Independent school tour — we visit, film and tell you everything a parent needs to know.
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International Sharing School at Taguspark is one of the very few schools in Portugal offering the full IB continuum — PYP, MYP and Diploma — from age 3 through to 18. Out of more than 60 international schools in Portugal, only three offer this uninterrupted IB pathway. For families planning a long-term stay, that means one school decision, no mid-journey transitions, no curriculum switches.
The campus is spacious and modern — classrooms are large and the facilities feel well-maintained. It sits in the Taguspark technology park in Porto Salvo, just off the A5 motorway, making it easy to reach from Lisbon (around 20 minutes by car), Oeiras, Cascais, and Sintra. The school runs its own bus network covering most of the Lisbon metro area.
The after-school offering is one of the broadest among Lisbon-area international schools — from sailing and horse riding to robotics and graffiti. The school also runs summer camps open to non-enrolled children, which is a practical way to test the environment before committing.
Schools Reviews assessment
✓ What we like
Full 3–18 school — one decision for the entire journey
Outstanding variety of after-school activities and summer camps
Summer camps open to non-enrolled children — try before you commit
Well-located between Lisbon, Oeiras and Cascais
◎ Worth noting
Large class sizes — up to 25 students per class, among the highest for international schools in the Lisbon area
No graduates yet who enrolled from Nursery — that said, the school has been running for nearly a decade (since 2017) and is well past its early years
IB Diploma exam results are not published — the school does not disclose average scores, which makes it harder to benchmark academically
Academics
Extra languages
Portuguese
After school activities
Sports (extra)
Basketball, Climbing, Crossfit, Ballet, Jazz dance, Football, Gymnastics, Judo, Jiu-jitsu, Padel, Rugby, Sailing, Horse riding, Skate, Surf, Volleyball, Swimming
Music (extra)
Music Academy
Languages
Russian · after school
Activities
3D modelling, Art, Cooking, Business mini games, Graffiti, Photography
Digital / coding
Python coding, Game development, Robotics
Fees · 2026/27
* Always verify fees directly with the school — they change annually.
Frequently asked questions
Is International Sharing School fully IB?
Yes — it is one of only three international schools in Portugal offering the complete IB continuum: Primary Years Programme (PYP), Middle Years Programme (MYP), and
IB Diploma (DP). Most international schools in Portugal offer only the IB Diploma at the senior level.
How far is the school from Lisbon?
The school is located in Porto Salvo, Oeiras — approximately 20 minutes from central Lisbon by car via the A5. It is accessible from Lisbon, Oeiras, Cascais, and Sintra. The school operates its own bus routes covering the main residential areas along the Lisbon–Cascais corridor.
How much does International Sharing School cost per year?
Annual tuition starts at €11,790 for Nursery and rises to €26,760 for Grade 12. There is also a one-time enrollment fee of €1,200 and an annual re-enrollment fee of €600. Always verify current fees directly with the school.
What are the class sizes?
Classes at ISS Taguspark are large — up to 25 students, which is among the highest for international schools in the Lisbon area. If smaller classes are a priority, you can filter by class size on the
Portugal schools listing to find schools with smaller groups.
Does ISS Taguspark publish IB exam results?
No — the school does not publicly disclose its IB Diploma average scores. This is worth noting if academic benchmarking matters to you. Schools that do publish results include
Oeiras International School (average 36 out of 45, top 10 in Europe).