Harrow International School

What Harrow International School does

Harrow International School Bangkok operates a single British-curriculum day and boarding school on a 35-acre green campus in the Don Mueang district of Bangkok. Co-educational for students aged 18 months to 18 years, the school delivers the English national curriculum culminating in IGCSE (Years 10–11) and A Level (Years 12–13) qualifications, structured across Early Years (Lion Cubs), Pre Prep, Prep, Shell/Remove/Fifth Form, and Sixth Form phases. The platform is supported by vendor-provided education technology — iSAMS for student information management, Firefly as the learning management system, and Microsoft Outlook for staff and student communications — with differentiation achieved through proprietary pedagogical frameworks including the Leadership in Action co-curricular programme (50+ sports/activities, Duke of Edinburgh's International Award, expeditions, entrepreneurship), the Resilience Project wellbeing curriculum, and Eco-Schools programming that retains Thailand's first consecutive Green Flag Award.

The school generates revenue principally through recurring annual tuition fees billed in three instalments (ranging THB 146,300 for toddler entry to THB 1,063,000 for Sixth Form in the 2026/27 academic year), supplemented by boarding fees (THB 456,700 weekly / THB 571,100 full), door-to-door transport operated by Montri Transportation across four Bangkok zones (THB 119,200–136,200), and one-time application/admission fees (THB 5,000 application, THB 225,000 admission with alumni discount). Pricing operates on annual subscription cadence with a 1.5% prepayment discount, tiered sibling discounts, and refundable deposits of THB 200,000 (day) or THB 275,000 (boarding). Its customer base is predominantly affluent international and Thai families (35 nationalities represented), supplemented by a boarding cohort from 17 nationalities and scholarship students in academic, arts, and sports disciplines.

The institution is operated by Asia International School Limited (AISL), the parent group that owns and governs the Harrow International Schools network across Asia and maintains formal affiliation with Harrow School London (founded 1572) — including shared Board of Governors, cross-campus staff movement, and common educational heritage. The school consistently records approximately 1,860 students, 251–500 teaching and operational staff, 70% A*/A at A Level and 71% A*/A at IGCSE in 2025, and 98% progression to QS Top 100 universities.

Name

Harrow International School

Legal name

Harrow International School Bangkok

Website

https://harrowschool.ac.th

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

251–500 employees

Short description

Harrow International School Bangkok is a private British-curriculum day and boarding school on a 35-acre Bangkok campus, serving approximately 1,860 students aged 18 months to 18 years from 35 nationalities under the AISL-operated Harrow network.

Ownership category

akta.pro rank

Product category

Private K-12 British International Education

NAICS

Elementary and Secondary Schools (6111), Elementary and Secondary Schools (611110), Educational Services (61)

SIC

Services-Educational Services (8200)

akta.pro primary industry

International/Global Curriculum Schools (IB, Cambridge, etc.) (EDAJABAG)

akta.pro secondary industry

International Curriculum Early Learning Academies (e.g., IB Early Years) (EDACADAK)

Keywords

• British international school
• K-12 education
• British curriculum
• IGCSE and A Level
• Boarding school services

Headquarters

HQ city

Bangkok

HQ country

Thailand

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Tuition Fees: Annual tuition fees charged per year group, ranging from THB 146,300 (Lion Cubs Parent Toddler) to THB 1,063,000 (Year 12-13). Billed in three term instalments. Includes lunchtime meals and snacks at no additional charge. Textbooks provided free up to Year 9.
2. Boarding Fees: Annual boarding fees charged for weekly (up to 5 nights, THB 456,700) or full boarding (6-7 nights, THB 571,100). Inclusive of all meals, evening tutoring, certain activities, and group medical insurance. Additional annual incidental charge of THB 20,000 per boarder.
3. Transport Services: Door-to-door school bus service charged annually by zone, ranging from THB 119,200 (Zone 1) to THB 136,200 (Zone 4). Provided by third-party operator Montri Transportation.
4. Application and Admission Fees: Non-refundable application fee of THB 5,000 charged prior to assessment. Admission fee of THB 225,000 upon acceptance (with THB 100,000 discount for alumni children). Waiting pool fee of THB 225,000 for students placed on the waiting list.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Harrow International School Bangkok provides a British international, co-educational day and boarding education for students aged 18 months to 18 years on a 35-acre campus in north Bangkok. The school delivers the British curriculum from Early Years through Sixth Form, culminating in IGCSE and A Level qualifications, alongside comprehensive boarding, sports, performing arts, and leadership co-curricular programmes. Operations are supported by iSAMS student information, Firefly learning management, and Microsoft Outlook platforms.

Product overview

Harrow International School Bangkok is a single unified educational institution offering British international education from Early Years (18 months) through Sixth Form (18 years). The school operates a platform-plus-modules architecture with its core educational programmes (Lion Cubs, Pre Prep, Prep, SR5, Sixth Form) supported by integrated add-on modules including IGCSE and A Level curricula, Boarding Services, Sports Academy Programmes, and the Leadership in Action Co-Curricular Programme. The school follows the British curriculum with IGCSE and A Level qualifications, positioned as a day and boarding school on a 35-acre campus in Bangkok.

Differentiator

Problem solved

Functional benefit

Products and services

• Harrow International School Bangkok (Day and Boarding British Curriculum School) A co-educational day and boarding British curriculum school for girls and boys aged 18 months to 18 years, located on a 35-acre green campus in north Bangkok. It delivers the British curriculum through to IGCSE and A Level qualifications and is the entry-point product that all other offerings (Pre Prep, Prep, SR5, Sixth Form, Boarding, Sports Academies, Leadership in Action) sit under.
• Lion Cubs Early Years Programme Early Years centre for children aged 18 months to 5 years providing a play-based curriculum in a dedicated facility. Parents and toddlers are grouped into Lion Cubs Parent Toddler, Toddler Half Day, Toddler Full Day, Pre Nursery, Nursery and Reception cohorts.
• Pre Prep Programme Education programme for pupils aged 5 to 10 years (Reception through Year 5), blending best practice from around the world with a thematic curriculum focused on core skills, creativity and critical thinking.
• Prep Programme Middle years education for students aged 10 to 14 (Years 6-8), transitioning from Primary to Secondary School with a dynamic curriculum developing foundational concepts across all subjects.
• Shell, Remove and Fifth Form (SR5) IGCSE Programme Secondary education for students aged 14-16 (Years 9-11), covering IGCSE preparation. Students undertake all areas of the curriculum in Shell (Year 9), then specialise in Remove and Fifth Form for examinations.
• Sixth Form A Level Programme Pre-university education for students aged 16-18 (Years 12-13) offering AS Levels in Lower Sixth and A Levels in Upper Sixth, with expert academic and pastoral support for university preparation.
• Boarding Services Full and weekly boarding facilities for students (with the boarding offering extending from primary years through Sixth Form), with four boarding houses (Bradbys, The Grove, The Knoll, West Acre), inclusive meals, evening tutoring, supervised study of 8-10 hours per week, activities, and 24-hour medical care in a safe home-away-from-home environment.
• Sports Academy Programmes Specialised Sports Academies offering year-round training in football, gymnastics, swimming, tennis and golf for students seeking competitive-level athletic development, with pathways to over 140 school sports teams and international competition via FOBISIA, SEASAC, and BISA.
• Leadership in Action Co-Curricular Programme Comprehensive co-curricular programme offering over 50 sports and more than 100 activities per season, expeditions, Duke of Edinburgh's International Award, community service, entrepreneurship education, creative and performing arts, and academic enrichment to develop leadership skills and provide holistic education.

Quantifiable outcome

• 70% A*/A grades at A Level and 71% A*/A at IGCSE in 2025; 90% A*/B at A Level and 92% A*/B at IGCSE
• +4 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Harrow School LondoncoreStrategic or Co-development Partner · 1 January 1998Harrow School London (founded 1572) is the founding institution and namesake of Harrow International School Bangkok. As the first Harrow International School in Asia, Harrow Bangkok maintains a formal affiliation with Harrow School, including shared Board of Governors, staff movement within the group, and a common educational heritage rooted in the Harrow values of Courage, Honour, Humility and Fellowship. The affiliation includes shared traditions, curriculum standards, and access to the global network of Harrow schools. 23 princes of the Thai royal household have been educated at Harrow School London.
• Asia International School Limited (AISL)coreStrategic or Co-development PartnerAISL (Asia International School Limited) is the parent organisation overseeing the Harrow family of schools in Asia. AISL provides educational strategy, leadership development, and governance support across the Harrow network including Bangkok, Beijing, Shanghai, Hong Kong, and other campuses. AISL supports career development opportunities for staff across the group.
• Harrow International Schools Group (Beijing, Shanghai, Hong Kong)minorStrategic or Co-development PartnerHarrow Bangkok is one of a family of six schools that includes Harrow School London, John Lyon School London, and Harrow International Schools in Bangkok, Beijing, Shanghai, and Hong Kong. Links between the schools include shared Board of Governors, staff movement within the group, and collaborative educational initiatives.
• FOBISIA (Federation of British International Schools in Asia)minorStrategic or Co-development PartnerHarrow Bangkok is an active member of FOBISIA, which comprises over 50 British international schools across Asia. Through this network, students compete internationally in swimming, athletics, basketball, football and tee-ball at U11 and U13 levels. The school also participates in FOBISIA Invitational competitions including climbing, golf, gymnastics, sailing, swimming, and tennis.
• SEASAC (South East Asia Students Activities Conference)minorStrategic or Co-development PartnerHarrow Bangkok is a full member of SEASAC, established over 20 years ago. The conference encompasses volleyball, football, cross country, golf, basketball, tennis, rugby union, rugby touch, swimming, gymnastics, badminton, and softball. SEASAC provides pathway for students to compete at high levels throughout their school career.
• BISA (British International Schools Association)minorStrategic or Co-development PartnerHarrow Bangkok competes in BISA competitions across three seasons, encompassing a full range of sports at U9 through to Varsity level.
• Montri TransportationminorOthersMontri Transportation is the third-party service provider for door-to-door school bus routes to and from Harrow Bangkok. They are a well-known and reputable company providing transportation for many international schools in Bangkok, offering safe, reliable, and cost-effective transport with Hermes Tracking Card for departure and arrival time tracking.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Harrow International School Beijing: Sister school within the same AISL group, offering the identical British curriculum and Harrow brand positioning, with comparable boarding, co-curricular and exam outcomes. Closest structural comparator for benchmarking pricing, governance and academic performance.
• Harrow Hong Kong Children School / Harrow International School Hong Kong: Another AISL-operated Harrow International school with shared curriculum, branding and teacher development programmes. Highly comparable premium British international school offering in another major Asian market.
• Bangkok Patana School: Largest British international school in Thailand, founded 1957, serving a similarly affluent local and expat community in Bangkok with British curriculum and comparable university placement record. Head-to-head competitor for premium Bangkok families.
• Shrewsbury International School Bangkok: Premium British-curriculum day and boarding school in Bangkok (Riverside and City campuses), positioned similarly in the top tier of Bangkok's international school market. Direct competitor for families choosing between UK-heritage international schools.
• International School Bangkok (ISB): Well-established international school in Bangkok offering multiple curricula including IB, with similar premium pricing and affluent family positioning. A key competitor for Bangkok's expat and Thai elite families.
• NIST International School: IB-curriculum international school in Bangkok serving a comparable affluent, multi-national cohort. Offers an alternative premium-international-school curriculum path (IB vs IGCSE/A Level) for the same customer segment.
• Dulwich College Management International (Dulwich International School Bangkok): British-heritage premium international school in Bangkok positioned in the same price and quality tier as Harrow Bangkok. Direct competitor drawing on shared UK independent-school heritage and similar affluent clientele.

Regional players

• Tanglin Trust School: Premium British-curriculum school in Singapore targeting expatriate and Singaporean families. Comparable institution by curriculum (IGCSE/A Level), fee tier, and holistic education model, but operating in a different regional market.
• The British School in Tokyo: British international school in Tokyo serving a comparable affluent expatriate cohort with British curriculum. Relevant comparator for understanding student outcomes, premium pricing and talent models across Asia's major international school markets.

Broad incumbents

• Harrow School London: Founding institution of the Harrow brand (est. 1572) and namesake of the Bangkok campus. While a UK boarding school rather than an international school, it sets the brand standards, governance and curriculum benchmarks that Harrow Bangkok operates against.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/harrowbangkok
• YouTubeyoutube.com/user/HarrowBangkokChannel
• Facebookfacebook.com/harrowbangkok
• LinkedInlinkedin.com/company/harrow-international-school-bangkok
• Instagraminstagram.com/harrowbangkok

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

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 Harrow International School