Who We Are

 Management Team

Jonathan’s passion lies in developing people, especially in management and leadership roles. He is a counselling psychologist and his teaching, research and consulting interests include self-assessment and peer feedback in leadership and management development.

He is chairman and chief consultant of Thornhill Associates. One of his contributions has been to develop the standard Thornhill 360 degree questionnaires, drawing on his expertise in psychological assessment and experience in management education.

After qualifying as a counselling psychologist, and working with community and church-based organisations for several years, he spent ten years with the National Institute for Personnel Research in Johannesburg, finally as Head of Assessment and Counselling. His next fifteen years were spent as a faculty member at the Graduate School of Business Administration of the University of the Witwatersrand (Wits Business School), where he founded the Management Development Unit and later became director of academic programmes.

In 2004 he joined the Gordon Institute of Business Science (GIBS) of the University of Pretoria as senior lecturer, and in 2011 was appointed Director, a position he held until December 2013. He still teaches part time at GIBS in the areas of leadership and personal development, including the MBA core course Human Behaviour and Performance in SA and an MBA elective called The Moral Leader.

He left GIBS to devote more time to Thornhill and to the African Management Initiative (AMI –www.africanmanagers.org ), which he helped found and currently chairs. AMI is a social enterprise focused on developing scalable approaches to supporting African managers in excellent performance.

Jonathan is the past chairman of the Association of African Business Schools and currently serves as chairman of Tomorrow Trust and BizSchool.

He and Sally have two sons, and (so far) two granddaughters and two grandsons.

Daphne joined Thornhill Associates in March 2006. She was admin manager until her appointment as CEO in July 2012. Daphne is a registered counselling psychologist as well as a qualified coach, and she maintains a private practice.

Prior to joining Thornhill, Daphne was self-employed for seven years. During this time her main contracts included conducting research for Africa’s leading publishing group and acting as project manager for P3 Management Consultants. She also spent four years with Hay Management Consultants SA (part of the HayGroup) as senior consulting assistant and support team leader, and Daphne co-ordinated the marketing activities for Hay SA in Africa.

She started her career in 1987 in the IT industry. Daphne was the admin consultant for SilverLine Resources (an IT Contracting, Recruitment and Consulting company) for seven years, before moving to SQL Integrators (now Sybase SA) to support the sales team.

Daphne holds an MA Counselling Psychology (cum laude) from the University of Johannesburg, and completed her internship at the Centre for Psychological Services and Career Development (PsyCaD). She has a BA Hons (Psych) from the University of Johannesburg and a Bachelor of Arts (Psychology and Communication) degree from UNISA. Daphne also holds Myers-Briggs Type Indicator® (MBTI®) International Accreditation, as well as a Brain Based Coaching Certificate from Results Coaching Systems and NeuroLeadership Group.

She is passionate about people development and helping others become all that they can be in every area of their lives. Daphne believes that people can change and volunteers as a co-facilitator for the Alpha course in Leeuwkop Maximum Prison. She thoroughly enjoys travelling and experiencing different cultures, as well as rollercoasters, mountain biking, hiking and reading.

Daphne is married and blessed with a son and a daughter.

Martin Cook’s passion is to use creative problem solving and technology to improve people’s lives.

He has a PhD in applied nuclear physics, pioneering a technique to locate diamonds in kimberlite streams using a combination of particle accelerator physics and nuclear medicine. His Masters degree is in string theory, a branch of physics attempting to understand the universe at a fundamental level. He is currently pursuing the commercialisation of his PhD.

Martin worked part time for Thornhill between 2004 and 2014. During that time, he also held positions as a system administrator of a research cluster computer at Wits University, a database developer at a group of HIV/TB clinics and a programme manager at the University of Johannesburg, setting up a new Masters level course in nuclear energy.

After submitting his PhD thesis at the beginning of 2014, he headed up the Thornhill development team until mid 2015. Since then, he has stepped out of day-to-day Thornhill operations, but remains active as a director on the board, and provides occasional input into the development team.

Martin’s biggest joy in life are his daughter (who is, without doubt, the most gorgeous girl on the planet) and his son (who is, without doubt, gearing up to take over the world).

Consultants, Coaches and Researchers

Verity has over 20 years’ experience in both corporate and small businesses in South Africa, where she has been involved in many different aspects of general management. She is currently specialising in professional and personal leadership development and enjoys several roles within this area. Verity started working with Thornhill Associates in 2008 and acts as a consultant and coach.  She is also a partner in Abbellard Business Innovation, a company involved in designing and delivering women’s leadership development programmes and helping organisations create gender balance. Furthermore, she is a Professional Associate at the Gordon Institute of Business Science (GIBS) where she is involved in personal development coaching, international and local action learning coaching, programme integration, MBA mentoring, case study writing, lecturing and supervision of MBA research.

Verity’s qualifications include an MBA from GIBS, a Post Graduate Diploma in Management (Business Administration) from Wits Business School, and BA degree (English and French Studies) from the University of Kwazulu-Natal, Pietermaritzburg campus. Verity is an Accredited Certified Coach (ACC) with the International Coach Federation (ICF) and she has completed the following coaching courses: Professional Business Coaching Programme (GIBS), Advanced and Fundamentals of Organisation and Relationship Systems Coaching (ORSC) (CRR Global), Executive Personal and Leadership Coaching (The People Business).  In addition, she has attended further learning courses, namely: Leader as Mentor (GIBS), Depth Facilitation (Depth Leadership Trust), Competitive advantage through management innovation (GIBS), and HIV/AIDS Pre-& Post-test Counselling Skills (Family Life Centre). Verity has published several teaching case studies through the Richard Ivey School of Business, University of Western Ontario.

Verity is an outdoor enthusiast; she loves bird watching, camping in remote places, mountain biking, trail and road running (she has completed the Comrades ultra marathon; great fun, but never again!). Verity volunteers as a reader for Tape Aids for the Blind.

Verity is married with a teenage daughter and two wild Boxer dogs.

Rory’s strength lies in catalysing theory into action. He is committed to developing people and businesses to impact and influence communities. His DNA is to collaboratively implement solutions through relationships.

After a journey through theology and education, he qualified and is registered as a Counselling Psychologist. Industry and business is his calling and after an immensely rewarding career in HR, learning and manufacturing with a multinational FMCG, he established his first entrepreneurial venture. Setting up a unique and pioneering business in learnerships implementation, he was able to contract over 3000 unemployed people into various diverse opportunities in the Services sector.

He has an eye to identify innovative business opportunities. Not all these ideas have been successfully converted, however. By failing forward, he has learnt many lessons, including better ways of translating ideas into reality. His energy, enthusiasm and positivity instil a deep hope for making a difference, particularly in job-creation projects for enterprise and personal success.

He has project managed and delivered creative solutions – from implementing large-scale learning solutions, change management and job creation projects to complex ICT solutions. He has a range of experience across public sector projects, listed private entities and NGOs. More recently, he has focused on people development through coaching and is appointed at National Treasury on their panel of experts.

He has invested heavily in his community and was part of the leadership team formed to “Polish the Jewel” of Daveyton, Benoni, and Etwatwa. He has chaired the school governing body for five years and collaborates best practises “for the sake of the school”. He also serves the Human Capital Institute and is part of their think-tank for implementing talent incubators for leadership development in public-private partnerships.

His wife Kim travels extensively into Africa for a major banking institution. Their three children vicariously enjoyed visiting the gorillas in Uganda when their parents ‘eloped’ on a travel adventure.

Valerie is passionate about organisational excellence and believes that this is achieved primarily through developing leaders at all levels of the organisation.

She holds a Master of Organisational Leadership degree from Regent University (Virginia, USA) and prior to joining Thornhill was employed as Corporate Services Executive at merSETA. During this time Valerie was responsible for heading up the Human Resources, Governance and Marketing units of the organisation.

Previously, Valerie put her Master of Science degree to work at Anglo American Research Laboratories where she established and developed the Training and Development space as well as formalised the Talent Stewardship programme.

She is a firm believer in the power of transformational coaching to provide the support, encouragement and accountability required to walk coachees to the next level of leadership. Valerie finds fulfilment in volunteering her coaching services to school-leavers and university graduates as well as motivating learners from underprivileged communities.

Valerie is married to Steven and has two children for which she is very grateful. Her favourite leisure activities include participating in park-runs with the family, seaside holidays and reading.

Development Team

Frances started as a Senior Software Developer with Thornhill Associates in October 2013, and was appointed Lead Developer in June 2015. Prior to this she worked as a developer at the IT section of the Spec-Savers Group as well as several software development firms in Gauteng and the UK.

From 20 years in the IT industry she has gained experience on a wide variety of systems and platforms, and looks to draw on this to select the best route forward for the Thornhill Systems.

She holds degrees in Computer Science, Applied Mathematics and Conservation Biology – after software development her passions are research and the environment.

Lebohang is a North West University (Vaal campus) Information Technology graduate with a love for all things tech.

He completed his internship in Android mobile development while completing his degree with a multi-national company, and then moved on to PHP coding at an organisation development company in Johannesburg.

Lebohang joined Thornhill in September 2015 as a Software Developer, and he feels that his itch to learn is being scratched daily.

Apart from his passion for programming, Lebohang is the co-founder of a farming start up.

Project Managers

In February 2010 Wendy joined Thornhill Associates as an administrator. She is responsible for administering online projects for clients, assisting with marketing activities, and supporting the coaches and consultants.

Wendy also has 20 year’s work experience from Wits Business School, where she was responsible for managing high profile WBS executive programmes.

Kerryn joined Thornhill Associates as an administrator at the end of 2010. She believes in delivering excellent customer service and prides herself on her strong attention to detail. She is often involved with checking and editing new documents, questionnaires, and reports and enjoys her role in helping to produce a polished product. She is also interested in the functioning of the database and hopes to become more involved in this aspect of Thornhill.

Kerryn holds an MMus degree (composition with research component), and a BMus in vocal performance and composition from The University of the Witwatersrand, both awarded with distinction. She has also completed a number of first, second, and third year psychology modules through UNISA, including modules on community psychology, social psychology, and measurement and questionnaire design. She is currently enrolled in a master’s degree in Music Therapy through the University of Pretoria.

Apart from being a musician, Kerryn enjoys other artistic endeavours, especially painting and the decoration of ceramics. She is crazy about animals, and also loves to read. She enjoys meeting people from other walks of life and finds personal belief systems particularly interesting. Kerryn has previously volunteered at an NPO focussing on the needs of children affected and/or infected by HIV/AIDS. She has also been involved in providing music lessons to disadvantaged and previously disadvantaged members of society.

She thinks Terry Pratchett is a genius.
+++Divide By Cucumber Error. Please Reinstall Universe And Reboot +++
(Terry Pratchett, Hogfather)

Alexandra started as an Administrator with Thornhill Associates in February 2016. She is responsible for administering online projects for clients.

She studied computer science which led to a career in software defect support at IBM. Many years later, after a brief sojourn working at a game lodge in Zimbabwe and a stint in catering, she took on the role of office manager in a property valuation environment.

With her attention to detail and organisational flair, Alexandra discovered an aptitude and enthusiasm for administration.

Alexandra also relishes reading, cooking and champagne tasting in those rare moments when her children are not monopolising her free time.