Private Tutors in London and Online

Since 2007 we have helped over 15,000 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:

Children's Writing Competition 2026

Keystone Tutors are excited to announce our Creative Writing Competition is back for summer 2026 — and this year we're running two competitions, so there's an opportunity for every age group to take part.

A Guide to the Engineering and Science Admissions Test (ESAT)

The Engineering and Science Admissions Test (ESAT) is a critical assessment for students aspiring to pursue undergraduate courses in engineering and science at some of UK’s leading universities. As of 2026 it is used by Cambridge University, Oxford University, Imperial College and UCL, with more institutions potentially signing up in future years. Make sure to check the entry criteria for your desired course to see if the test is a requirement.

Webinar: Year 7 Entry (11+) and Year 9 Entry (13+) Pre-Tests & Entrance Examinations

In recent years, many independent senior schools have incorporated ‘Pre-tests’ as an initial entry assessment for Year 7 and 9 entry. Pre-tests commonly form the first stage of the admissions process, and schools use them to identify the students who are most suitable to proceed to the next stage. Pre-tests can be administered in written form or on a computer, with the ISEB Common Pre-Test, CEM Test and the CAT 4 being the most widely used.