Greenwich Japanese School

What Greenwich Japanese School does

Greenwich Japanese School, legally The Japanese School of New York, is a Japanese supplementary school (hoshu jugyo) serving Japanese expatriate families in the Greenwich, Connecticut / Westchester County corridor. Founded on September 2, 1975, in Jamaica, Queens, the school relocated four times before settling in Riverside (Greenwich) in 1985 and now educates 81 students across grades 1-9 (elementary 1-6 and junior high 7-9) under Principal Morimoto Keisaku. The school celebrated its 50th anniversary on September 2, 2025.

The school's core offering is bilingual supplementary education delivered by a staff of 31 (including five newly assigned teachers in 2025), with instruction in Japanese and English designed to keep expatriate students aligned with the Japanese national curriculum while integrating with U.S. schooling. Operational and programmatic support is drawn from an unusually broad institutional network: the Japanese Ministry of Foreign Affairs, MEXT, the Japanese Education Council, the Japanese American Association, local parent organizations, and a constellation of corporate partners including ANA, SCSK USA, NHK Cosmos Media America, and SMBC. The school has also built exchange and athletic relationships with several local independent and public schools, notably Eagle Hill School, Bruno M. Ponterio Ridge Street School, The Harvey School, King School, and Clarkstown High School South.

Revenue mechanics combine tuition fees, parent-teacher organization membership fees, and donations from government, corporate, and community sources. The school is positioning for incremental growth in 2026 with 9 new admissions (2 elementary, 7 junior high) and has expanded into career education programming with Japanese-affiliated companies, but the institution remains small, niche, and tightly bound to the size and stability of the Japanese expatriate community in southwestern Connecticut.

Name

Greenwich Japanese School

Legal name

The Japanese School of New York

Website

https://gwjs.org

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

1–10 employees

Short description

Greenwich Japanese School is a K-9 Japanese supplementary school in Riverside, Greenwich, Connecticut, serving 81 Japanese expatriate students with bilingual instruction, 31 staff, and support from Japanese government agencies, corporate sponsors, and a parent community.

Ownership category

akta.pro rank

Product category

Japanese Supplementary K-9 Education

NAICS

Elementary and Secondary Schools (6111), Language Schools (611630)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Language Immersion & Bilingual Private Schools (EDAJABAL)

Keywords

• Japanese supplementary education
• Bilingual K-9 education
• Expatriate student schooling
• Japanese language instruction
• International cultural exchange

Headquarters

HQ city

Riverside (Greenwich)

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. Tuition fees: Primary revenue from tuition payments for student enrollment
2. PTO membership fees: Parent-Teacher Organization fees collected from families
3. Donations and fundraising: Donations for 50th anniversary commemorative projects and general school support

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Greenwich Japanese School (legally The Japanese School of New York) is a private Japanese supplementary school that provides a Japanese national curriculum education program for Japanese expatriate children in grades 1-9. It delivers bilingual Japanese and English instruction, integrated elementary-junior high education, special support education, and cultural exchange programs with local American schools, charging annual tuition and supporting families through a Parent-Teacher Organization.

Product overview

Greenwich Japanese School (GJS) offers a comprehensive Japanese educational program for Japanese expatriate children in the New York area. The school provides an integrated curriculum spanning elementary (grades 1-6) and middle school (grades 7-9) levels. Core offerings include Enhanced Japanese Language Education, English Education, Integrated Elementary-Middle School Education, Special Support Education (Apple Class), and Local Understanding Education through partnerships with local American schools. The school operates from its campus in Greenwich, Connecticut, and maintains close ties with the Japanese business community and Japanese consulate. Notable programs include annual events such as the Sports Day, School Festival, graduation ceremonies, field trips, overnight camps, and cultural exchange activities with partner schools.

Differentiator

Problem solved

Functional benefit

Products and services

• Enhanced Japanese Language Education (日本語での教育の充実) Comprehensive Japanese language education program maintaining strong Japanese educational standards for students living abroad, focusing on reading, writing, and cultural understanding for Japanese expatriate children in grades 1-9.
• English Education (英語教育) English language learning program designed to develop practical English communication skills through local school exchanges and experiential learning activities, supporting Japanese expatriate children in a US environment.
• Integrated Elementary-Middle School Education (小中一貫教育) Seamless educational program spanning grades 1-9 that ensures smooth transition between elementary and middle school levels with a coordinated curriculum for Japanese expatriate children.
• Special Support Education (特別支援教育の充実) - Apple Class Specialized educational support program providing individualized assistance to meet diverse learning needs of students at Greenwich Japanese School.
• Local Understanding Education (現地理解教育の推進) Cultural exchange and local understanding program that fosters appreciation of American culture through partnerships with Eagle Hill School, King School, The Harvey School, Bruno M. Ponterio Ridge Street School, and Clarkstown High School South.
• School Events and Activities (各種学校・学年行事) Comprehensive calendar of school events including annual sports day (運動会), school festivals (スクールフェスティバル), graduation ceremonies, field trips, overnight camps, and exchange programs for enrolled students.
• After-School Program (ASP) After-school care and enrichment program for enrolled students of Greenwich Japanese School, providing additional programming beyond regular school hours.

Quantifiable outcome

• Successful 50-year operation with continued enrollment growth
• +1 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Ten partnerships are on record, tiered core and minor.

• Clarkstown High School SouthcoreStrategic or Co-development Partner · 5 May 20269th grade students visit for exchange, participating in Japanese language classes and general high school classes with Japanese-speaking student guides.
• Bruno M. Ponterio Ridge Street SchoolcoreStrategic or Co-development Partner · 11 February 2026Public school conducting exchange program with grades 1-2. Joint activities include games, cultural experiences with Japanese activities.
• The Harvey SchoolcoreStrategic or Co-development Partner · 20 January 2026Private school where 7th grade students host Japanese cultural activities including sushi-making crafts, calligraphy, tea ceremony, kimono experience, and Japanese games.
• SCSK USA Inc.minorStrategic or Co-development Partner · 16 December 2025IT services company providing e-Net Caravans information literacy instruction for students grades 5-9 and faculty on internet safety and proper online behavior.
• SMBC Mitsui Sumitomo BankminorGTM or Marketing Partner · 12 December 2025Facilitated basketball clinic with professional player Nakamura Miraira Sairen through corporate sponsorship.
• Eagle Hill SchoolcoreStrategic or Co-development Partner · 4 December 2025Local American school conducting regular exchange programs with grades 3-4. Students participate in joint activities including Japanese cultural demonstrations (calligraphy, kendama, origami, fukuwarai) and English games.
• NHK Cosmos Media AmericaminorStrategic or Co-development Partner · 4 December 2025CEO/Kentaro Kaigi conducted career education lecture on broadcasting and telecommunications for grades 6-9 about international media and communications industry.
• King SchoolcoreStrategic or Co-development Partner · 3 December 20258th grade students teach Japanese culture including kendo,ojide, kimono dressing, tea ceremony, and traditional games to King School students.
• ANA (All Nippon Airways)minorStrategic or Co-development Partner · 6 November 2025Career education program where ANA staff (pilots, mechanics, cabin crew, ground staff) conduct aviation classroom sessions for grades 4-6 to teach about aviation careers.
• Greenwich Green & CleanminorStrategic or Co-development Partner · 20 September 2025Local volunteer organization hosting town-wide coastal cleanup at Greenwich Point Park. Students participate in environmental conservation activities.

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Regional players

• Greenwich Academy: Greenwich Academy is a leading independent co-educational day school located in the same Greenwich, Connecticut market as Greenwich Japanese School. It is comparable as a local private K-12 competitor for English-medium education of families in the same catchment area, though it does not deliver Japanese curriculum.
• Japanese School in London (JOSL): JOSL is a Japanese supplementary school serving Japanese expatriate families in the UK with Japanese curriculum and bilingual programming, providing a useful international comparison point to Greenwich Japanese School's expat-education model.
• Singapore Japanese School: Singapore Japanese School is a Japanese supplementary school serving Japanese expatriate children in Singapore with full Japanese curriculum and English programming, providing an Asia-based regional peer with the same institutional structure as Greenwich Japanese School.
• Toronto Japanese School: Toronto Japanese School is a Canadian Japanese supplementary school serving Japanese expatriate children in the Greater Toronto Area with a similar Japanese curriculum and cultural-program structure, comparable to Greenwich Japanese School but operating outside the US market.

Direct peers

• Japanese School of San Francisco: The Japanese School of San Francisco delivers Japanese-language and Japanese-curriculum education to expatriate children in the San Francisco Bay Area, making it a directly comparable peer in mission, customer base, and supplementary-school structure to Greenwich Japanese School.
• Japanese School of Greater Seattle: Japanese School of Greater Seattle serves Japanese expatriate children in the Pacific Northwest with Japanese curriculum instruction, sharing Greenwich Japanese School's combination of supplementary education, cultural programming, and English-immersion components.
• Japanese School of Los Angeles: The Japanese School of Los Angeles is a Japanese supplementary school serving Japanese expatriate children in the Los Angeles area with a K-9 curriculum following Japanese national standards, paralleling Greenwich Japanese School's mission and operating model in a different US geography.
• Japanese School of Houston: The Japanese School of Houston provides Japanese-language and cultural education to Japanese expatriate families in the Houston metro area, operating the same supplementary-school model as Greenwich Japanese School in a different corporate-driven expat hub.

Broad incumbents

• Lycée Français de New York: Lycée Français de New York is a well-established, larger private bilingual (French-English) K-12 school serving a comparable expat-diplomatic and corporate family base in the New York area, offering a broader scale of the bilingual expat-school model that Greenwich Japanese School occupies for the Japanese community.
• German International School Washington D.C. GIS Washington D.C. is a German-curriculum bilingual K-12 school serving the German expatriate community on the US East Coast, sharing Greenwich Japanese School's combination of national-curriculum instruction, English immersion, and exchange programming but at greater scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/greenwich-japanese-school

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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 Greenwich Japanese School