What Prem International School does

Prem International School (legal name: Prem Tinsulanonda International School / PTIS) is a private K-12 international school founded in 2001 and operating from a 100-acre campus in Mae Rim, Chiang Mai, Thailand. It is positioned as Thailand's first institution to offer all four IB programmes (PYP, MYP, DP, and CP) to both day and boarding students. The academic core spans Early Years (ages 2.5-5) through Grade 12 (ages 16-19), supplemented by an Intensive English Programme for non-native English speakers and a dedicated College and Careers Counselling function. The school serves a multinational community of 40+ nationalities with 7 home languages represented, and 70% of its teaching faculty hold Master's degrees or higher. Outputs are strong: in 2024, Grade 12 students secured 133 university offers including Cornell, Imperial College London, ETH Zurich, UCL, and University of Melbourne, and all junior and senior World Scholar's Cup teams earned invitations to the Tournament of Champions at Yale.

Beyond academics, the school runs a diversified product surface including flexible boarding options (full, weekly, flexi) for Grades 3-12, specialized academies (Music, Golf, Tennis, Swimming), the Forest School for Early Years-Grade 1, a Three-Generation Farm, on-campus Prem Medical Centre with 24/7 nursing, and the Exploria co-curricular programme offering 100+ activities. Recent capital projects include Prem Recording Studios (March 2026) and Prem Track (2026 soft opening). Business model is straightforward tuition-and-fee subscription: recurring annual tuition plus boarding fees, transport, meals, and visa services, with merit scholarships of 10-50% for Grades 8-12. Distribution is direct-to-consumer via a dedicated admissions team (Director of Admissions & Marketing, Head of Admissions, Admissions Manager, Representatives) using OpenApply for online applications, Google Calendar for campus tour scheduling, and campus tours as the primary mid-funnel conversion mechanism. The school is privately held with no disclosed parent company, funding rounds, or external shareholders identified; it sits within the broader Traidhos Community ecosystem for experiential and outdoor programming.

Name

Prem International School

Legal name

Prem Tinsulanonda International School

Website

https://ptis.ac.th

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

101–250 employees

Short description

Prem International School is a private K-12 international school in Chiang Mai, Thailand, founded in 2001 and offering all four IB programmes plus boarding to a multinational community of 40+ nationalities. It generates revenue primarily through recurring tuition, boarding, and ancillary fees, and serves international families seeking full IB pathways and global university placement.

Ownership category

akta.pro rank

Product category

International K-12 Education

NAICS

Elementary and Secondary Schools (6111)

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

• International education
• IB World School
• Boarding school
• K-12 education
• Experiential learning

Headquarters

HQ city

Chiang Mai

HQ country

Thailand

HQ region

Asia

Offices1 record

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: Primary revenue from tuition fees for day and boarding students across Early Years through Grade 12 IB programmes. Additional revenue streams include boarding fees, transport services, meals, and visa services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Prem International School delivers full International Baccalaureate education from Early Years through Grade 12, including all four IB programmes (PYP, MYP, DP, and CP) on a 100-acre campus in Chiang Mai, Thailand. The school serves both day and boarding students with flexible boarding options, an Intensive English Programme, specialized academies (Music, Golf, Tennis, Swimming), a Forest School, Three-Generation Farm, Recording Studios, and over 100 co-curricular activities. It is Thailand's first Four Programme IB World School, offering comprehensive international education to families from 40+ nationalities.

Product overview

Prem International School operates as a unified educational platform offering Thailand's first complete IB World School programme with all four IB programmes (PYP, MYP, DP, CP). The institution combines academic excellence with experiential learning through integrated modules including specialized academies (Music, Golf, Tennis, Swimming), unique campus facilities (Forest School, Three-Generation Farm, Recording Studios), comprehensive boarding options, a Medical Centre, and over 100 co-curricular activities via the Exploria programme. The Early Years, Primary Years, Middle Years, and Diploma Programmes form the core academic tiers, supplemented by the Intensive English Programme for language support, while the boarding and community programmes extend learning beyond traditional classroom boundaries.

Differentiator

Problem solved

Functional benefit

Brands

• Prem Panthers: The school's athletics and sports team name representing students in various competitive sports.
• Exploria
• Prem House System
• Traidhos Community
• Prem Music Academy
• Prem Golf Academy
• Prem Tennis Academy
• Prem Swimming Academy
• ARThailand Artist Residency Programme

Products and services

• IB Primary Years Programme (PYP) Holistic, child-centred learning programme for Grades 1-5 (ages 6-11 years) that develops critical thinking and confidence through inquiry-driven education.
• IB Middle Years Programme (MYP) Comprehensive programme for Grades 6-10 (ages 11-16 years) that fosters inquiry, critical thinking, and global awareness.
• IB Diploma Programme (DP) Advanced academic programme for Grades 11-12 (ages 16-19 years) that fosters critical thinking, global citizenship, and academic excellence for university preparation.
• IB Career-Related Programme (CP) Thailand's pioneering IB Career-related Programme that blends academic learning with career-focused education for students pursuing vocational pathways.
• Boarding Programme

Quantifiable outcome

• 133 university offers to Grade 12 students in 2024
• +2 more outcomes

Named customers7 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Traidhos CommunitycoreStrategic or Co-development PartnerTraidhos Community is a sister organization that collaborates with Prem on experiential education programmes. This includes Traidhos Camp for outdoor education, Community Learning Week for Grades 6-11, and the Three-Generation Farm integrated into campus operations. The partnership provides camping experiences, outdoor education expertise, and farm-to-table sustainability integration.
• Traidhos ResidenceminorOthersOn-campus residence/hotel facility for visiting parents and guardians, allowing them to stay in close proximity to their children during school events or visits.
• Shangri-La Hotel Chiang MaiminorOthersAnnual Career, College, and University Fair venue hosted at Shangri-La Hotel Chiang Mai, attracting over 100 universities and 700+ students, parents, and educators.
• Allianz AyudhyacoreOthersComprehensive medical insurance provider partnership for all boarding students. Mandatory medical plan included in boarding fees, with accident and emergency coverage also provided for day students. Partnership ensures quality medical care access at Chiang Mai hospitals.
• Artist Residency Thailand (ARThailand)coreStrategic or Co-development PartnerPrem hosts the Artist Residency Thailand programme on campus, welcoming international artists to work with students. Belgian pianist Myriam Ayari and other practitioners conduct workshops, mentor music academy students, and collaborate with film students on creative projects.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Chiang Mai International School (CMIS): The most direct local competitor in Chiang Mai, also serving international families with an English-language curriculum and K-12 programmes. Highly comparable in geography, customer segment, and tuition tier.
• Garden International School: Premium international K-12 school in Kuala Lumpur serving expatriate families. Comparable on full-curriculum international school positioning, IB pathways, and premium tuition in the broader ASEAN expat market.
• Harrow International School Bangkok: Premium UK-curriculum-anchored international school in Thailand with boarding. Comparable on premium international positioning and the Thai international school market, though differentiated by curriculum (British vs IB).
• Bangkok Patana School: One of Thailand's largest and oldest international schools with a broad curriculum including IB programmes. Comparable on premium positioning, expat family base, and a wide extracurricular/academy offering.
• International School Bangkok (ISB): A leading premium international K-12 school in Thailand with established IB programmes and a global university placement track record. Comparable on full-IB offering, expat family targeting, and premium pricing.

Broad incumbents

• Tanglin Trust School: Long-established Singapore international school serving expatriate families with a broad curriculum including IB. Comparable on premium pricing, IB pathway depth, and globally mobile family segment, though UK-curriculum roots.
• United World College of South East Asia (UWCSEA) Dover: A larger and globally recognised IB-anchored K-12 school in Singapore. Comparable as a full-IB premium international school targeting globally mobile families and top university placements, though operating at materially greater scale.

Others

• Traidhos Camp (Traidhos Community): Sister experiential-learning organization within the same Traidhos community ecosystem that collaborates with Prem on outdoor education and Community Learning Week. Adjacent rather than competitive, but ecosystemically intertwined.

Emerging players

• Dulwich College International Schools (Asia network): Network of premium international schools across Asia with strong UK-curriculum roots that have selectively added IB programmes. Comparable on premium expat family targeting and multi-academy specialization.

Regional players

• Northland International School Bangkok: Bangkok-based international school offering IB and other pathways to predominantly expatriate families. Comparable as a Thai-market competitor targeting internationally mobile families seeking IB education.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/prem-international-school

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 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 Prem International School