千駄ヶ谷日本語教育研究所

What 千駄ヶ谷日本語教育研究所 does

千駄ヶ谷日本語教育研究所グループ (Sendagaya Japanese Institute Group) is a Tokyo-based Japanese language education group founded in 1975, operating three Japanese language schools and a teacher training institute under the Sendagaya Educational Academy (学校法人千駄ヶ谷教育学園), a private school corporation. The group's core offerings include a Ministry of Education-designated preparatory education course for university admission (capacity 1,728 students), a graduate school preparatory course (capacity 900 students), a business Japanese academy for employment-track students (capacity 100 students), and an in-house Japanese language teacher training program (日本語教師養成講座) operated since 1976. Sendagaya serves international students from 60+ countries who seek admission to Japanese universities, graduate schools, and vocational institutions, with particular strength in Chinese, Vietnamese, Korean, and Thai source markets. The group has produced 25,000+ graduates over nearly 50 years and places approximately 1,000 students per year into Japanese higher education institutions.

The underlying technology platform comprises a proprietary learning management system (Sendagaya LMS), an automated JLPT mock-test scoring system, an online workbook aligned to the group's original textbook series (コミュニケーション日本語 1-3), and an IT-based attendance management system. The group also publishes and commercially distributes original textbooks, JLPT practice exam books, a business Japanese case-study textbook, and a five-volume Japanese language teaching methodology series. Its distribution model relies on overseas representative offices in Dalian (China) and Hanoi (Vietnam), direct on-campus enrollment through a formal 8-step admission process that includes Immigration Services Agency proxy visa filing, multilingual student support (10 languages), and a network of 70+ partner universities including special recommendation pathways with the Teikyo University Group (joined 2017), Waseda, Keio, Meiji, and bridge-program agreements with Hosei, Showa Women's University, and Bunkagakuen. Revenue is generated primarily through multi-year tuition contracts (¥1,074,750 to ¥1,650,000 per program) and student dormitory fees across 8+ managed and partnered Tokyo residences; revenue figures are not publicly disclosed. The group operates as a private school corporation with no external investment, public listing, or funding rounds.

Name

千駄ヶ谷日本語教育研究所

Legal name

千駄ヶ谷日本語教育研究所 (Sendagaya Japanese Institute)

Website

https://jp-sji.org

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

1–10 employees

Short description

Sendagaya Japanese Institute Group is a private Tokyo-based Japanese language school operator founded in 1975, running three MEXT-accredited language schools (combined capacity 2,728 students) and a teacher training institute. It serves international students from 60+ countries seeking admission to Japanese universities and graduate schools, with 25,000+ alumni and overseas offices in China and Vietnam.

Ownership category

akta.pro rank

Product category

Japanese Language Education

NAICS

Language Schools (611630), Exam Preparation and Tutoring (611691), Educational Support Services (611710)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Integrated Language + Academic Skills (EAP) Bridging Programs (EDAIAJAF)

akta.pro secondary industries

TESOL / Bilingual / World Language Teacher Preparation Programs (EDAHAFAI), Language & Communication Continuing Education (EDAAAEAF)

Keywords

• Japanese language education
• University preparation courses
• International student services
• JLPT test preparation
• Teacher training programs

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D, Supply Chain

Revenue model

1. Tuition and fees from academic programs: Primary revenue stream from tuition fees charged for Japanese language courses across three schools. Programs range from 1 year 3 months to 2 years in duration, with total program costs ranging from approximately ¥1,074,750 to ¥1,650,000. Revenue is recognized over the program period on a per-installment basis (first payment, second payment, third payment).
2. Japanese Language Teacher Training Courses: Revenue from Japanese language teacher training programs offered through SJI Co., Ltd. (株式会社SJI), part of the group structure.
3. Student dormitory fees: Revenue from managed and partnered student dormitory accommodations (Daiichi Takadanobaba, Takadanobaba, Shimo-Ochiai, Yoyogi-Uehara, Trusty Kasai, Grace Nishikasai, Trusty Tanashi I & II, Trusty Higashi-Murayama).

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Sendagaya Japanese Institute Group is a private Japanese language education institution that delivers multi-year classroom-based Japanese language courses to international students in Tokyo, covering beginner to advanced proficiency (CEFR A1 through advanced academic preparation). Programs include the MEXT-designated Preparatory Education Course for university/college admission, a Graduate School Preparatory Course, a Business Japanese / Employment Course, and a Japanese Language Teacher Training Course, with bundled student visa sponsorship, dormitory housing, and university placement services.

Product overview

千駄ヶ谷日本語教育研究所グループ operates as a multi-school educational group comprising four distinct Japanese language education programs: (1) 千駄ヶ谷日本語学校, a Ministry of Education-designated preparatory education course for university/college/vocational school admission (capacity 1,728); (2) 千駄ヶ谷日本語教育研究所付属日本語学校, a graduate school preparatory course (capacity 900); (3) 千駄ヶ谷外語学院, a general and business Japanese course for employment-track students (capacity 100); and (4) 日本語教師養成講座, a teacher training program. The group leverages its proprietary LMS, online workbooks, automated assessment systems, and attendance management tools to deliver Japanese language education and multilingual student support services to international students.

Differentiator

Problem solved

Functional benefit

Products and services

• Sendagaya Japanese College — Preparatory Education Course (千駄ヶ谷日本語学校 進学準備教育課程) A Ministry of Education, Culture, Sports, Science and Technology (MEXT) designated preparatory education course for international students aiming to enter Japanese universities, colleges, and vocational schools. Offers a 2-year April enrollment or 1-year 6-month October enrollment program with classroom-based Japanese language instruction from beginner to advanced levels (9 proficiency levels), JLPT and EJU preparation, and Immigration Services Agency proxy visa filing. Capacity of 1,728 students.
• Sendagaya Japanese Institute — Graduate School Preparatory Course (千駄ヶ谷日本語教育研究所付属日本語学校 大学院進学コース) A specialized course for international students preparing to enter Japanese graduate schools. Features logical writing, oral presentation training, research proposal development, and JLPT/EJU preparation. Operated by Best Communications Co., Ltd. (株式会社ベスト・コミュニケーションズ). Capacity of 900 students with enrollment periods in April, July, October, and January. Tuition ranges from ¥1,074,750 (1-year 3-month / January enrollment) to ¥1,650,000 (2-year / April enrollment).
• Sendagaya Foreign Language Academy — Business Japanese / Employment Course (千駄ヶ谷外語学院 就職課程) A general and business Japanese language course ranging from daily conversation to business Japanese for international students seeking employment in Japan. Offers programs from daily Japanese to workplace language skills, supported by the proprietary 外国人のためのケーススタディで学ぶビジネス日本語 中級 textbook. Capacity of 100 students. Operated by Sendagaya Foreign Language Academy.
• Japanese Language Teacher Training Course (日本語教師養成講座) A training program for prospective Japanese language teachers, providing certification-aligned coursework in Japanese language teaching theory and practice. Covers Japanese grammar, phonetics/vocabulary/semantics, linguistics/Japanese affairs, Japanese language history, and teaching methodology across the proprietary 5-volume 日本語教育講座 textbook series. Operated by SJI Co., Ltd. (SJI株式会社).
• Student Dormitory Housing (学生寮) Managed and partnered student dormitory accommodation for Sendagaya students across Tokyo locations, providing integrated housing with the language program to reduce onboarding friction for international students.

Quantifiable outcome

• 25,000+ graduates successfully entered universities, graduate schools, and employment in Japan over nearly 50 years
• +5 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Three partnerships are on record, tiered core and major.

• 帝京大学・帝京平成大学 (Teikyo University / Teikyo Heisei University)coreStrategic or Co-development PartnerSpecial recommendation admissions system (特別推薦入試制度) where Sendagaya students who meet academic and attendance criteria can enter without taking written entrance examinations. May include tuition reduction or waiver depending on university and faculty. Also features the 'All Teikyo Special Selection' system for outstanding students. First group of 11 Sendagaya students accepted in November 2021.
• 70+ Partner Universities and CollegescoreStrategic or Co-development PartnerSpecial recommendation systems with over 70 partner universities, graduate schools, and vocational colleges. Partners include Waseda University, Keio University, Meiji University, Rikkyo University, Hosei University, Kansai University, and many others. Students can apply through school recommendations with higher acceptance rates and potential entrance fee reductions or waivers.
• 法政大学・昭和女子大学・文化学園大学 (Hosei University / Showa Women's University / Bunkagakuen University)majorStrategic or Co-development PartnerBridge program partnerships allowing Sendagaya students enrolled in Japanese language courses to concurrently attend university classes at partner institutions. Completed courses are credited toward the university degree. Participants include JLPT N1/N2 holders or students with sufficient EJU scores. Students can experience real Japanese university life and use campus facilities including libraries and cafeterias.

Scale indicators6 records

Recent moves13 records

Expansion highlights6 records

Direct peers

• Intercultural Institute of Japan: Tokyo-based Japanese language and teacher training institution offering programs comparable to Sendagaya's teacher training course alongside standard Japanese language courses for international students.
• ARC Academy Tokyo: Tokyo-based Japanese language school offering university preparation, graduate school preparation, and business Japanese programs with comparable student demographics and overseas office presence.
• Akamonkai Japanese Language School: Large Tokyo-based Japanese language school operating multiple campuses with comparable university preparation courses, MEXT-designated status, and a similar 25+ year operating history serving international students seeking Japanese higher education.
• ISI Group (formerly ISI Language School): One of Japan's largest Japanese language school groups operating multiple campuses in Tokyo, Kyoto, and Nagoya with similar university preparation programs, dormitory services, and international student recruitment from China and Southeast Asia. Directly comparable multi-school model.
• Manabi Japanese Language School: Multi-location Japanese language school with campuses in Tokyo, Yokohama, and Nagano offering similar long-term Japanese language programs for international students seeking university admission in Japan.
• Tokyo School of Japanese Language (TSJL): Long-established Tokyo Japanese language school offering similar preparatory education course designation, university/graduate school placement programs, and dormitory services for international students.
• Genki Japanese Language School: Tokyo-based Japanese language school with strong university placement focus, multiple campuses, and similar international student recruitment model targeting Chinese and Southeast Asian markets.
• KAI Japanese Language School: Established Tokyo-based Japanese language school offering university preparation, graduate school preparation, and JLPT programs with similar student demographics and overseas recruitment offices in China and Vietnam.

Others

• Japan Foundation (日本語国際センター): Government-affiliated institution that commissions Sendagaya for Japanese language teacher training and foreign resident education programs. Functions as a regulator/funder in the same Japanese language education ecosystem rather than a direct commercial competitor.

Regional players

• Kyoto Japanese Language School (Kyoto JaLS): Comparable Japanese language school serving international students but primarily operating in the Kansai region (Kyoto/Osaka). Similar course structure for university preparation but geographically distinct from Sendagaya's Tokyo-only footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCrJ01lireQAexMvPr9TtxBQ?view_as=subscriber
• Facebookfacebook.com/SendagayaJapaneseInstitute
• Instagraminstagram.com/sji_1975/?hl=ja
• LinkedInlinkedin.com/company/%E5%8D%83%E9%A7%84%E3%83%B6%E8%B0%B7%E6%97%A5%E6%9C%AC%E8%AA%9E%E6%95%99%E8%82%B2%E7%A0%94%E7%A9%B6%E6%89%80

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about 千駄ヶ谷日本語教育研究所