The Headteacher is Stephen Derry supported by Executive Head and Director of School Improvement at the Greenshaw Learning Trust, Izzy Ambrose.

The new proposed school would have been a partnership between Academies Enterprise Trust and Gloucestershire County Council[5] Malcolm Reeve on behalf of AET initially spoke of the plans for the new school to work closely with Millbrook,[6] but AET was then banned by the Department for Education from expanding until it could raise standards in the Academies which it already had.

He had previously worked at Yate International Academy[12] In October 2015 Libby Nicholas, the AET Southern Regional Director of Education wrote to parents to confirm that the new Principal from January 2016 would be Lesley Moule, supported by Dean Anderson as Executive Principal (From Sept 2015).

[14] Noted alumni include English actor, comedian, screenwriter, and producer Simon Pegg.

[15] This table shows data marked in darker grey which relates to the period of time before the school became an AET Academy.

Millbrook Academy continues to offer a curriculum that enables students to flourish and to achieve their full potential.

While inspectors saw examples of good and elements of outstanding practice, this is not prevalent across the school and, as a result, students' progress in some lessons is limited.

Those students showing poor behaviour were often unclear about what they were meant to be doing; had difficulty with the work because, for example, their low reading ages had not been taken into account; or were responding to provocations from other students that had not been dealt with effectively by the teacher[26] In 2015 the Regional Schools' commissioner wrote to Ian Comfort the CEO of Academies Enterprise Trust stating that the educational standards are unacceptably low at Millbrook Academy.

[28] Parents interviewed by the local media expressed concerns about exam results and other aspects, statingIt is not just these figures that are a growing concern, it is the amount of supply teachers that my child has had and the behaviour is appalling with swearing and generally unruly behaviour.

"[29] In December 2015 a teacher of the academy spoke out in public about poor standards, stating We're disappointed the results are catastrophically bad again, but we as a staff we knew it was going to happen... Children's chances of a better life are being ruined.

In June 2022 Henley Bank High School was inspected by Ofsted under Section 5 of the Education Act.