| School | HMC Division | Membership | Location | Age Range |
| New Hall School | London (UK) | British Isles | Chelmsford, United Kingdom | 1 - 18 |
| Newcastle High School for Girls | North East (UK) | British Isles | Newcastle upon Tyne, United Kingdom | 3 - 18 |
| Newcastle upon Tyne Royal Grammar School | North East (UK) | British Isles | Newcastle upon Tyne, United Kingdom | 8 - 18 |
| Newcastle-under-Lyme School | North West (UK) | British Isles | Newcastle-Under-Lyme, United Kingdom | 2 - 18 |
| North London Collegiate School | London (UK) | British Isles | Edgware, United Kingdom | 4 - 18 |
| Norwich High School for Girls | East (UK) | British Isles | Norwich, United Kingdom | 3 - 18 |
| Norwich School | East (UK) | British Isles | Norwich, United Kingdom | 4 - 18 |
| Notting Hill and Ealing High School | London (UK) | British Isles | Ealing, London, United Kingdom | 4 - 18 |
| Nottingham High School | East (UK) | British Isles | Nottingham, United Kingdom | 4 - 18 |
| Oakham School | East (UK) | British Isles | Oakham, United Kingdom | 10 - 18 |
| Oban High School | Scottish (UK) | Associate (UK) | Oban, United Kingdom | |
| Oporto British School | International | International | Porto, Portugal | 3 - 18 |
| Oswestry School | West (UK) | British Isles | Oswestry, United Kingdom | 4 - 18 |
| Oundle School | East (UK) | British Isles | Oundle, United Kingdom | 11 - 18 |
| Pangbourne College | South Central (UK) | British Isles | Reading, United Kingdom | 11 - 18 |
| Peponi School | International | International | Ruiru, Kenya | 13 - 18 |
| Peterhouse | International | International | Marondera, Zimbabwe | 4 - 18 |
| Pipers Corner School | South Central (UK) | British Isles | High Wycombe, United Kingdom | 4 - 18 |
| Plymouth College | South West and Wales (UK) | British Isles | Plymouth, United Kingdom | 3 - 18 |
| Pocklington School | North East (UK) | British Isles | Pocklington, United Kingdom | 2 - 18 |
| Princethorpe College | West (UK) | British Isles | Rugby, United Kingdom | 11 - 18 |
| Prior Park College | South West and Wales (UK) | British Isles | Bath, United Kingdom | 11 - 18 |
| Putney High School | London (UK) | British Isles | Putney, London, United Kingdom | 4 - 18 |
| Pymble Ladies’ College | International | International | Pymble, Australia | |
| Queen Anne’s School | South Central (UK) | British Isles | Caversham, United Kingdom | 11 - 18 |
| Queen Elizabeth Grammar School | North East (UK) | British Isles | Wakefield, United Kingdom | 7 - 18 |
| Queen Elizabeth’s Hospital | South West and Wales (UK) | British Isles | Bristol, United Kingdom | 7 - 18 |
| Queen Elizabeth’s School, Barnet | London (UK) | Associate (UK) | Barnet, United Kingdom | |
| Queen’s College | South West and Wales (UK) | British Isles | Taunton, United Kingdom | 0 - 18 |
| Queenswood School | London (UK) | British Isles | Hatfield, United Kingdom | 11 - 18 |
| Ratcliffe College | East (UK) | British Isles | Leicester, United Kingdom | 3 - 18 |
| Reading Blue Coat School | South Central (UK) | British Isles | Reading, United Kingdom | 11 - 18 |
| Redmaids’ High School | South West and Wales (UK) | British Isles | Bristol, United Kingdom | 7 - 18 |
| Reed’s School | London (UK) | British Isles | Cobham. Surrey, United Kingdom | 11 - 18 |
| Reigate Grammar School | South East (UK) | British Isles | Reigate, United Kingdom | 11 - 18 |
| Rendcomb College | West (UK) | British Isles | Cirencester, United Kingdom | 3 - 18 |
New Hall School
Age range
1 - 18
Location
The Avenue, Chelmsford, Essex, CM3 3HS, United Kingdom
Head’s name
Katherine Jeffrey
Newcastle High School for Girls
Age range
3 - 18
Location
Tankerville Terrace, Newcastle upon Tyne, Tyne & Wear, NE2 3BA, United Kingdom
Head’s name
Amanda Hardie
Newcastle upon Tyne Royal Grammar School
Age range
8 - 18
Location
Eskdale Terrace, Jesmond, Newcastle Upon Tyne, NE2 4DX, United Kingdom
Head’s name
Geoffrey Stanford
Newcastle-under-Lyme School
Age range
2 - 18
Location
Mount Pleasant, Newcastle-Under-Lyme, Staffordshire, ST5 1DB, United Kingdom
Head’s name
Michael Getty
North London Collegiate School
Age range
4 - 18
Location
Canons, Canons Drive, Edgware, Middlesex, HA8 7RJ
Head’s name
Vicky Bingham
Norwich High School for Girls
Age range
3 - 18
Location
95 Newmarket Rd, Norwich, NR2 2HU, United Kingdom
Head’s name
Jane Prescott
Norwich School
Age range
4 - 18
Location
71a The Close, Norwich, NR1 4DD, United Kingdom
Head’s name
Steffan Griffiths
Notting Hill and Ealing High School
Age range
4 - 18
Location
2 Cleveland Road, Ealing, London, W13 8AX, United Kingdom
Head’s name
Allison Saunders
Nottingham High School
Age range
4 - 18
Location
Waverley Mount, Nottingham, NG7 4ED, United Kingdom
Head’s name
Andrew Holman
Oakham School
Age range
10 - 18
Location
Chapel Close, Oakham, Rutland, LE15 6QT, United Kingdom
Head’s name
Henry Price
Oban High School
Age range
Location
Oban High School, Soroba Road, Oban, UK
Head’s name
Peter Bain
Oporto British School
Age range
3 - 18
Location
Rua da Cerca, 338 Foz do Douro, Porto, Portugal
Head’s name
Nick Sellers
Oswestry School
Age range
4 - 18
Location
Upper Brook Street, Oswestry, Shropshire, SY11 2TL, United Kingdom
Head’s name
Peter Middleton
Oundle School
Age range
11 - 18
Location
Great Hall, Oundle, Peterborough, PE8 4GH, United Kingdom
Head’s name
Dominic Oliver
Pangbourne College
Age range
11 - 18
Location
Pangbourne, Reading, Berkshire, RG8 8LA, United Kingdom
Head’s name
Oliver Knight
Peponi School
Age range
13 - 18
Location
Off Thika Rd, Ruiru, Kenya
Head’s name
Mark Durston
Peterhouse
Age range
4 - 18
Location
P. Bag 3741, Marondera --263, Zimbabwe
Head’s name
Jonathan Trafford
Pipers Corner School
Age range
4 - 18
Location
Pipers Lane, Great Kingshill, High Wycombe, HP15 6LP
Head’s name
Helen Ness-Gifford
Plymouth College
Age range
3 - 18
Location
Ford Park, Plymouth, Devon, PL4 6RN, United Kingdom
Head’s name
Peter Watts
Pocklington School
Age range
2 - 18
Location
West Green, Pocklington, East Yorkshire, YO42 2NJ, United Kingdom
Head’s name
Rebecca Lovelock
Princethorpe College
Age range
11 - 18
Location
Princethorpe, Rugby, Warwickshire, CV23 9PX, United Kingdom
Head’s name
Ed Hester
Prior Park College
Age range
11 - 18
Location
Ralph Allen Drive, Bath, Banes, BA2 5AH, United Kingdom
Head’s name
Ben Horan
Putney High School
Age range
4 - 18
Location
35 Putney Hill, London, SW15 6BH, United Kingdom
Head’s name
Jo Sharrock
Pymble Ladies’ College
Age range
Location
Avon Road Pymble NSW Australia
Head’s name
Kate Hadwen
Queen Anne’s School
Age range
11 - 18
Location
6 Henley Road, Caversham, Reading, RG4 6DX, United Kingdom
Head’s name
Elaine Purves
Queen Elizabeth Grammar School
Age range
7 - 18
Location
154 Northgate, Wakefield, WF1 3QX, United Kingdom
Head’s name
Richard Brookes
Queen Elizabeth’s Hospital
Age range
7 - 18
Location
Berkeley Place, Clifton, Bristol, BS8 1JX, United Kingdom
Head’s name
Rupert Heathcote
Queen Elizabeth’s School, Barnet
Age range
Location
Queen's Road, Barnet, Hertfordshire, EN5 4DQ
Head’s name
Neil Enright
Queen’s College
Age range
0 - 18
Location
Trull Road, Taunton, TA1 4QS, United Kingdom
Head’s name
Julian Noad
Queenswood School
Age range
11 - 18
Location
Shepherd's Way, Hatfield, Hertfordshire, AL9 6NS, United Kingdom
Head’s name
Jo Cameron
Ratcliffe College
Age range
3 - 18
Location
Fosse Way, Leicester, Leicestershire, LE7 4SG, United Kingdom
Head’s name
Jonathan Reddin
Reading Blue Coat School
Age range
11 - 18
Location
Sonning Lane, Sonning, Reading, Berkshire, RG4 6SU, United Kingdom
Head’s name
Peter Thomas
Redmaids’ High School
Age range
7 - 18
Location
Westbury-on-Trym, Bristol, BS9 3AQ, United Kingdom
Head’s name
Paul Dwyer
Reed’s School
Age range
11 - 18
Location
Sandy Lane, Cobham KT11 2ES, United Kingdom
Head’s name
Mark Hoskins
Reigate Grammar School
Age range
11 - 18
Location
Reigate Road, Reigate, Surrey, RH2 0QS, United Kingdom
Head’s name
Shaun Fenton
Rendcomb College
Age range
3 - 18
Location
Rendcomb, Cirencester, Gloucestershire, GL7 7HA, United Kingdom
Head’s name
Andy Murphy