Astra Academy International School vs RBIS International School
Astra Academy International School and RBIS International School are both in Bangkok, about 6 km apart. Both schools offer British, Cambridge IGCSE and Cambridge A Levels programmes, and RBIS International School also offers BTEC Qualification, Cambridge (Primary) and Cambridge (Secondary). Published annual fees are THB 486,000 - 519,000 at Astra Academy International School and THB 264,000 - 570,000 at RBIS International School, which puts Astra Academy International School roughly 21% higher. Astra Academy International School takes pupils from 5 to 18, and RBIS International School from 2 to 18. RBIS International School is the larger school, with around 300 pupils to Astra Academy International School's 130. Typical class sizes are 20 at Astra Academy International School and 15 at RBIS International School.
British Curriculum, Cambridge IGCSE, Cambridge A Levels
Curriculum
British Curriculum, BTEC Qualification, Cambridge (Primary), Cambridge (Secondary), Cambridge IGCSE, Cambridge A Levels
Pupils
Pupils
130
Pupils
300
Typical class size
Typical class size
20
Typical class size
15
Instruction language
Instruction language
English
Instruction language
English
Opened
Opened
2021
Opened
1971
Bus service
Bus service
—
Bus service
Yes
Essentials
Essentials
Location
Location
Astra Academy International School is located at 154 Ekkamai 14 Alley, in the Khlong Tan Nuea area of the Watthana District in Bangkok. The school is in a residential part of the Ekkamai neighborhood, which is connected to Sukhumvit Road. It is accessible by local roads and public transportation, including the nearby Ekkamai BTS station. The area includes housing, small businesses, and local amenities, making it practical for families living in central Bangkok.
Location
RBIS is on Soi Rajavithi 2, Rajavithi Road, Samsennai, Phayathai district, Bangkok 10400, within a 10-minute walk of Victory Monument BTS Station and close to the Aree neighborhood. The area offers convenient public transport access and sits in a mature city suburb.
Stages
Stages
Astra provides education for Primary and Secondary school levels.
Stages
RBIS serves students aged approximately 18 months to 18 years, structured as Early Years (up to age 5), Primary (ages 5–11, Key Stages 1–2), Secondary (11–14, Key Stage 3), and Sixth Form/Post‑16 (14–18, IGCSE and post‑16 pathways).
School type
School type
The school is a co-educational day school. Boarding facilities are not offered.
School type
RBIS is a co‑educational day school.
Pupil nationality mix
Pupil nationality mix
—
Pupil nationality mix
—
Additional learning support
Additional learning support
The school does not have publicly available information on their Additional Learning Support.
Additional learning support
RBIS offers Individualized Education Plans (IEPs), Behavior Support Plans (BSPs), a Nurture Group, and 1–2–1 intervention sessions for students with SEN - supported by teaching assistants and collaboration among SENCo, parents, and specialists.
Country affiliation
Country affiliation
The school is not affiliated with any country.
Country affiliation
RBIS is affiliated with the British education system, following the English National Curriculum throughout its programmes.
Religious affiliation
Religious affiliation
The school does not have any religious affiliation and serves students from all cultural backgrounds.
Religious affiliation
RBIS does not have a religious affiliation.
School day structure
School day structure
The school does not have their day structure publicly available.
School day structure
The specific daily timings for class start/end times, breaks, and transitions for Primary and Secondary sections are not detailed on the publicly available school website.
Bus service details
Bus service details
The school does not have publicly available information on their bus service.
Bus service details
RBIS provides a school bus service available upon request—details and routes are arranged directly through the school.
Fees
Fees
Fee details
Fee details
Tuition Fees (per year) Year 1 to Year 4: 486,000 THB Year 5 to Year 6: 510,000 THB Year 7 to Year 11: 519,000 THB
Additional Fees Application Fee: 3,500 THB (non-refundable; includes assessment)
Dining Programme (per year) Year 1 to Year 6: 32,100 THB Year 7 to Year 11: 33,900 THB (Includes morning snack and lunch; vegetarian and allergy-conscious options available.)
Other Fees Additional costs may apply for Intensive Language Programmes, English as an Additional Language (EAL), after-school enrichment classes, examination fees, and school trips.
The school does not have their refund policy and payment methods publicly available.
Fee details
Application and Registration Fees
* Application and assessment fee: THB 5,000 (non-refundable) * Registration fee: THB 100,000 (non-refundable) * Capital levy (for short-term families): THB 40,000 per term for up to three terms, instead of the registration fee * Refundable deposit: THB 30,000, returned upon withdrawal with one full term’s notice and no outstanding balance
* Meals: Early Years THB 36,000 per year, Primary THB 39,000, Secondary THB 42,000. * Educational enhancement (ECAs/trips): Early Years THB 9,000, Primary THB 15,000, Secondary THB 18,000 per year. * Learning materials for Years 10–11: THB 10,000 per year. * SEN or English support (if required): THB 60,000–360,000 per year, depending on level. * Uniforms, external exams, and residential trips are billed separately.
Payment Terms Payments are accepted via bank transfer, cheque, or credit card (1.5% fee for card payments). A late payment fee of 1.5% per month applies. Advance payment plans (1–3 years) offer 5–10% discounts.
Diving deeper
Diving deeper
Boarding arrangements
Boarding arrangements
—
Boarding arrangements
—
Uniform requirement
Uniform requirement
—
Uniform requirement
—
Food options
Food options
—
Food options
—
House system
House system
—
House system
—
Governance and ownership
Governance and ownership
—
Governance and ownership
—
Academics
Academics
Curriculum details
Curriculum details
Astra Academy delivers the UK National Curriculum from Year 1 through Year 13. In the primary years, students experience broad learning across literacy, numeracy, science, and creative subjects. The approach is inquiry-driven, with a focus on helping students understand how to think critically and communicate clearly. In secondary school, students follow Key Stage 3 in Years 7 to 9, then prepare for Cambridge IGCSEs in Years 10 and 11. In Years 12 and 13, students work toward Cambridge A-Level qualifications. The school uses a structured progression model that builds academic depth and skill development across each stage, preparing students for university-level expectations.
Curriculum details
RBIS follows the English National Curriculum from Early Years Foundation Stage (ages 18 months–5) through to Upper Secondary (ages 16–18) with distinct Key Stages 1–5 . At Key Stage 3 (Years 7–9), students study a broad range of subjects as a foundation before moving into the pre‑IGCSE Year 9 programme . In Key Stage 4 (Years 10–11), students take Cambridge IGCSE subjects across core and elective options, including English, Maths, Sciences, Humanities, Thai (for Thai nationals), and Mandarin for non-native speakers . Post‑16 (Years 12–13, Key Stage 5), students choose between Cambridge A‑Levels, BTEC qualifications, or an RBIS High School Diploma, with support for IELTS/SAT testing if required.
These varied pathways offer both academic and vocational routes leading to university entry in Thailand and abroad.
School Tour (Optional) Schedule a school tour either in-person or virtually with the admissions team.
Online Application Apply through the OpenApply portal:
Fill out the application form Upload two years of school reports/transcripts Submit required ID and documents Pay the application fee
Admissions Review The admissions team evaluates your application and may contact you for further discussions or clarification.
Interview or Assessment (if needed) Depending on grade level, an interview or academic screening might be arranged.
Acceptance & Enrollment Upon acceptance:
You’ll receive a formal offer Complete enrollment forms Pay the necessary fees to secure the spot
Admissions
1. If available, book an Open House or school visit. During your visit, an admissions officer will give a tour, walk through facilities, and answer questions in person. 2. Complete the application form. You’ll need to submit child’s passport copy, academic transcripts from the past 12 months, a reference letter from the previous school, and a valid residence permit or visa. 3. Student assessment. RBIS administers an internal assessment, including English placement (to determine EAL support) and cognitive testing (e.g. CAT4 for gifted identification). 4. Application review. The admissions team, together with academic leadership, reviews all documents and assessment results before confirming an offer or waitlist status. 5. Enrollment and fee payment. Once an offer is accepted, payment of registration, tuition deposit or capital levy, and confirmation of tuition fees is arranged. Your child is then officially enrolled.
Scholarships
Scholarships
The school does not have publicly available information on their scholarships.
Scholarships
RBIS offers Merit Scholarships for students aged 11–13 who demonstrate high achievement in academics, arts, music or sport. These awards range from 20% to 50% of tuition, and candidates must complete school-administered assessments and attend an interview. There are also Leadership Scholarships that may offer 20% up to full tuition to students showing leadership potential in various fields; both types require submission of an application form by the published deadline.
Waitlist
Waitlist
The school does not have a waitlist.
Waitlist
RBIS does operate a waitlist or placement pool: applicants may receive an offer or be placed on a waiting list depending on availability for a given year group. The site indicates that offers are conditional until assessments and places are confirmed. However, detailed public explanation of waitlist timelines or criteria is not provided.
