Our Consulting Team

Our consultants are recognised world-class professionals with extensive experience in creating sustainable individual, group and organisational performance. They provide thought leadership to our accredited practitioners and can work directly with you to help you achieve genuine change.

Carina
Hull

Senior Consultant

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Carina Hull

Senior Consultant

Email: carina@hsnz.co.nz Phone: 021 530 689

Carina creates genuine connections with both individuals and teams. With over 15 years experience on executive teams working for multinationals and as a board member of an internationally publicly listed business she is able to constructively challenge, inspire and assist leaders to develop both strategic and operational plans. She enjoys helping people to challenge their own paradigms and learn to think more effectively.

Carina has spent five years working in Asia, as Regional Development Manager for a multinational and on various merger and acquisition teams. Projects of note include the establishment of an Asian business, including entry into a number of markets namely; Taiwan, Singapore and China. She has also worked to establish joint venture projects in Bangladesh, New Zealand and Australia. In her global capacity Carina has coached a large number of senior executives including CEOs, Country and Regional Manager and Heads of academic institutes.

She has experience in a number of organisational sectors including FMCG, manufacturing, retail, academic institutes, health and government.

"One of my favourite leadership quotes is: 'There are three essentials to leadership: humility, clarity and courage.' — Chan Master Fuchan Yuan. I love this because great leadership is not about ego or having all the answers. It is about being humble enough to listen, clear enough to create direction, and courageous enough to lead through challenge and uncertainty." — Carina Hull

Darren
Levy

Senior Consultant

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Darren Levy

Senior Consultant

Email: darren@hsnz.co.nz Phone: 021 456 422

Darren’s facilitation and coaching style is “dynamically challenging”. He is able to be thought provoking whilst providing inspiration & practical steps for leaders & teams to create and sustain effective change. His value proposition is to help challenge all participants to leave his sessions thinking and acting differently.

Darren has been coaching for over 18 years from grass roots to Executive and Board Level and is a certified coach with ICF.

Darren has completed the Global Executive MBA from the University of Sydney in partnership with Stanford, Indian Institute of Management Bangalore and London School of Economics. He also holds qualifications in Advertising and Marketing, was selected as one of 50 Future Leaders to watch in NZ and is a Chartered Marketer through the Chartered Institute of Marketing UK.

"Whenever we partner with our clients we are inevitably changing something. Whether it be coaching a leader to be more effective, facilitating a team to be more high-performing or to help shape a more constructive organisational culture. The watch out with this is that there is no progress without change... but not all change leads to progress. The combination of our trusted human performance data and constructive approach to working with clients ensures that change does indeed lead to progress." - Darren Levy

Justine
Farrington

Senior Consultant

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Justine Farrington

Senior Consultant

Email: justine@hsnz.co.nz Phone: 021 715 929

Justine is an experienced consultant with a with a rich history in market research, management consulting, and organisational development. With over two decades of experience in consulting and coaching, Justine has worked with a diverse array of clients, including not-for-profits, small and medium-sized enterprises, as well as NZ/ASX listed entities. Her strengths lie in her insightful and empathetic coaching approach, her ability to cultivate dynamic and energised teams, and her encouragement for shaping collective mindsets to foster sustainable workplace cultures where people can truly thrive. Justine is passionate about helping individuals unlock their full potential, fostering high-performance teams, and supporting cultural transformations within organisations.

Justine brings a deep understanding of human behavior and workplace dynamics to her work. She is known for her commitment to challenging norms and supporting clients in finding new and innovative ways of approaching opportunities, enabling leaders to stretch out of their comfort zones and achieve excellent results.

Justine holds a BA Hones Psychology from Victoria University of Wellington (BA Hons Psychology) is an Accredited Practitioner.

"Synergy is about harnessing diverse skills and perspectives to achieve results that exceed individual capabilities. We work with teams to support this, unlock innovation, tackle challenges creatively, and inspire one another toward amazing outcomes. This transforms a group of talented individuals into a powerhouse of creativity and effectiveness. In today's fast-paced and complex world, our clients face difficult choices and competing demands. We recognize the importance of confidence, clear data-driven insights, and trusted connections to navigate these challenges. At Human Synergistics, we partner with clients to provide the support, development, and cultural transformation necessary for people to thrive, collaborate, and fully unlock the power of synergy." – Justine Farrington

Neil
McGregor

Lead Consultant

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Neil McGregor

Lead Consultant

Email: neil@hsnz.co.nz Phone: 021 300 495

Neil has been helping individuals, teams, and organisations realise their full potential for over 20 years with HSNZ. His consulting approach focuses on challenging people to think differently about themselves and their environments to be more effective.

With experience as an Army Officer in the Royal New Zealand Engineers, National Manager of the Training function at The Warehouse, the Head of Corporate Strategy for a large financial institution overseas, working in HR for DB Breweries and running a consulting practice, Neil brings an experienced lens to the way organisations can work.

His work in developing the High Performance Teams (HPT) Framework is a culmination of years of real-world application, academic study and consulting with a wide variety of teams and industries. The framework creates the opportunity for a group of highly effective individuals to be moulded into highly effective teams.

He believes effective performance is achieved when leaders build environments for others within the business to be Clear and Committed, Courageous and Creative, Caring and Capable, and are Connected and Collaborative. Neil helps grow these leaders and build these environments.

“The three core principles of effective change, whether it be for an individual, a team or an organisation, are creating awareness of the need to change, gaining acceptance of the need for change, and then taking the appropriate actions to make change enduring. The hardest of these is acceptance of the need. Creating awareness is easy, especially with our world class data driven analytics, and taking action is easy once you have commitment. It’s getting the commitment that’s the challenge. That is why we use the approaches we do. People will listen to our expertise, but they will only act on their own conclusions.”

Carina Hull

Senior Consultant

Email: carina@hsnz.co.nz Phone: 021 530 689

She has experience in a number of organisational sectors including FMCG, manufacturing, retail, academic institutes, health and government.

Darren Levy

Senior Consultant

Email: darren@hsnz.co.nz Phone: 021 456 422

Darren has been coaching for over 18 years from grass roots to Executive and Board Level and is a certified coach with ICF.

Justine Farrington

Senior Consultant

Email: justine@hsnz.co.nz Phone: 021 715 929

Justine holds a BA Hones Psychology from Victoria University of Wellington (BA Hons Psychology) is an Accredited Practitioner.

Neil McGregor

Lead Consultant

Email: neil@hsnz.co.nz Phone: 021 300 495

Our Purpose? To help organisations strengthen their leadership and culture so people and performance can thrive.

Human Synergistics New Zealand is part of a global network focused on helping organisations understand and improve the behaviours that shape leadership, culture, and performance. For more than four decades, Human Synergistics research and diagnostics have supported organisations worldwide to strengthen leadership effectiveness and organisational culture. Locally, the team brings over 70 years of combined experience with Human Synergistics, with each practitioner having more than a decade of experience identifying, designing, and implementing solutions, making them one of the most experienced and capable OD teams in New Zealand.

The skills our team brings:

Passionate and Experienced Consultants

Our team brings over 120 years of collective work experience with over 70 of those years with HS Consulting, reflecting a deep commitment and passion for helping individuals, teams, and organisations unlock their potential. We have a wide cross section of experiences and perspectives that we can apply to your challenge.

Expertise in Leadership & Culture Transformation

Our team specialises in leadership development, culture transformation, team dynamics, and change management, equipping clients with the tools and mindset shifts needed for long-term success.

Practical, Hands-On Approach

We work alongside our clients as trusted advisors, focusing on real-world application to ensure that our insights and strategies drive sustainable performance improvements.

Tailored & Flexible Solutions

We leverage world-class diagnostic tools and customise our approach to your needs to ensure you get the most value available from any intervention with us

Innovative Gamification

We incorporate award-winning gamification into our solutions to make learning fun and risk-free, creating personal “aha” moments that lead to lasting change. We can develop bespoke gamification solutions to meet your organisational learning needs

Commitment to Continuous Learning

We are big on continuous learning, so we are always scanning for new ways of doing things, and always challenging ourselves and our clients to push beyond the status quo.

Our People

Shaun
McCarthy

Chairman/Director

Michael
Gourley

Director

Lorraine
McCarthy

Counsellor/Coach

Rawinia
Dolan

Marketing Manager

Kim
Goosen

NZ Accounting / Office Manager

Dean
Taylor

Software Architect

Helen
Jensen

Client Service Manager

Joel
Bryan

Arthropod Defenestration

Our History

Founded in 1971, Human Synergistics has built an international reputation for innovation in organisational development, helping enterprises around the world support their people and improve performance through a focus on culture change, leadership development, and team effectiveness.

Today, Human Synergistics operates in more than 90 countries through a global network of practitioners and consulting partners, united by a shared focus on understanding how leadership thinking and behaviour shape organisational culture. Its diagnostics have been used to assess millions of leaders worldwide, providing deep insight into the behavioural patterns that influence performance.

Dr J. Clayton Lafferty

1971

A pioneer in the psychology of achievement and human effectiveness, Dr J. Clayton Lafferty founded Human Synergistics in Chicago, Illinois.

Dr Robert A Cooke

1972

From the beginning, Organisational Cultural exper Dr Robert A Cooke ph.D worked with Dr Lafferty to develop and refine the Circumplex, a visual model for measuring and progressing Constructive styles in individuals, managers, leaders, teams, and organisations.

1979

Our current ANZ Chair Shaun McCarthy, along with business partners Roy Lynch and Michael Gourley, set up the New Zealand business in 1979, the first outside of the USA.

1989

Shaun and his business partners introduced Human Synergistics to Australia in 1989. The Accreditation Programme began in 1997, and in 2015 our Client centric office in North Sydney opened its doors under the leadership of David Byrum who currently serves as the Managing Director.

2026

Today we work with organisations large and small from our offices in 18 countries around the globe. Our mission is at the forefront of everything we do, to change the world - one organisation at a time!

Have an opportunity or a challenge you think we may be able to help you with?

Provide your contact details and some detail below and we’ll get the appropriate consultant to reach out.

Neil McGregor

Lead Consultant

Tel: 021 300 495

Email: neil@hsnz.co.nz

Darren Levy

Senior Consultant

Tel: 021 456 422

Email: darren@hsnz.co.nz

Justine Farrington

Senior Consultant

Tel: 021 715 929

Email: justine@hsnz.co.nz

Carina Hull

Senior Consultant

Tel: 021 530 689

Email: carina@hsnz.co.nz

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The Future of Work Won't Wait! Can Your Leaders Keep Up?

The purpose of leadership is simple but there are paradoxes

Leadership and Career Development with Carina Hull

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Our Consulting Team

CarinaHull

Carina Hull

Senior Consultant

DarrenLevy

Darren Levy

Senior Consultant

JustineFarrington

Justine Farrington

Senior Consultant

NeilMcGregor

Neil McGregor

Lead Consultant

Carina Hull

Senior Consultant

Darren Levy

Senior Consultant

Justine Farrington

Senior Consultant

Neil McGregor

Lead Consultant

Our Purpose? To help organisations strengthen their leadership and culture so people and performance can thrive.

The skills our team brings:

Our People

ShaunMcCarthy

MichaelGourley

LorraineMcCarthy

RawiniaDolan

KimGoosen

Carina
Hull

Darren
Levy

Justine
Farrington

Neil
McGregor

Shaun
McCarthy

Michael
Gourley

Lorraine
McCarthy

Rawinia
Dolan

Kim
Goosen

Dean
Taylor

Helen
Jensen

Joel
Bryan