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Scarecrow Consultants Ltd. Staff


At Scarecrow Consultants Ltd, we pride ourselves on providing expertise in all aspects of MBSE. Our consultants are all acknowledged as being outstanding in the field of MBSE and have written more books on MBSE than any other organisation in the world.  

Principal Consultants


Jon Holt


Professor Jon Holt is a leading figure in the world of systems engineering and gained his PhD from Swansea in 1994. Jon is a Director for Scarecrow Consultants Ltd and has been working in the field of systems modelling for the last 20 years. Jon is an international award-winning public speaker and author. He is the author of fifteen books in the field of applied Model-based Systems Engineering. Jon is a Director and Principal Consultant for Scarecrow Consultants Limited, works in many industries and has applied his work in many disciplines. He is also a Fellow of both the IET and the BCS. Jon also holds a Chair in Systems Engineering at the UK Defence Academy and is the Technical Director of INCOSE UK.

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Simon Perry


Simon Perry holds Bachelors degrees from both the University of Leeds and the Open University. Since gaining his degree in Mathematics in 1986 he has spent nearly 30 years working in all aspects of software and systems engineering. Simon often speaks at systems engineering conferences and is the co-author of ten books in the field of applied Model-based Systems Engineering. Simon is a Director and Principal Consultant for Scarecrow Consultants Limited, providing consultancy, training and conducting research in the application of systems engineering. He works in industry, government and academia and has applied his work across many disciplines in a wide range of industries including defence, the nuclear industry, timber engineering, finance and train manufacture. He is a Member of the IET and INCOSE.

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Associate Consultants


James Towers

BEng (Hons), CEng, MIET, MINCOSE
Associate Consultant

James Towers holds a Bachelors degree in Electrical and Electronic Engineering from the Nottingham Trent University. Since gaining his degree in 1996 he has spent nearly 20 years working on software and systems modelling. James has presented both papers and tutorials at conferences and seminars as well as writing and teaching training courses. He has provided consultancy, training and mentoring to a wide range of organisations working in power electronics, telecommunications, rail, consumer electronics, information technology, finance, pharmaceuticals, retail and supply chain. He is a member of the IET, INCOSE, IIBA and chair of the INCOSE UK Model-Based Systems Engineering Working Group.

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Rob Behan

Associate Consultant

Rob Behan holds a Bachelor degree in Pure & Applied Physics from Salford University and a Post Graduate Certificate of Education from Exeter University.   Rob has over 35 years industrial experience across a number of diverse fields including leading large multidiscipline teams, collaborating with manufacturing partners in the delivery of complex systems, and the development of advanced concepts.  He has experience of working with industrial  partners (both UK and multinational) and government agencies across the aerospace, naval marine, rail, and manufacturing business sectors.

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Fran Thom

Associate Consultant

Fran Thom holds Batchelor Degrees in Physics and Education from Sheffield City Polytechnic. During the past 27-years Fran has applied an extensive working knowledge of regulated industries (aerospace, rail, nuclear, marine, automotive, defence) to deliver a practical and pragmatic approach to model-based enterprise, systems and software development. He has consulted, trained and mentored organisations to establish and lead multi-disciplinary teams (bridging management and technical) to successfully deliver complex systems and software. Fran is motivated by solving the engineering and organisational challenges of developing and maintaining cyber-physical systems for Industry 4.0 and the IoT in regulated industries.

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