Who We Are

hannahDr Hannah Burgon PhD, MA DipSW, MSc, BSc, Cert in Counselling, Cert in Riding Therapy (CEO and Founder)
Hannah is a qualified Social Worker and has completed training in Riding Therapy and Equine Facilitated Learning. She also holds a Certificate in Counselling, and has a PhD into the benefits of Equine-Assisted Therapy & Learning from Cardiff University. Her book ‘Equine-Assisted Therapy and Learning with At-Risk Young People’ was published by Palgrave Macmillan in 2014.


Shaun Dérioz (co-founder)
Shaun is Hannah’s husband and a co-founder of Sirona. As well as being our fabulous photographer, providing promotional material and media support, he works tirelessly behind the scenes to maintain the grounds at Sirona and helps to look after the needs of our horses and ponies.





Josie Arscott, BA English and American Literature. Advanced Diploma in Humanistic Counselling. Certificate in Affective Neuroscience and Attachment Theory (Counsellor and Communications and Marketing Officer)
Horses have been a huge part of Josie’s life growing up. She recognised the power of the relationship that can develop between people and these wonderfully perceptive animals. Josie is also a qualified counsellor and values the opportunity that Sirona offers in bringing these two aspects of her life together.


emma 3Emma Matsambanye – Dip. In Counselling, BA (Hons) Steiner/Waldorf Education, MBACP (Counselling)
Emma has worked with children and young people for over 20 years. She has taught young people in schools and colleges for deprived families in Africa , and as a learning mentor in primary schools in the UK supporting and teaching children with emotional, behavioural and learning difficulties. She has a particular interest in child development research and is enthusiastic about combining it with her love of working with horses.

Sally Croft; Treasurer
Sally Croft is a retired chartered accountant with many years of experience working with small charities, social enterprises and businesses. She worked with Ernst & Young as the changes took place in Eastern Europe. Now semi-retired Sally is working with small charities and social enterprises mainly in the local community. She sits on the boards of both a charity and a small company.


Our team hold a wide range of skills and qualifications and include:

Angie Whitehead
Certificate in Education and Training, Forest School leader,  Certificate in Therapeutic Skills for Outdoor Leaders. (approved Practitioner through the Therapeutic Forest  CIC), Certificate in Counselling & Safeguarding Officer
Education Coordinator & Equine-Assisted Practitioner
Angie has worked with Children and Families for over 20 years and specialised in working with young people with disabilities, behavior and learning needs.  Angie has a life-long association with horses, training young horses for riding and driving.

Catherine Elson- Equine Project Worker

National Certificate in the management of horses, Qualified Equine Veterinary Nurse and Trust Technique Practitioner: teaching owners and animals’ mindfulness.                              

Catherine is our Equine Project Worker who looks after the horses and ponies on a daily basis. She has always loved being around horses since a young age. She has 8 years’ experience working with horses in Thoroughbred and Arab studs and 6 years’ experience working in the veterinary industry nursing horses. At home her 8 month old puppy ‘Laila’ keeps her busy.

Zoe Hayter BHSAI
Zoe works as a Freelance Riding Instructor at Sirona. She has a foundation degree in equine sports performance and coaching and owns her own horses whom she competes mainly in dressage.




Charlotte Walker BSc Occupational Therapist
Charlotte is a qualified Occupational Therapist and Playworker with experience in supporting people with physical and learning disabilities and mental health challenges to enjoy the outdoors. Horses and nature have been a huge part of Charlotte’s life and she has a passion for the unique therapeutic opportunities they offer.



IMG_1072Natalie (Nat) Torr – BA (Hons) QTS

Nat is a qualified teacher and has ridden & worked with horses for over 35 years. She worked for many years training feral Dartmoor ponies and so loves bringing elements of horse psychology & trust-based training to her work with young people. More recently Nat has qualified as a Trauma & Tension Release Exercise practitioner (TRE) and has a real interest in the nervous system and how to support people to self-regulate, especially in nature and with horses. Nat also loves bringing elements of play into her sessions with the horses and the young people we work with.

Jane Hughes (Clin Psych) BA MA MSc

Jane has been working with children and their families as a Child Clinical Psychologist for over 30 years. This work has been within the NHS in hospital settings, in schools or in people’s homes. Jane’s involvement with Sirona and Equine-Assisted Therapy is an opportunity to work with young people and their families in a different way, with the help of the wonderful animals and people. Jane has four grown up children and for part of their growing up she had horses on the farm. Helping her oldest daughter work with her ponies, using natural horsemanship methods, gave Jane a deeper understanding of the psychology of horses, a desire to develop ideas around psychotherapy and working with horses.

Kate Ford – BA (Hons) Social Work – Level 2 Apprentice (Equine Groom)        

Kate has returned to Sirona, after 4 years in Bristol working with young people experiencing homelessness, as our  Level 2 Equine Groom Apprentice. Kate is passionate about the positve effect being in the natural environment and particularly around horses, can have on mental health and overall wellbeing.


Cora Willingham- Level 3 Apprentice (Equine Groom) 

Cora found her love for horses at the age of 12 when she began riding at Oaklands Riding Centre, Exeter. She has worked part time at a local equine rehabilitation yard and also helped out at a local Pony Club for young people. She has completed her Levels 1 & 2 in Equine Studies at Bicton College and joined the Sirona team in October 2020 to start her Level 3 Senior Groom Apprenticeship.


Fanny and Toro 1Fanny Foo – Equine Worker

Fanny grew up on dartmoor with horses and she has always either worked with or somehow been lucky enough to keep in contact with horses in her daily life. As a mother of four, Fanny is passionate about working with young people and facilitating connections. Fanny has Shiatsu training, is a horticultural therapy facilitator at School Farm community garden and an aspiring potter who is keen to share her deep love for the natural world and the joy and healing that it brings.


Diane Cleave – P/T Administrator      

Diane is our part-time administrator who supports the Sirona team with their HR, IT and fundraising needs, as well as the general office organisation. Horses are her passion. She has three horses of her own and is always learning from them.




We also rely on fabulous volunteers such as Hesti, Lisa, Jan, Shirley, Louise, Sue B, Sue P, Amber P, Ann R, Laura, Rhiannon, Christina, Jane, David, John, Richard, Yuki and Nana and many more who bring support in all areas such as poo-picking the fields, admin, running our website (thank you Lea!), producing our annual review (thank you John!) and support on sessions. Please contact us if you are interested in volunteering at Sirona to see what vacancies we have available.


Sarah Urwin; Chair and Health & Safety Lead

Reg. MBACP (Accred) Counsellor/Psychotherapist. BSc., Adv. Dip. Couns., Dip. Supervision, RMA, FdA(HCare), EAGALA Cert. Member HETI (Horses in Education & Therapy), Member Social Farms & Gardens. Sarah has a background in local government as well as agricultural management and training. However in the past seventeen years she has worked in Health and Social Care, ultimately as a Counsellor/Psychotherapist, latterly using Equine and Animal Assisted Therapy as an intervention. Sarah is a Supervisor and Trainer of practitioners across the UK and is passionate about this work, a fact which is often commented upon by her students and supervisees!

Laurel Ellis; Social Work & Landscaping
BA Hons Geography, Diploma in Counselling in the Development of Learning, Certificate in Transactional Analysis, MA Social Work, Dip SW, NVQ3 Certificate in Sustainable Horticulture. Laurel worked as a Health/HIV/Aids Advisor with North Devon District Hospital, and as a counsellor and therapist with the Exeter Mental Health team, before taking a Master’s degree in Social Work. Laurel has worked in Devon Children’s Services in assessment and safeguarding, as a supervising social worker in fostering, and a senior social worker with at-risk families in Torbay.
Following a private passion, Laurel re-trained in Horticulture and ran a therapeutic horticulture project in Totnes, while working in garden design and maintenance. Laurel co-founded a successful community enterprise – Food in Community CIC-which collects surplus organic food and redistributes it to vulnerable groups in the community.

Deirdre Ford; Deputy Safeguarding & Social Work
BA, MSc, CQSW  Deirdre is a registered social worker with a background in multidisciplinary teams supporting people who have learning disabilities and mental health problems. She has taught on social work programmes at the universities of Exeter and Plymouth, and has worked extensively with service user and carer groups in education and practice.


Sarah Matthews; Education
BA (hons) MA, PGCE, PgDipPsych Sarah began teaching English and Drama 23 years ago. She  became increasingly drawn to working with vulnerable young people in various settings including family intervention, as well as teaching in special and hospital schools, focussing on young people with mental health issues, medical needs and autism. As well as supporting therapeutic horsemanship for its enormous potential for humans, she is also passionate about giving healing to horses themselves.  She has recently qualified as an Equine Healer.

IMG_4377Rowan Lawrence – HR
Rowan has worked in HR for over 16 years working within businesses to create and establish successful HR functions, with a focus on providing the best employee experience and growing the business. Rowan has a passion for supporting people, in and out of the workplace, and is now happy to be studying to become a Counsellor. A horse lover since childhood, she is excited to be able to combine her professional and personal experiences in this role. 




Nicholas  Evans                                                                         Author of the bestselling novel ‘The Horse Whisperer’
“When I was researching The Horse Whisperer, I became aware of the astonishing transformative effect horses can have on young people who, for various reasons, are finding life difficult. Since then I have been looking for an organisation that uses human/horse contact to build self-confidence and trust. And now, right on my doorstep, here is Sirona. I’m really thrilled and honoured to be involved.”

Lucy Rees
Lucy is a renowned  horse trainer, equine ethologist and author of the acclaimed book ‘The Horses’ Mind’. We are privileged to have Lucy as a patron of Sirona and hope that she will come over from Spain to give us many more training clinics in the future.



Heather Moffett
Heather is an international specialist teacher of the Classical Seat, and author of the book ‘Enlightened Equitation’. Heather is well known  for her innovative saddle designs and  a great believer that the seat is the foundation of everything in riding. Horse welfare is dear to her heart and she has campaigned for better riding for the last 4 decades.