| St Bede's Catholic College | Bristol, BS11 0SU | 1 | 1 |
| St Bede's Inter Church School | Cambridge, CB1 3TD | 1 | 1 |
| St Benedict Catholic Academy Trust | Croydon, CR0 2RD | 10 | 20 |
| St Bernard's High School | Westcliff-On-Sea, SS0 7JS | 1 | 2 |
| St Catherine's Catholic Primary School (academy) Swindon | Swindon, SN2 7LL | 1 | 2 |
| St Catherine's Catholic School | Bexleyheath, DA6 7QJ | 1 | 1 |
| St Chad's Academies Trust | Walsall, WS2 8NF | 19 | 23 |
| St Chad's Catholic Primary School | London, SE25 6LR | 1 | 1 |
| St Christopher's C of E (primary) Multi Academy Trust | Exeter, EX2 4NQ | 21 | 16 |
| St Clare Catholic Multi Academy Trust | Sheffield, S9 3WU | 13 | 18 |
| St Cuthbert's Roman Catholic Academy Trust | Hull, HU6 7TN | 15 | 13 |
| St Cyprian's Greek Orthodox Primary Academy | Thornton Heath, CR7 8DZ | 1 | 5 |
| St Eanswythe's Church of England Primary School | Folkestone, CT20 1SE | 1 | 2 |
| St Edmundsbury and Ipswich Diocesan Multi-academy Trust | Ipswich, IP1 1UQ | 21 | 27 |
| St Edward's Church of England Academy Trust, Leek | Leek, ST13 8DN | 1 | — |
| St Francis Catholic Multi Academy Trust | Rotherham, S60 2EN | 14 | 20 |
| St Francis of Assisi Catholic Academy Trust | Bishop's Stortford, CM23 2NQ | 9 | 12 |
| St Gabriel the Archangel Catholic Multi-academy Trust | Cheadle, ST10 1LH | 63 | 88 |
| St George's Academy Trust | Sleaford, NG34 7PP | 1 | 2 |
| St George's School, Harpenden Academy Trust | Harpenden, AL5 4TD | 1 | — |
| St Gregory the Great Catholic Academy Trust | Leeds, LS7 4AW | 9 | 20 |
| St Helen's Catholic Junior School Academy | Brentwood, CM15 9BY | 1 | 2 |
| St Jerome Church of England Bilingual Primary School | Harrow, HA1 2DJ | 1 | 1 |
| St John the Baptist Catholic Multi Academy Trust | Norwich, NR1 3PB | 12 | 10 |
| St John's (ce) Primary Academy Trust, Clifton | Brighouse, HD6 4HP | 1 | 1 |
| St John's Academy Trust | Wallingford, OX10 9AG | 1 | 1 |
| St John's Church of England Primary School Maidstone | Maidstone, ME14 5TZ | 1 | — |
| St John's Church of England Primary School, Rishworth | Sowerby Bridge, HX6 4QR | 1 | — |
| St John's Church of England Primary School,sparkhill | Birmingham, B11 4EA | 1 | 1 |
| St Joseph Catholic Multi Academy Trust | Liverpool, L3 1BY | 10 | 18 |
| St Joseph's Catholic College | Swindon, SN3 3LR | 1 | 2 |
| St Joseph's College Delasalle | London, SE19 3HL | 1 | — |
| St Joseph's Primary School, A Catholic Voluntary Academy | Sheffield, S13 9AT | 1 | 2 |
| St Lawrence Academies Trust Ltd | Kirmington, DN39 6YP | 4 | 8 |
| St Luke's Church of England School | London, NW3 7SU | 1 | 2 |
| St Margaret's Academy | Torquay, TQ1 4PA | 1 | 1 |
| St Mark's Church of England Primary School | Bournemouth, BH10 4JA | 1 | 4 |
| St Martin's Multi Academy Trust | Bilston, WV14 8BS | 4 | 6 |
| St Mary's Anglican Academy | Stoke-On-Trent, ST6 5DE | 1 | — |
| St Mary's Catholic High School Academy Trust | Chesterfield, S41 8AG | 1 | 1 |
| St Mary's Catholic Primary School | Beckenham, BR3 5DE | 1 | — |
| St Mary's Catholic Primary School (academy Trust), Swindon | Swindon, SN2 1PE | 1 | 1 |
| St Mary's Catholic Primary School, Churchdown | Gloucester, GL3 1HU | 1 | — |
| St Mary's Catholic Primary Schools Trust | Croydon, CR0 2AQ | 2 | 2 |
| St Mary's CE Academy, Cheshunt | Cheshunt, EN7 5FB | 1 | 4 |
| St Mary's Church of England Academy Trust | Bury St Edmunds, IP28 7LR | 1 | 3 |
| St Mary's Church of England Academy, Stotfold | Hitchin, SG5 4DL | 1 | 1 |
| St Mary's Church of England Primary Academy, Dilwyn | Hereford, HR4 8HR | 1 | — |
| St Mary's Church of England School, Norwood Green | London, SW1P 4AU | 1 | 1 |
| St Mary's Church of England VA Primary Academy | Kettering, NN16 0JH | 1 | — |