Meet the Team
First Bridge’s dedicated team brings together a wealth of global experience. Our professionals come from a variety of backgrounds including healthcare, psychology education and particularly Applied Behaviour Analysis (ABA). Together our team works together to give each child in our care the best possible outcomes.
Our Management & Advisory Team

Sasha Zerkalova
Founder & CEO
Sasha is a former M&A advisor and mother of a child with ASD. She has lived the parental challenge of successfully educating her child with an interdisciplinary early intensive intervention (ABA) approach. She has been actively working in the field of ABA in the UK, Canada and the US for eight years.
“Founding First Bridge Centre began with my family’s personal journey with autism. Before First Bridge Centre was formed, there was no centralised setting in the UK, that provided clear, structured, high-quality therapy and education to children with autism from the early age of 14 months in a centre-based setting required to deliver therapy with high fidelity and consistency of learning that a home-based therapy setting can never achieve.
I am resolved to continue to build out FBC to further address the UK’s deficit of early intervention and to provide a solution to thousands of families and empowering them to finally have a choice of evidence-based services and a fresh start despite a difficult beginning of their child’s life. I want to see the UK, where children with a developmental conditions can realise their amazing potential.”

Mikaela Green
School Principal & Clinical Director
Mikaela is a highly experienced, energetic and passionate BCBA® who has dedicated the last 20 years of her life to the field of Applied Behaviour Analysis, specifically its application to education and early childhood develeopment, in schools and home-based settings.
Mikaela served for four years on the Board of the UK Society for Behaviour Analysis (UK-SBA) working to disseminate behavioural science and its effective, safe and ethical application across the UK. She has extensive experience in multi and interdisciplinary working, and supporting families with all aspects of Education Health and Care Plan acquisition and maintenance.

Sigmund Eldevik
Research Director
Sigmund is an associate Professor at Oslo Metropolitan University, Department of Behavioral Science.
He leads worldwide research in the field of EIBI and teaches behaviour analysis, early intervention for children with autism and developmental psychology.
He is a clinical psychologist from the University of Oslo and a BCBA-D®.

Kenny Valentine
Non-Executive Director
Over 15 years leadership experience in the health care sector, more recently including involvement in “early years”.
An experienced operator and M&A professional who has led rapid multi-site growth and worked at Board level with Bupa and Colosseum Dental. He currently holds Non-Executive positions with Portman Dental and N Family Club, an OFSTED registered early years provider.

Richard LeRoy
Executive Head
Rich has been working within the Special Educational Needs sector for over 20 years and since becoming a qualified teacher in 2009 he has endeavoured to teach pupils with additional needs a meaningful curriculum that will help them long term. He has been working in ABA schools since 2011 and has held various leadership positions since 2015.
Rich is passionate about ensuring that all pupils are able to engage in their learning and are allowed the opportunity to become the best version of themselves that they can.
Our Centre Team

Andreea Istrate
Clinical Lead
Andreea is an energetic and devoted BCBA® who is passionate about helping children with autism and re- lated conditions achieve their potential.
She trained at an ABA school in London and has worked in the field since 2014, in various settings and with differently able children.

Sharon Chung
Clinical Supervisor
Sharon is an experienced clinician who has worked in intensive early intervention since 2018.
She has a Masters degree in Child Development from UCL and has completed her Certification Programme in Applied Behaviour Analysis from Florida Institute of Technology.
Sharon is particularly interested in teaching functional play, independence and socially significant skills, to improve the lives of the children she works with.

Jocanne Nichols
Clinical Supervisor
Jocanne is an Applied Behaviour Analysis Masters graduate with a specific interest in Early Intensive Behavioural Intervention.
Jocanne is passionate about help both neurodiverse and neurotypical children develop important functional skills that promote school-readiness and independence.

Georgia Hooker
Trainee Clinical Supervisor
Georgia has been supporting young children with autism in the field of Applied Behaviour Analysis since 2020.
She has an undergraduate and masters degree in psychology and is currently completing her certificate in ABA at The Tizard Centre, University of Kent.
Georgia is interested in teaching social and functional play skills, developing children’s exploration and interests whilst providing opportunities to teach independent skills to help the children and parents to thrive

Shriya Phatak
Trainee Clinical Supervisor

Hidy Yip
Teacher
Hidy has over 10 years of experience working with young children and has specialised in Applied Behaviour Analysis (ABA) since 2019. She holds a degree in Early Childhood Education from the University of Portsmouth and has recently achieved Qualified Teacher Status.
She began her ABA career in a dedicated centre in Hong Kong and has since worked in nursery and school settings across Northern Ireland, England, and Hong Kong. This diverse background gives her valuable insight into supporting children with different needs and learning styles.
Hidy joined First Bridge Education in 2021 and is passionate about early intervention, using ABA principles to help children develop essential social and communication skills. She particularly enjoys teaching group learning and creating structured, supportive, and engaging environments where every child can thrive and reach their full potential.

Rainbow Ng
Trainee Teacher
Rainbow holds a Master’s degree in Developmental Psychology and has been supporting young children with autism since her university studies. Her academic background and hands-on experience give her a strong understanding of child development and the unique learning needs of neurodivergent children.
Rainbow is passionate about becoming a teacher and has begun the process of gaining her Qualified Teacher Status (QTS). She believes that education has the power to transform lives and shape young minds. At First Bridge Education, Rainbow applies a compassionate and inclusive approach, dedicated to helping every child build confidence, develop essential skills, and reach their full potential.

Kasia Skowronska
General Manager

Cassie Thomas
Admission & Partnership Manager
Cassie is a qualified teacher with extensive experience in Special Educational Needs. She previously worked for the Local Authority, writing EHCPs and securing placements, which gave her valuable insight into LA processes.
Cassie is passionate about building strong relationships across education and related sectors, guiding families through the admissions process, and championing the transformative provision her school offers.

Bash Nawaz
Recruitment Manager
Bash joined First Bridge Education in July 2024 as a Recruitment Manager. With over six years of experience in recruitment and HR/compliance management, he is responsible for developing and leading our in-house talent acquisition and compliance processes. His focus is on implementing effective recruitment strategies, optimising processes, and supporting workforce planning to attract and hire top-tier talent.
Outside of work, he is passionate about contributing to meaningful causes and enjoys taking on challenges that promote personal growth and self-development.
“We support each other in the same way that we support our children. There’s a real element of working together as a team to make sure that we get the best outcomes for the children.”