Academy trusts: K
- Kaleidoscope Learning Trust (1 school)
- Kaleidoscope Multi Academy Trust (7 schools)
- Katharine Lady Berkeley's School (1 school)
- Kendrick School (1 school)
- Kenilworth Multi Academy Trust (2 schools)
- Kenningtons Primary Academy (1 school)
- Kensington Aldridge Academy (1 school)
- Kent Catholic Schools' Partnership (33 schools)
- Kent Special Educational Needs Trust (KSENT) (11 schools)
- Kernow Learning Multi Academy Trust (21 schools)
- Kesteven and Grantham Girls' School Academy Trust (1 school)
- Keswick School Multi Academy Trust (2 schools)
- Keys Academies Trust (5 schools)
- Keys Co-Operative Academy Trust (3 schools)
- Keystone Academy Trust (7 schools)
- Kibblesworth Academy (1 school)
- Kilton Thorpe Specialist Academy (1 school)
- King Alfred Trust (2 schools)
- King Edward Vi Academy Trust Birmingham (12 schools)
- King Edward Vi Education Trust (1 school)
- King Edward Vi Grammar School, Chelmsford (1 school)
- King Ina Church of England Academy (1 school)
- King James's School (1 school)
- King William Street CE Primary School (1 school)
- King's Cross Academy Trust (1 school)
- King's Group Academies (15 schools)
- Kingfisher Learning Trust (7 schools)
- Kingfisher Schools Trust (7 schools)
- Kings Academy Trust (6 schools)
- Kings Education Trust (4 schools)
- Kings Langley School (1 school)
- Kingsbridge Educational Trust (7 schools)
- Kingsbury High School (1 school)
- Kingsleigh Primary School (1 school)
- Kingsley Learning Foundation (2 schools)
- Kingsmead School (1 school)
- Kingston Educational Trust (2 schools)
- Kingston Maurward Studio School Limited (1 school)
- Kingstone Academy Trust (2 schools)
- Kingsway Community Trust (3 schools)
- Kirby Muxloe Primary School (1 school)
- Kirkbie Kendal School Academy Trust (1 school)
- Kirkby La Thorpe Church of England Primary Academy (1 school)
- Kisharon Academy Trust (1 school)
- Knightsfield School (1 school)
- Knowle Church of England Primary Academy (1 school)
- Knowledge Schools Trust (9 schools)
- Koinonia Academies Trust (1 school)
Ofsted data as at 30 September 2026, school details from Get Information about Schools, 26 October 2026.