JCA Staff Bookmark and Share

Principal Consultant and Managing Director



Jonathan Cocking

FRES 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. He has since developed JCA's portfolio of services and its extensive client base. Jonathan is a Chartered Biologist, a Chartered Arboriculturalist and an Expert Witness with much experience of litigation work.

Technical Coordinator



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 Lancashire. A former JCA team leader and Consulting Arboriculturist, Toby was promoted to Technical Coordinator and now oversees all office and on-site activities at JCA and is on hand to offer technical support and advice.

Consulting Staff



Andrew Bagshaw

FdSc Arb. TechArborA

Andrew joined JCA in 2005 having gained several years experience in tree surgery and landscaping. He is trained in aerial rescue and is JCA's principal first aid person. He is currently working towards a degree in Arboriculture at the University of Lancashire.

Adam Winson

Chartered Arboriculturist, MSc, BSc (Hons), ND, MICFor, AIEEM.

Adam has extensive experience in arboriculture, having worked with trees for over 15 years. In 2010 Adam obtained an MSc in Arboriculture and Urban Forestry (with distinction), also gaining the top student award. Adam has had articles published in industry magazines including original research in a peer reviewed UK Forestry Commission publication in 2012.

Robert Godwin

BA (Hons) Landscape Planning, MArborA

Robert is a Professional Member of the Arboricultural Association and a Professional Associate of the Institute of Chartered Foresters. He has a degree in Landscape Planning & Management and has several years experience as a Consulting Arboriculturist. Robert is currently working towards an MSc in Arboriculture and Urban Forestry.

Victoria Black

FD Arboriculture

Victoria has been with JCA since 2002 building her knowledge of the Arboricultural business, and has recently attained her foundation degree in Arboriculture at the University of Lancashire.

Andrew Bussey

Andrew joined JCA having spent 12 years doing tree surgery for various private companies and a Local Authority. He has various NPTC qualifications, is QTRA qualified and is currently studying for his Arboricultural Technicians Certificate.

Toby Parsons

Tech.Arbor.A

Toby joined JCA in 2008 after spending 6 years working as a senior climber for various Arboricultural contractors in the East Midlands and the South-West. He recently gained the Level 3 Technicians Certificate in Arboriculture, is QTRA qualified and is a member of the Arboricultural Association at technicians level.

Christopher Shaw

BSc Biol. (Hons). GradIEEM.

Chris is our in-house Ecologist, and joined JCA in 2010 after achieving a First Class degree in Biology at the University of Leeds. Prior to joining JCA, Chris has volunteered with a number of organisations including the Yorkshire Wildlife Trust, BTCV and a local Ecological Consultancy. He is currently undertaking a 'Certificate in Ecological Consultancy Course' with Acorn Ecology. Chris is actively involved in building JCA's portfolio of ecological services.

Phil Humeniuk

FdSc (Arboriculture)

Phil has recently joined JCA having spent 3 years working for various tree surgery companies and as a Tree Officer for a Local Authority. He obtained his foundation degree in Arboriculture at the University of Central Lancashire, and is a Lantra qualified tree inspector.

Raphael Skerratt

BSc Forestry FArborA

Raphael covers the London area for JCA. He ran his own Arboricultural businesses since 1972 and is experienced in tree surveys for development, safety and subsidence purposes, and is an Expert Witness.

Graham King

Dip Arb (RFS) FArborA MRAC

Graham covers the Midlands for JCA. He ran his own arboricultural business from 1980 before gaining his Diploma in 1992 and is a Fellow of the Arboricultural Association.

Simona Ferutta

MSc Forestry and Environmental Sciences

Simona achieved her Msc in Forestry and Environmental Sciences at the University of Turin, Italy in 1996. She has recently joined JCA after several years in forest, crops and tree care in Italy as a professional.

Administrative Staff



Catherine Cocking

, Accounts Manager

Susan Guest

, Administrative Team Leader

Yasmin Shahzad

, Administrative Assistant

Sally Whitwam

, BA (Hons), Administrative Assistant & Marketing

Liz Bone

, Administrative Assistant

Simeon Haigh

BSc (Hons), IT Officer