At JCA, we have a specialist team of personnel that each specialise in the different areas that we offer services in. Want to find out more about our team before you get in touch? Here is a bit of information about all our members.
Meet The Team
Principal Consultant and Managing Director
Jonathan Cocking
F.R.E.S., Tech. Cert. (Arbor.A), PDipArb (RFS) FArborA CBiol MSB. MICFor. Jonathan is a Registered Consultant and Fellow of the Arboricultural Association and sits on its Professional Committee. He has 31 years experience in the Arboricultural profession and served for eight years as Senior Arboriculturist with a large local authority before establishing JCA in 1997. Jonathan has since developed JCA’s portfolio of services and its extensive client base. He is a Chartered Biologist, a Chartered Arboriculturalist and an Expert Witness with much experience of litigation work.

Technical Director

Toby Thwaites
BSc (Hons), HND (Arboriculture). Toby joined JCA in 1998 after graduating in Ecology at the University of Huddersfield and has since graduated in Arboriculture at the University of Central Lancashire. A former JCA team leader and Consulting Arboriculturist, Toby is now Technical Director and oversees all office and on-site activities at JCA and is on hand to offer technical support and advice.
Operations Director
Charles Cocking
FdSc (Arboriculture), MArborA. Charles joined JCA in January 2014 as an Apprentice having previously worked for the company on a part time basis during 2013. Charles obtained his Foundation Degree in Arboriculture at Askham Bryan College, York and is now Director of Operations at the company. His roles include contract, staff and cash management, whilst focusing on general business growth and offering support to both Managing and Technical Directors.

Consulting Staff: Arboriculture
Andrew Bussey
LANTRA Accredited PTI. Andrew joined JCA having spent 12 years working as a tree surgeon for various private companies and a Local Authority. He has various NPTC qualifications, is QTRA qualified and has a LANTRA certificate in Professional Tree Inspection.


Emily Wilde
FdSc (Arboriculture). Emily joined JCA having previously worked for various private tree surgery and consultancy companies over the past 8 years. She initially obtained a ND in Forestry and Arboriculture, followed by a FdSc in Arboriculture at Askham Bryan College, York. Emily has various NPTC certificates and is QTRA qualified.
Mick Eltringham
ND (Forestry). Mick joined JCA after spending 12 years working in the industry for various private companies in the north and south of England. He has also spent the last five years working as a consultant for two canopy research projects in the Amazon Rainforest, working with Oxford University and the University of Arizona. He has various NPTC Qualifications.


Dan Kemp
FdSc (Arboriculture). Dan joined JCA with nearly 30 years’ experience in arboriculture. He worked as a London Tree Officer for 12 years and in several arboricultural and horticultural management posts, specialising particularly in tree risk assessments and tree related subsidence.
Luke Wickham
FdSc (Arboriculture and Urban Forestry). Luke joined JCA in 2021 after obtaining his Foundation Degree in Arboriculture and Urban Forestry at Askham Bryan College. Having previously worked within the industry for the past 4 years, running his own small business and sub-contracting for local firms, Luke brings a sound knowledge and understanding of the practical and academic sides of the industry.


Andy McPhaden
BSc (Hons). Andrew joined JCA in 2022 having spent 5 years working as an Arborist for various private companies in both the UK and Germany. During his time abroad he obtained the European Tree Worker Certification along with a tree inspector certification from the Forschungsgesellschaft Landschaftsentwicklung Ladschaftsbau. He brings a strong understanding of the practical sides of the industry and holds various NPTC qualifications.
Principal Ecologist
Adam West
BSc (Hons) Animal and Wildlife Management. DBS checked. Adam joined JCA to lead the expanding ecology department. Having returned to education as a mature student, Adam studied Countryside Management for two years before undertaking a bachelor’s degree in Animal and Wildlife Management, for which he was awarded First Class Honours. Adam has many years’ experience in ecological consultancy, working on projects ranging from individual planning applications to national infrastructure projects. Adam holds a Natural England Level 1 great crested newt survey class licence, a Natural England Level 2 bat survey class licence (and the Scottish and Welsh equivalents) and a CSCS card. Adam is a member of CIEEM.

Consulting Staff: Ecology

Audrey Bourdais Paull
BSc (Hons) Zoology. Audrey joined JCA in 2022 after graduating in Zoology from the University of Leeds. Audrey volunteered for many years with various wildlife conservation and rescue organisations, as well as working on various projects to develop a variety of field survey techniques, report writing and data analysis skills. Audrey is looking forward to developing her ecology consultancy experience with JCA, as well as combining her previous dog training and detection work with ecology to expand into ecology detection dogs.
Amy Donaldson
Bsc (Hons) Zoology (International). Amy joined JCA in 2022 after graduating with a First Class Honours from the University of Leeds. Amy volunteered for numerous years with the Northumberland Wildlife Trust to develop a variety of field surveying skills. In 2020 Amy began bat surveying, where she gained practical knowledge and experience in the field. Amy is looking forward to developing her report writing and data analysis skills with JCA, and is hoping to get her Level 1 bat survey class licence soon.


Eve Goodwin
BSc (Hons) Plant Biology. Eve gained her Royal Society of Biology accredited undergraduate degree in 2019 from Aberystwyth University in Plant Biology. She has good plant identification skills which were developed through her academic studies and field work. She has since worked as a CAD technician and has joined JCA in 2022 where she hopes to develop her field skills further.
Other Team Members

Accounts Manager
Catherine Cocking

Administrative Assistant
Lorraine Spink

Marketing Manager
Lisa Beedham

Credit Controller
Kelly Saunders

IT Officer
Adie Gray