects, reading, school life/admission, field exploration, and major exploration. Program design and quality control are led by certified former high school teachers on the founding team, including CEO Yoon Young-jun who brings 12 years of high school teaching experience.

The company has scaled its school engagements from 9 schools with 12 programs in 2020 to 470 schools with 1,009 programs in 2025, a roughly 50x expansion over five years, with cumulative program operations exceeding 1,600. Its technology stack is essentially human-delivered professional services rather than a software platform: the "technology" consists of six copyrighted curricula (four Open Sky programs and two Dreaming School programs registered for copyright), custom school-specific PPTs prepared by each mentor per session, and a quarterly mentor training system covering admissions trend updates. The company holds a Korean hagwon (private academy) operating license (#6593) issued by the Gyeonggi-do Seongnam Office of Education, providing regulatory legitimacy for in-person youth education services.

Open Sky generates revenue primarily through B2B contracts with schools, city governments, and youth foundations, with programs custom-priced and quoted per engagement rather than via a public price list. The GTM motion is field sales-led enterprise, where the company pitches curriculum and deployment plans directly to school administrators and public-sector education offices; the website also offers a self-serve consultation booking tool for parents and individual students seeking school-life management mentoring, pre-high school mentoring, subject tutoring, college admission consulting, and self-introduction letter/interview preparation. Pricing is not publicly disclosed, but the model resembles professional services rather than SaaS, with revenue tied to delivered program volume and contract wins rather than seats or subscriptions.

Name

Open Sky

Legal name

(주)오픈스카이에듀

Website

https://opensky.kr

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Open Sky (오픈스카이) is a South Korean education services company founded in 2020 that delivers B2B2C career guidance and college admission mentoring programs to schools, youth foundations, and city governments across Gyeonggi Province, deploying 1,200+ verified top-university student mentors to deliver custom curricula.

Ownership category

akta.pro rank

Product category

Education Consulting Services

NAICS

Educational Support Services (611710), Educational Support Services (61171), Educational Support Services (6117)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Student Mentoring & Peer Support Programs (EDAJALAL)

akta.pro secondary industry

Research, Capstone & Extended Essay Mentoring (IB EE, independent research) (EDANAKAH)

Keywords

• College admission consulting
• Career guidance programs
• School mentoring services
• Education consulting
• Subject tutoring

Headquarters

HQ city

Seongnam

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. School Mentoring Programs: Revenue generated from providing career guidance and college admission mentoring programs to schools and educational institutions. Programs include learning guidance, project-based learning, reading programs, school life management, department exploration, and major exploration areas. Schools receive customized curriculum, on-site mentor deployment, and satisfaction surveys.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Open Sky delivers career guidance and college admission mentoring programs to middle and high schools through two proprietary platforms — Open Sky (오픈스카이) for university entrance mentoring and Dreaming School (드리밍스쿨) for school life mentoring. Programs are custom-designed for each school, taught on-site by 1,200+ verified top university student mentors under the supervision of experienced former teachers, covering six curriculum areas: learning, projects, reading, school life and admission, field exploration, and major exploration.

Product overview

Open Sky operates as a dual-platform education technology company offering school mentoring and career guidance programs. The core offerings consist of the 오픈스카이 (Open Sky) university entrance mentoring platform and 드리밍스쿨 (Dreaming School) school mentoring platform, both providing curriculum-based programs across six areas: learning, projects, reading, school life and admission, field exploration, and major exploration. Programs are delivered by verified university student mentors under the supervision of experienced teachers.

Differentiator

Problem solved

Functional benefit

Brands

• 드리밍스쿨 (Dreaming School): School mentoring platform launched in 2020, offering school-customized career and admission programs
• 오픈스카이 (Open Sky)

Products and services

• Dreaming School (드리밍스쿨) School Mentoring Platform A school mentoring platform for middle and high school students offering career exploration, academic life management, and college admission preparation programs delivered by verified university student mentors on-site at partner schools.
• Open Sky (오픈스카이) University Entrance Mentoring Platform A university entrance mentoring platform connecting students with current teachers and university student mentors for personalized career and college admission guidance through custom-tailored programs.
• Learning Area (학습 영역) Curriculum Program Curriculum program covering self-directed learning, subject-specific study methods, mock exam study strategies, and study planner development for middle and high school students.
• Project Area (프로젝트 영역) Curriculum Program Project-based program including topic research, mock entrepreneurship simulation, and community project activities to develop students' exploration and research capabilities.
• Reading Area (독서 영역) Curriculum Program Reading program featuring book discussions, reading comprehension guidance, and book-friendly activities designed to develop deep reading skills and critical thinking in students.
• School Life & Admission Area (학교생활 및 입시 영역) Curriculum Program Program covering high school credit system guidance, university admission strategies, student record management, self-introduction letter preparation, interview preparation, and academic life planning.
• Field Exploration Area (계열 탐색 영역) Curriculum Program Program helping students explore academic fields and tracks (humanities/social sciences, natural sciences/engineering) with detailed major information and career guidance delivered by current university students.
• Major Exploration Area (전공 탐색 영역) Curriculum Program Program allowing students to learn directly from current university students about specific majors, including department introductions, curriculum details, and university preparation tips.

Quantifiable outcome

• 470 schools served with 1,009 programs in 2025 academic year
• +1 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eleven partnerships are on record, tiered core, minor and major.

• Korea Academic Information (한국학술정보원)coreStrategic or Co-development Partner · 1 January 2022Selected for Korea Academic Information's non-face-to-face startup support program in 2022, providing business development support and validation.
• Seoul National University (서울대학교)minorStrategic or Co-development PartnerPartner university for recruiting verified top university student mentors. Listed as partner institution on company website.
• Korea University (고려대학교)minorStrategic or Co-development PartnerPartner university for recruiting verified top university student mentors. Listed as partner institution on company website.
• Gwangmyung Youth Foundation (광명시청소년재단)majorChannel Partner/ Reseller/ DistributorLong-term partner for career guidance programs. Conducted 2023 'Finding Your Path' department exploration program and ongoing program operations.
• Yongin Future Education Center (용인시미래교육센터)majorChannel Partner/ Reseller/ DistributorAnnual partner for youth job blog programs. Conducted 2023, 2024, and 2025 youth job blog programs.
• Seongnam Youth Foundation (성남시 청소년재단)majorChannel Partner/ Reseller/ DistributorKey partner for annual college admission fairs. Conducted 2023 and 2024 Seongnam College Admission (수시) fairs and 2025 Seongnam Education Office high school fair.
• Namyangju City (남양주시)majorChannel Partner/ Reseller/ DistributorPartner for middle school career education programs and open school mentoring programs. Conducted 2024 middle school career education and 2025 open school mentoring.
• Suwon Youth Foundation (수원시청소년청년재단)majorChannel Partner/ Reseller/ DistributorPartner for youth hope lighthouse programs and future-opening university student department mentoring.
• Anyang Human Resources Creative Foundation (안양시 인재육성창의재단)majorChannel Partner/ Reseller/ DistributorPartner for major fairs and career festivals. Conducted 2025 major fair and career festival programs.
• Anseong Future Education Support Center (안성시 미래교육지원센터)minorChannel Partner/ Reseller/ DistributorPartner for mobile career guidance program. Conducted 2025 Anseong visiting career guidance program.
• Paju City (파주시)minorChannel Partner/ Reseller/ DistributorPartner for university admission fair. Conducted 2026 academic year university admission fair.

Scale indicators3 records

Expansion highlights5 records

Broad incumbents

• Megastudy (메가스터디): One of South Korea's largest private education companies, offering online and offline college-prep, K–12 tutoring, and admission consulting content. Comparable because it competes for the same Korean student pool and school-channel opportunities as Open Sky, but operates at much larger scale across many categories.
• Daekyo (대교) / Noonnoppi (눈높이): Major Korean education conglomerate offering K–12 tutoring franchises, textbooks, and digital learning content. Comparable to Open Sky as a broad incumbent in the K–12 tutoring and learning market, with much greater brand recognition and content resources.
• EBS (Educational Broadcasting System): Korea's public educational broadcaster providing free K–12 curriculum content, including college admission prep. Comparable as a widely-used Korean education resource serving similar student demographics, and a potential substitute/competitor for Open Sky's school-based content.

Direct peers

• Jinhak (진학사): South Korea's leading college-admissions information and consulting platform, offering admission data, consulting services, and high-school career content. Directly comparable because it serves the same high-school student/parent audience seeking college admission guidance, though primarily online rather than on-site.
• Wepo (위포트): Korean education company providing K–12 school-based career and admissions programs with university-student mentors, similar in structure to Open Sky's Dreaming School platform. Closely comparable business model and target audience.

Emerging players

• Riiid: Korean AI-driven adaptive learning company (Santa, TOEIC products) targeting test preparation and K–12 learning. Comparable as a Korean edtech player focused on personalized learning outcomes, with a stronger technology but narrower school-based delivery model than Open Sky.
• QANDA (Mathpresso): Korean-origin AI math tutoring app serving K–12 students across multiple Asian markets. Comparable as a Korean-rooted education technology company addressing the same K–12 student learning-and-prep needs, though primarily consumer mobile rather than B2B school channel.
• Class101: Korean online education platform offering hobby and skill-based classes from expert creators. Comparable as a Korean digital education platform serving self-improvement learners, though operating in a different subject-matter category (creative/hobby skills) versus Open Sky's academic mentoring.

Regional players

• Skyteacher (스카이티쳐): Korean online tutoring platform connecting K–12 students with university-student tutors for one-on-one academic help. Comparable because it uses a similar verified-university-student mentor pool to deliver K–12 tutoring, but operates via online 1:1 sessions rather than school-deployed programs.

Others

• Ivy Tutors Network: U.S.-based tutoring and test-prep provider focused on college admissions and academic mentoring for high-school students. Comparable thematically as a college-admission mentoring service for high schoolers, though operating in a different geography and via private-pay 1:1 tutoring rather than Open Sky's B2B school-channel model.

Market position

Strengths5 records

Weaknesses5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/openskyedu
• LinkedInlinkedin.com/company/openskyedu

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds2 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Open Sky