This comparison is deliberately not a price ranking. SISB Rayong publishes a trilingual route from age two through secondary and 2026/27 tuition of ฿401,700–฿789,300. ISC Pattaya is an English National Curriculum school for ages two to 11 with 2026/27 tuition of ฿174,600–฿359,676. ISC's Year 6 exit and SISB's growing secondary operation are the central planning points.
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Both schools begin at age two and publish dated 2026/27 fees. SISB continues from EYFS and Singapore Primary toward Cambridge qualifications. ISC Pattaya follows EYFS and English National Curriculum Key Stages 1–2, ends at Year 6 and is independently NEASC-accredited.
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| Dimension | SISB Rayong | International School of Chonburi (Pattaya) |
|---|---|---|
| School | Singapore International School Rayong | International School of Chonburi (Pattaya) |
| Age span | Ages 2–18; 2026/27 new applications Nursery 1–Grade 10 | Ages 2–11; Early Years through Year 6 |
| Curriculum | EYFS, Singapore Primary, Singapore/UK hybrid Grades 7–8, Cambridge IGCSE and AS/A-Level | English National Curriculum: EYFS and Key Stages 1–2 |
| Published tuition | Dated 2026/27: Nursery ฿401,700; Kindergarten ฿429,600; Primary ฿470,700–฿567,300; Grades 7–10 ฿609,300–฿650,700; Grades 11–12 ฿789,300. | Dated 2026/27 annual-prepayment figures: part-time Early Years ฿174,600–฿263,646; Reception ฿295,074; Years 1–2 ฿342,216; Years 3–6 ฿359,676. |
| Named extras | Application ฿5,000; assessment ฿5,000; enrolment ฿220,000; deposit ฿50,000; resources, meals and ELS separate. | Application ฿3,000; registration ฿70,000 or ฿20,000 siblings; insurance ฿2,000; lunch, transport and support priced separately. |
| Planning point | Fees reach Grade 12, but 2026/27 new applications stop at Grade 10. | Primary-only; plan the Year 6 transfer and compare annual-prepayment with 3%-higher term totals. |
| Sources | campus overview · 2026/27 fees | 2026/27 fees · school overview · NEASC record · OPEC listing |
| Live editorial | Read the SISB Rayong editorial | Read the ISC Pattaya editorial |
Both schedules are dated 2026/27. Request SISB’s entry, resources, meals, ELS and transport rows alongside ISC's registration, insurance, lunch, transport, support and term-payment totals.
SISB publishes 2026/27 tuition of ฿401,700–฿789,300. ISC publishes annual-prepayment tuition of ฿174,600–฿359,676 plus application, registration, insurance and selected services.
SISB moves from EYFS and Singapore Primary into Cambridge IGCSE and AS/A-Level. ISC follows EYFS and English National Curriculum Key Stages 1–2 through Year 6.
SISB’s tariff reaches Grade 12 while new applications stop at Grade 10. ISC families must plan the Year 6 transfer, payment basis and complete inclusion list.
The schools overlap only through primary. SISB combines English, Thai and Mandarin with Singapore and Cambridge stages; ISC uses English as the medium alongside Thai within an English National Curriculum primary school.
Ask both schools to state the child’s proposed class, start date, age cut-off and following year. SISB publishes Nursery through Grade 12 fee rows, though new applications stop at Grade 10. ISC publishes Early Years through Year 6.
Do not translate Grade and Year labels by number alone. Request the placement test, class equivalence, current cohort and written progression route.
SISB records English, Thai and Mandarin. Ask for weekly allocation, subject language, newcomer support and the transition from Singapore stages into Cambridge qualifications.
ISC records English as the medium alongside Thai. Ask how English proficiency is assessed, how EAL connects to mainstream classes and how Thai teaching differs for fluent and non-fluent pupils.
At both visits, request anonymised work and the report format. Observe how teachers explain unfamiliar tasks and whether language support builds independent subject learning.
SISB’s 2026/27 tuition runs from ฿401,700 to ฿789,300. Application and assessment are ฿5,000 each, enrolment ฿220,000 and deposit ฿50,000. Resources are ฿30,500–฿84,000, meals ฿26,400–฿39,000 and ELS ฿20,000–฿30,000 per term.
ISC annual-prepayment tuition runs from ฿174,600 for two-day half-day Early Years to ฿359,676 in Years 3–6; term totals are 3% higher. Application is ฿3,000, registration ฿70,000 or ฿20,000 for siblings, and insurance ฿2,000.
ISC publishes lunch at ฿9,360–฿21,960 yearly, transport at ฿52,580–฿200,000 and EAL or learning support at ฿21,000–฿70,000. Ask both schools for personalised complete totals.
SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. Confirm which senior grades currently operate, accept newcomers and offer each subject at the Rayong campus.
ISC ends at Year 6. Ask which secondary schools recent pupils enter and what transcript, curriculum map and references support transfer.
Rehearse relocation after two years. Request the transcript, curriculum map, grading scale and teacher references each school would supply.
SISB publishes ELS at ฿20,000–฿30,000 per term. ISC publishes EAL and learning support at ฿21,000–฿70,000 yearly.
If support matters, request the staff member, group size, minutes per week, review date, progress measure and exit criteria. Separate English acquisition from other learning needs.
Bring existing reports before assessment and ask admissions to state any limitations in writing.
SISB’s sequence reaches Cambridge IGCSE and AS/A-Level, but the Rayong campus opened in 2023 and new applications stop at Grade 10. Ask which secondary grades and subjects operate now.
ISC has no secondary stage. Ask how Year 6 pupils are prepared for transfer, which destinations recent cohorts entered and what transition support is included.
For either school, request anonymised work, a sample transcript and the transition timeline.
ISC is independently listed by NEASC as accredited since 2025 and also appears in the OPEC directory. SISB’s current ledger record does not list a campus-level accreditation.
Accreditation does not remove the need to compare teacher qualifications, class size, homework and reporting cadence for the child's class.
SISB publishes a 2% full-year tuition discount, sibling tuition discounts of 5% for the second child and 10% for later children, and a 20% enrolment reduction from the second child. ISC's published annual figures already include a 3% prepayment discount, and sibling registration is ฿20,000 instead of ฿70,000.
Compare ISC's discounted annual figures with the 3%-higher term totals and keep every concession attached to its named row.
SISB is in Nong Taphan, Ban Khai; ISC is in Banglamung Soi 39. Drive both routes at arrival and collection times, including work and sibling stops.
ISC publishes transport at ฿52,580–฿200,000 yearly. SISB excludes transport from standard fees. Both schools are day-only, so request an exact address quote and test vehicle time.
Save offers, fee schedules, calendars and placement answers together.
Arrive before the class begins and watch the transition from gate to room. Record how quickly the child separates, who welcomes them, which language adults use and whether the routine is understandable without repeated prompting. Ask what happens on a difficult morning and how parents are informed. A polished tour after children leave cannot answer these questions.
Ask for a starting assessment, mid-year report and anonymised work from the proposed class. At SISB, trace English, Thai and Mandarin into Singapore and Cambridge stages. At ISC, trace English National Curriculum work through Key Stage 2 and ask how EAL pupils demonstrate readiness for mainstream lessons.
Record the balance of adult-led, child-initiated, individual and group activity during the visit. Ask how teachers adapt the same task for a child who is new to English, already reading or reluctant to join a group. The right environment is not defined by one teaching philosophy; it is the setting where staff can explain how this child will participate and progress.
Confirm arrival supervision, meals, allergies, illness procedures, late collection and activities. SISB prices meals and resources separately. ISC prices lunch, transport, insurance and support outside tuition, so model the child's actual routine rather than comparing tuition alone.
Place both calendars beside the family’s work calendar. Count closures that require alternative care and ask whether holiday programmes are offered, separately registered or guaranteed to enrolled pupils. A school-year tuition comparison does not capture care purchased during long breaks.
SISB is in Nong Taphan, Ban Khai; ISC is in Banglamung Soi 39. Verify each entrance, transport route and contract address before payment. Test gate queues, parking and the return journey.
Both schools are day-only. ISC's wide annual transport band makes the exact zone material; ask for pickup time, route duration, supervision and price in writing.
For each school, finish the sentence: “This place works if…” Include the quoted total, language routine, classroom fit, support availability, care hours, travel ceiling and next-school plan. Then write the conditions that would trigger a review. This prevents a single attractive feature from hiding an unresolved cost or transition risk.
Run the same exercise for two future dates. At age six, both schools may be usable, but SISB's Singapore primary sequence and ISC's English National Curriculum require different evidence. At age eleven, SISB may continue while ISC requires a secondary transfer.
For an ISC family approaching Year 6, ask admissions for a destination list that separates applications, offers and actual enrolments, then request the preparation calendar for assessments, references and records. For a SISB family considering the same age, confirm that the proposed Grade 7 cohort is operating, how the Singapore/UK hybrid is taught and which later Cambridge subjects are presently planned. Put those answers beside the child's likely relocation date. Continuity is valuable only when the next stage exists, accepts the child and supplies the subjects or support the family expects.
Before signing, compare the two schools’ invoice language line by line. For ISC, reconcile annual-prepayment and term totals with registration, insurance, lunch, transport and support.
Also rehearse a mid-year move. Ask what notice is required, which reports and curriculum records would be released, how deposits are returned and whether prepaid services are refundable. Families using the Eastern Seaboard industrial corridor should test both routes at real collection time, because a lower fee cannot compensate for an unsustainable daily journey.
Ask how each school handles a mid-year departure before assuming either transfer will happen neatly at the end of a stage. Record required notice, reports supplied, outstanding-fee conditions and whether unused services can be refunded. A family expecting relocation should weight these documented terms alongside teaching and price.
Do not pay while a condition remains material and unanswered. Ask admissions to correct the offer email, retain both 2026/27 schedules and note who supplied every grade and support answer. That record makes the decision auditable.
ISC Pattaya publishes much lower headline tuition at every broad stage. Both schedules are dated 2026/27, but their curricula and inclusion sets differ, so compare personalised complete totals and qualification routes before ranking.
No. SISB publishes Cambridge IGCSE and AS/A-Level after its Singapore stages. ISC follows EYFS and English National Curriculum Key Stages 1–2 through Year 6.
SISB publishes ages 2–18, with new applications through Grade 10. ISC serves ages 2–11 and ends at Year 6.
Ask for grade availability, tuition, application, assessment, enrolment, deposit, resources, meals, transport, trips, devices, ELS and refund terms.
Include attendance pattern, annual or term tuition basis, application, registration, insurance, lunch, transport, EAL or learning support and refund terms.
Use the decision framework above to weigh curriculum, fees, continuity, location and your child’s fit.