Private Tutors in London and Online

Since 2007 we have helped over 10,000 students fulfil their educational potential. Uniquely, Keystone exclusively employs 60 full-time UK based tutors and also represents a highly select pool of freelance tutors. With offices in London, Hong Kong and Singapore and recommended by head teachers of top independent schools, we have an exceptional reputation for helping students achieve their best; delivering outstanding results, building confidence and instilling life-long intellectual curiosity.

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"Expect highly polished, wow-factor quality, impressive transparency, an emphasis on pedagogy and a genuine commitment to ethics and professionalising the industry."

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"Britain's Leading Private Tutoring Company"

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"One of the most professional and trustworthy private tutoring organisations in London."

Why parents choose Keystone

School Entrance Tutors

Keystone represents an experienced pool of tutors who devise tailored programme to prepare students for 7 Plus, 8 Plus, 11 Plus, 13 Plus Common Entrance or 16 Plus entrance exams as well as Pre-tests (inculding the ISEB Common Pre-Test and UKiset).

GCSE, IGCSE, IB & A Level

Keystone represents experienced and professional GCSE tutors, IGCSE tutors, IB tutors and A Level tutors across the subject spectrum. The tutors we introduce to students have a thorough knowledge of the various exam boards.

University Entrance Tutors

Keystone represents a range of specialist tutors who can assist students approaching university admissions tests and interviews for Oxbridge and other leading UK universities.

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Tutoring Agency in London & Online

Keystone is unique in employing over 60 UK based professional tutors on a full-time basis. Our employed tutors engage with Keystone's bespoke professional development programme, work exclusively for Keystone on a fully employed basis, and are committed to tutoring as a career and profession. We believe these factors make a unique difference to the level of commitment we can assure, as well as the quality of teaching we can provide. See a fuller list of the tutors we represent here.

FEEDBACK FOR KEYSTONE TUTORS

"I just wanted to update you now that the 11+ is well behind us that our daughter got accepted to both St Paul’s and Godolphin & Latymer. She had worked with two of your tutors and we are so grateful for the preparation and guidance with respect to the process."

Mother of 11+ student

"A great team of wonderful teachers. Their support and steadfast commitment have been paramount to my daughter’s success in the entry exams. Their enthusiasm was addictive, their tutoring skills were beyond excellence and they inspired my daughter with good values, positivity, and confidence."

Parents of 16+ Applicant

"The tutors have been encouraging, guiding and challenging my child to reach his full academic potential. It has been a truly remarkable journey and my child has not only passed the exams but was also offered academic scholarship from two top ranked UK schools."

Mother of 13+ Student

Latest Advice:

Sixth-form School Entry and the 16 Plus Exam

Enrolling your child in a new school for the final two years of their secondary education can be a big change, at a critical time in their pathway toward university. It can also be an enormous opportunity as well, if your child gains a place at a school that is a better fit for their needs and goals.

A Guide to Henrietta Barnett Admissions

The Henrietta Barnett School, a state-funded girls’ grammar school in north London, has earned a place among the most academically successful schools in the UK — including many of the country’s most exclusive and expensive private institutions. It is therefore no surprise that Henrietta Barnett was named State Secondary School of the Year for Academic Excellence 2025 in The Sunday Times Parent Power Guide 2025, alongside several other accolades.

A Guide to Reading School Admissions

About Reading SchoolReading School is a 900-year-old, selective, boys’ grammar school in Berkshire. Providing both day and boarding options, the school accepts boys from Years 7 to 11. Consistently ranking among the top schools in Berkshire for GCSE and A level results, Reading School is renowned for its academic excellence.