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Hello, we are OSC

We are trusted by IB schools and teachers across the world to provide supplementary support for their students. Founded in 1990 by an IB teacher, our team is passionate about promoting international and community-mindedness through education. This is reflected in our mission statement.


Our Mission





OSC’s mission is to provide the highest quality educational support for IB students and schools; to support philanthropic educational projects; and to nurture a fulfilling working environment in which everyone is treated with integrity and respect.






OSC provides a valuable service for IB students. Hundreds of excellent subject matter expert teachers come together to help IB students get the most out of their IB course experience through top-quality revision support.
Jeffrey Beard, Director General, Emeritus, IB

We ensure that we provide the highest quality education support by only working with experienced and specialist IB teachers

Our teachers work for great IB schools during term time. In their holidays, they complement the work done in other IB schools through delivering our IB Revision Courses and Summer Programmes. Some quick facts about our teachers:

  • 200 IB teachers work with OSC
  • 93% are examiners
  • 3,000 years of combined teaching experience
  • New teachers go through a stringent recruitment and mentoring process

Read more about our teachers






We support IB students by running university fairs in the UK and US

Over 20 leading universities attend our university fairs. They are solely IB-focused and provide students with a unique opportunity to meet university representatives who are specifically interested in them as an IB student.  

Our attendance to the OSC Summer Fairs provides us with a fantastic opportunity to meet high achieving prospective IB students.
International Recruitment Office, Imperial College


Read more about our University fairs for IB students




We support IB schools by delivering bespoke revision and study skill workshops to their students

ISB was looking to partner with an organisation that had a solid track record in the field of IB teaching. It was important to us that our students would avail of expertise that came from experienced and qualified teachers who had a deep understand of the IB Diploma Programme. OSC ticked all those boxes.
Felim Bolster, Head of High School, International School of Brussels, Belgium 


I wanted to email to say thank you for the visit. The feedback from the students was fantastic. The teachers said the form 11s returned from the lunchtime session buzzing with ideas. The evening session was also great. We have never had such a good turnout. The staff who were present were talking about it and commented on how compelling and informative the presentation was.
Claire Marsden, IB Coordinator, Oporto British School, Portugal 


Contact us to discuss working together






OSC is a company you can trust. We pride ourselves on our reliability and fantastic customer service.




Accredited by the British Accreditation Council for Independent Further and Higher Education as a Short Course Provider of UK courses.


  • OSC is an accredited body, with membership of the British Accreditation Council (BAC).
  • Click here to find out why you should choose a centre accredited by the BAC.
  • Click here to view the full BAC accreditation report on OSC.
  • Click here to view the OSC's BAC accreditation certificate.
  • If you wish to make a complaint against an accredited institution please click here