Seisa Group
Seisa Group is a Japanese school corporation (Kokusai Gakuen) operating accredited correspondence high schools and universities with 30 campus sites nationwide — the highest in Japan — serving approximately 6,000+ students, including elite athletes, through a hybrid online and in-person learning model.
- Company typePrivate
- Founded1972
- HeadquartersYokohama, Japan
- Headcount1,001–5,000
- GTM typeB2C
- OfferingServices
What Seisa Group does
Seisa Group is a Japanese private school corporation (学校法人国際学園 / Kokusai Gakuen) operating a network of accredited correspondence high schools, junior high schools, and universities under a philosophy of "schools should adapt to students." Its flagship SEISA Kokusai High School is a distance-learning high school system with 30 physically recognized schooling sites (スクリング会場) nationwide — the highest number among Japanese correspondence high schools, spanning Hokkaido to Okinawa. The group serves a diverse student body of approximately 6,000+ students across its programs, including non-traditional learners, elite athletes (in speed skating, fencing, figure skating, table tennis, and other sports), and students pursuing arts and international exchange opportunities. The portfolio is anchored by SEISA Kokusai High School, SEISA High School, SEISA Junior High School, SEISA University, and SEISA Dohto University, supplemented by the Shinseiza theater group and FM Shonan Magic Wave broadcasting subsidiary.
The group's core technology is a hybrid education platform combining online learning (星槎オンライン学習) — delivered via YouTube channels, live streaming, on-demand video, and a web portal — with in-person schooling at its 30 accredited campus sites. The online platform integrates content from JAXA (space education), the National Institute of Japanese Literature archives, and SEISA's own journal. Specialized programs include the Speed Skating Elite Academy (partnership with Japan Skating Federation), a Sports Individualized Education Plan (IEP) for athlete scheduling flexibility, the annual SEISA Olympics multi-category competition (sports, e-sports, literature, music, cooking, traditional games), and the SEISA Africa Asia Bridge (SAAB) international exchange program, which is now a registered UNESCO 75th Anniversary commemorative project.
The business model is tuition-based with annual billing across enrolled high school and university students, supplemented by specialized Elite Academy program fees, a multi-year donation campaign (300 million yen target, July 2025 to June 2030) for facility development, and partnership-driven program extensions. Go-to-market is direct-to-consumer via the group's website, campus-based enrollment, and information sessions. The group also operates the 星槎全国会 (SEISA National Association) — a four-pillar community network (Student Council, Alumni Association, Parent Association, Graduate Parent Association) — which functions as a primary referral channel. Notable partners include JAXA, Japan Skating Federation, Japan Fencing Federation, Yokohama City, UNDP, UNOSAA, JICA Yokohama, and DeNA Kawasaki Brave Thunders. Revenue figures are not publicly disclosed.
Seisa Group firmographics
Firmographics- Name
- Seisa Group
- Legal name
- 学校法人国際学園 (Kokusai Gakuen)
- Website
- https://seisagroup.jp
- Company type
- Private
- Founded year
- 1972
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Seisa Group is a Japanese school corporation (Kokusai Gakuen) operating accredited correspondence high schools and universities with 30 campus sites nationwide — the highest in Japan — serving approximately 6,000+ students, including elite athletes, through a hybrid online and in-person learning model.
- Ownership category
- akta.pro rank
Seisa Group industry classification
Industry- Product category
- Private Education / Correspondence High School
- NAICS
- Educational Services (611), Educational Support Services (611710), Colleges, Universities, and Professional Schools (6113), All Other Schools and Instruction (61169)
- SIC
- Services-Educational Services (8200)
- akta.pro primary industry
- Student Safety, Wellbeing & SEL Technology (Monitoring, Reporting) (EDAJAMAJ)
Keywords
Where Seisa Group is headquartered
LocationHeadquarters
- HQ city
- Yokohama
- HQ country
- Japan
- HQ region
- Asia
Offices7 records
Markets served
Seisa Group business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Tuition and School Fees: Primary revenue from tuition fees charged to enrolled students at SEISA International High School, SEISA High School, SEISA Junior High School, and SEISA University. The group operates as a school corporation (学校法人国際学園) offering accredited secondary and higher education programs.
- Donations and Fundraising: 星槎教育環境整備事業資金 (SEISA Education Environment Development Fund) with a target of 300 million yen (3億円), collected from students, graduates, parents, and supporters from July 2025 to June 2030. Accepts donations via postal transfer, bank transfer, and credit card.
- Elite Academy Programs: Specialized sports programs including Speed Skating Elite Academy and Fencing Elite Academy, providing structured athletic training alongside academic studies for aspiring professional athletes.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | General admission tuition |
| One time/ perpetual license | Pay-as-you-go | 星槎教育環境整備事業資金 donation - Individual |
| One time/ perpetual license | Pay-as-you-go | 星槎教育環境整備事業資金 donation - Corporate |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels8 records
Seisa Group product offering
Product offeringCore offering
Seisa Group is a private Japanese educational corporation (学校法人国際学園) that delivers accredited secondary and higher education primarily through SEISA Kokusai High School, a distance/correspondence high school with 30 officially recognized learning centers nationwide—the largest such network in Japan. The group sells tuition-based enrollment in secondary, junior high, and university programs, supplemented by specialized sports academies (Speed Skating, Fencing Elite Academies), international exchange festivals (SEISA Africa Asia Bridge), and online learning content.
Product overview
Seisa Group operates a comprehensive educational ecosystem centered on 星槎国際高等学校 (SEISA Kokusai High School), a distance/correspondence high school with 30 nationally distributed learning centers - the largest number of officially recognized schooling sites in Japan. The portfolio includes 星槎大学 (SEISA University), 星槎オンライン学習 online learning platform with YouTube channels and JAXA partnership content, 星槎オリンピック multi-category annual competitions (sports, creative, e-sports, literature), SEISA Africa Asia Bridge international exchange festivals, 受験対策ゼミ exam preparation seminars, and 星槎全国移動美術展 traveling art exhibitions supervised by international artists. The group emphasizes 'school that adapts to students' philosophy, supporting diverse learners including elite athletes, artists, and those seeking alternative education paths.
Differentiator
Problem solved
Functional benefit
Brands
- SEISA Africa Asia Bridge (SAAB): International exchange festival connecting Japan with Africa and Asia, promoting SDG awareness and cross-cultural understanding among youth. Started in 2015.
- SEISA Olympics
- 星槎全国会 (SEISA National Association)
Products and services
- SEISA Kokusai High School (星槎国際高等学校) A distance/correspondence high school offering accredited secondary education through 30 officially recognized learning centers (schooling sites) nationwide in Japan—the highest number for a correspondence high school system in Japan. Provides flexible education for athlete students, arts students, those seeking alternative learning paths, and includes specialized sports academy programs and e-sports courses.
- SEISA University (星槎大学) A university offering undergraduate and graduate programs with guest lecturer series, international exchange opportunities, and integration with the broader SEISA educational network. Includes agreement with Yokohama City on employment promotion and support for people with disabilities.
- SEISA Gakuen (星槎学園)
Quantifiable outcome
- Olympic medals: Silver in Beijing 2022 (figure skating) and Milan-Cortina 2026 (figure skating) — Yuma Kagiyama
- +4 more outcomes
Companies that use Seisa Group
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles3 records
Seisa Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature4 records
Seisa Group partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core and minor.
- Kawasaki Brave Thunders (川崎ブレイブサンダース)coreBasketball team (DeNA Kawasaki) signed an education partnership agreement with SEISA High School Communication Course to support youth athletes in balancing competitive basketball with academic studies. The partnership aims to provide comprehensive support for student-athletes'竞技 and educational development.
- Yokohama City International BureaucoreCo-host of SEISA Africa Asia Bridge 2025 (11th edition). Yokohama City International Bureau served as co-organizer for this international exchange event, which connected Japanese students with peers from Africa and Asia under the theme '知繋 (Chkei) - To Know and To be Connected'. The event drew 10,593 participants.
- Cabinet Secretariat Expo International Exchange ProgramcoreSEISA Africa Asia Bridge 2025 received official support from the Cabinet Secretariat's 'Expo International Exchange Program', facilitating Japan's participation in international cultural and educational exchange initiatives.
- UNDP (United Nations Development Programme)coreUNDP Japan office participates in SEISA Africa Asia Bridge events, contributing speakers and support for the international exchange program's SDG-related activities. The UNDP Administrator's representative attended SAAB 2025 opening ceremony.
- UNOSAA (United Nations Office for South-South Cooperation)coreUNOSAA contributed policy, monitoring, and advocacy perspectives to SEISA Africa Asia Bridge 2025, supporting the program's alignment with UN Sustainable Development Goals and South-South cooperation frameworks.
- JICA YokohamaminorJICA Yokohama participated in SEISA Africa Asia Bridge as a partner organization supporting international development education and cross-cultural exchange activities.
- Multiple African and Asian Embassies in JapancoreSAAB events involve participation and support from multiple African and Asian embassies, including Eritrea and others, who contribute speakers, cultural content, and diplomatic support to the international exchange program.
- Japan Skating Federation (公益社団法人日本スケー卜連合)coreOfficial partnership to establish Speed Skating Elite Academy programs at SEISA Kokusai High School Obihiro. The federation jointly develops athletic training programs and provides access to national team-level coaching and facilities, creating pathways for students to become elite speed skaters while completing high school education.
- Yokohama CitycoreAgreement on employment promotion and support for people with disabilities signed between Yokohama City and SEISA University, supporting employment outcomes for students with disabilities.
- Tokachi e-Sports Project / Tokachi ICT ParkminorSEISA Kokusai Obihiro leads the Tokachi e-Sports Project, a regional initiative to promote e-sports in Tokachi, Hokkaido, and support the establishment of e-sports clubs at elementary, junior high, and high schools across the region.
- JAXA (Japan Aerospace Exploration Agency)coreSEISA Group has an educational partnership agreement with JAXA for space education content. JAXA provides space-related learning materials and programs accessible to all SEISA students, integrating aerospace education into the broader curriculum under the theme of '宇宙から心まで' (from space to the heart).
- National Institute of Japanese Literature (国文学研究資料館)minorPartnership to provide access to Japanese literature archives and historical documents for educational purposes. SEISA students use these materials for research projects, particularly through the 眞山青果 study program connected to the theater group Shinseisakuza.
- Bhutanese Educational InstitutionsminorSEISA has maintained a 40-year relationship with the Kingdom of Bhutan, including student exchanges, educational collaborations, and cultural programs. Two Bhutanese students completed their studies at SEISA and left with tears and smiles.
Scale indicators12 records
Recent moves11 records
Expansion highlights6 records
Seisa Group competitors and assessment
Company assessmentBroad incumbents
- Benesse Corporation: Major Japanese education conglomerate (Kodomo Challenge, 市進, correspondence programs) with much broader scale. Comparable in providing educational services to families across life stages, though serving different student segments at much larger scope.
- CASTLE Inc. (トライグループ / Trygroup): Operates correspondence high school programs (Try correspondence course) along with cram school and household tutoring. Comparable to SEISA in distance learning segment but with a stronger supplementary test-prep orientation rather than diversified programming.
- Nippon Sport Science University (日本体育大学): Japan's premier sports-focused university serving elite athletes. Comparable to SEISA's Elite Academy model in serving student-athletes balancing competition with academics, though at the university level and with stronger sports federations ties.
- Tama Art University / Digital Hollywood University: Specialized Japanese universities serving non-traditional and creative-learner segments similar to SEISA University. Comparable in focusing on niche student populations (artists, digital content creators, age-diverse learners) rather than traditional university positioning.
- Waseda University Correspondence Course (早稲田大学 通信教育課程): Distance university program at one of Japan's top universities, providing accredited degrees via distance learning. Comparable in offering credentialed education through correspondence, with much stronger brand prestige but less flexible student support.
Others
- Kumon (公文教育研究会): Japan's largest supplemental education franchise serving K-12 students. Comparable not as a direct education provider but as an ecosystem player serving Japanese families with structured learning support; competes for the same family-time and discretionary learning spend.
Direct peers
- Z-Kai Group (Z会グループ): Established correspondence education provider offering correspondence high school, university entrance prep, and supplemental learning. Comparable to SEISA in servicing distance learners with rigorous academic positioning and supplementary study materials.
- Kadokawa Dwango Educational (N High School / N高等学校): Japan's largest correspondence high school, operated as part of the Kadokawa Group. Directly competes with SEISA Kokusai High School in the correspondence/distance learning segment with a tech-platform-led hybrid model serving similar non-traditional learner segments.
- Will Academy (代々木アニメーション学院 / Will Group): Correspondence high school with specialized tracks including performing arts, sports, and anime - similar differentiated programming approach to SEISA's Elite Academies and multi-category SEISA Olympics. Targets non-traditional learners across Japan.
Emerging players
- Asahi Net / Risu Tappuri (株式会社朝日ネット): Operates correspondence high school programming in Japan using pure-online technology delivery. Compared to SEISA, offers a more streamlined digital experience without extensive physical campus infrastructure, representing a pure-online competitive model.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Seisa Group social profiles
Digital presenceSeisa Group compliance and trust
Trust signalCompliance2 records
Seisa Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Seisa Group leadership team
Management profileNumber of profiles
Profiles5 records
Seisa Group subsidiaries and ownership
Company hierarchySubsidiaries6 records
Seisa Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Seisa Group M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Seisa Group
What does Seisa Group do?
Seisa Group is a private Japanese educational corporation (学校法人国際学園) that delivers accredited secondary and higher education primarily through SEISA Kokusai High School, a distance/correspondence high school with 30 officially recognized learning centers nationwide—the largest such network in Japan. The group sells tuition-based enrollment in secondary, junior high, and university programs, supplemented by specialized sports academies (Speed Skating, Fencing Elite Academies), international exchange festivals (SEISA Africa Asia Bridge), and online learning content.
Is Seisa Group a public or private company?
Seisa Group is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was Seisa Group founded?
Seisa Group was founded in 1972. It employs 1,001 to 5,000 people.
Where is Seisa Group based?
Seisa Group is headquartered in Yokohama, Japan, in the Asia region.
How does Seisa Group make money?
Three revenue lines are on record. Tuition and School Fees are the primary driver. The others are donations and Fundraising and elite Academy Programs.
Who are Seisa Group's main competitors?
Broad incumbents on record are Benesse Corporation, CASTLE Inc. (トライグループ / Trygroup), Nippon Sport Science University (日本体育大学), Tama Art University / Digital Hollywood University and Waseda University Correspondence Course (早稲田大学 通信教育課程). Kumon (公文教育研究会) is listed as an others. Direct peers are Z-Kai Group (Z会グループ), Kadokawa Dwango Educational (N High School / N高等学校) and Will Academy (代々木アニメーション学院 / Will Group). Asahi Net / Risu Tappuri (株式会社朝日ネット) is listed as an emerging player.
Does Seisa Group have an API?
No public API is recorded for Seisa Group.
What industry is Seisa Group in?
Seisa Group's product category is Private Education / Correspondence High School. Its primary akta.pro industry code is EDAJAMAJ, Student Safety, Wellbeing & SEL Technology (Monitoring, Reporting). Its NAICS code is 611 and its SIC code is 8200.