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Spending power
Key facts
Counted staff
61
self-reported 51–200 band
Founded
1985
41 years
Legal entities
None matched
Office countries
1
1 address
Funding rounds
None on record
Company type
Educational
self-reported
Description
TSI International School is a thriving, family orientated school, which educates students aged 2-18 years at two Bangkok campuses.
We follow the English National Curriculum from Early Years Foundation Stage through to Key Stage 3, after which students are prepared for IGCSE and A Level examinations. In recent years, our students’ results have been better than the UK national average and the average of British curriculum schools in South East Asia. Our students receive university offers from around the world.
TSI was established in 1985. Since the management team changed in 2017, the school has gone through a massive renewal process. There are now over 30 nationalities in our community. We are a CIS member school with excellent staff retention.
Our Wongwianyai Campus is our first primary school for students aged 2-11 years. Our Bearing Campus was a secondary school only until August 2025 when we opened our second, state-of-the-art, primary school. Our Bearing Campus now offers parents a single-campus option for their child’s entire educational journey (Pre-Nursery – A levels).
Both TSI campuses are very well equipped with academic, sporting and other extracurricular facilities which are envied by other international schools.
Specialties
All 12 specialties
- EYFS
- Key Stage 1
- Key Stage 2
- Key Stage 3
- Key Stage 4
- Key Stage 5
- UK Curriculum
- International School
- IGCSE
- A Levels
- Pre-Nursery
- Council of International Schools (CIS)
Locations
Country footprint
Show as table · Offices in 1 country
| Countries | 1 |
|---|---|
| Primary country | TH |
All codes: TH
Addresses
- TH1799 Rim Thang Rod Fai Kao, Moo 1 Samrong Nua, Samut Prakarn; Bangkok, 10270Primary
Grid intelligence Members
Signals & hiring
Hiring, headcount and registry-change signals, streamed to members.
Latest signal
Hiring activity
Headcount trend
Financials
Registry-filed capital and financial indicators, standardised by TheGrid.
Paid-up capital
Fiscal period
Registered charges
Revenue
Profit / loss
People & contacts
4 employee profiles on record · names withheld.
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The people relation is never requested, so there is nothing here to unlock.
FAQ
How many people work at TSI International School?
61 counted staff profiles at January 2026, inside the self-reported 51–200 band.
Where does TSI International School have offices?
One address on record, Thailand only. Primary: 1799 Rim Thang Rod Fai Kao, Moo 1 Samrong Nua, Samut Prakarn, Bangkok 10270.
Has TSI International School raised funding?
None linked to this brand.
What does TSI International School list as its specialties?
12 tags on the brand's own list, among them international school and igcse.
Which companies are listed alongside TSI International School?
11 profiles list TSI International School as a peer — 96th percentile in Primary and Secondary Education. It lists ten peers of its own. Royce Royal International School Bangkok and Anglo Singapore International School list it back.