Partnership Directory
NAISA’s Partnership Directory brings together individuals and organisations with expertise, products and services that are directly relevant to non-association independent schools.
We are selective about who we work with. Our partners understand the distinctive context, pressures and responsibilities faced by schools in this sector, and offer support that can add genuine value to the NAISA community.
MDA Education Leadership Ltd
Independent consultant
Mark is a passionate education professional with over 30 years’ experience in the sector. He is deeply committed to ensuring that all pupils, particularly the most disadvantaged, receive the highest quality support and achieve success in life.​ He brings extensive leadership experience, including 10 years as a headteacher, where he developed a strong understanding of the challenges faced by school leaders. Under his leadership, schools improved from inadequate to good, with elements of outstanding practice. He later served as a director within a multi-academy trust and as a local authority adviser, with responsibility for supporting over 60 schools. Through his work as one of His Majesty’s Inspectors for Ofsted, Mark has developed a detailed understanding of the current inspection framework, the independent school inspection toolkit, and the independent school standards. He has led independent school inspections and pre-registration inspections, as well as carrying out monitoring visits.
Osprey Insurance Brokers Limited
Osprey Insurance Brokers are a specialist insurance partner to independent schools, SEND settings and alternative provision providers across the UK. We understand that these environments require more than a standard, off-the-shelf approach. Our focus is on delivering practical, tailored insurance solutions that reflect the real day-to-day risks schools face; from safeguarding and complex pupil needs through to property, liability and cyber exposures. We work closely with schools to reduce unnecessary premium spend, identify gaps in cover, and ensure they remain compliant and properly protected in an increasingly complex landscape. Our approach is built on clarity, care and long-term support, not just arranging cover, but being on hand when it matters most, particularly at claims stage.
Stephen Long
Educational Consultant
Stephen has 37 years’ experience of working in education as a teacher, senior leader, consultant and local authority senior education officer. For the past 13 years Stephen has been providing school improvement advice across to a wide range of schools and organisations, including ed tech companies both in the UK and internationally. As well as consultancy support, Stephen provides ongoing school improvement partner support to non-association independent schools, secondary schools, primary schools and academies. Stephen’s significant experience as a practising Ofsted inspector since 2017 ensures that he is fully up to date with inspection practice and developments in education. As a result, he is very proficient at supporting, validating and challenging schools’ self-evaluation processes. Stephen is also a specialist tutor for a small number of pupils with SEND, specialising in teaching core skills and electrical engineering through computer programming.
Marell Consulting Limited
Director & School Improvement Consultant
Ellen Mukwewa is the Director and Managing Consultant at Marell Consulting Limited, with over 24 years of experience in education. Originally trained as a Chemistry teacher, she has held a range of roles including senior leadership in an independent school. For the past half of her career, she has specialised as a School Improvement Consultant, working exclusively with independent schools inspected by Ofsted. Through rigorous monitoring and evaluation, she helps schools identify and standardise what works, while addressing areas for development using evidence-based approaches. With years of experience supporting independent schools, she is committed to ensuring that every aspect of provision is strengthened so that pupils receive the best possible education and schools remain inspection-ready at all times.​
