About TetraMap
Strength lies in
valuing difference.
TetraMap is a simple, nature-based framework for understanding difference, building relational intelligence and helping people work better together.
Our story
Built in
New Zealand.
Shared with the world.
TetraMap began with a question from founders Jon and Yoshimi Brett: what could nature teach us about understanding difference?
The answer became a practical framework that is now used by facilitators, leaders, educators and communities around the world.
Our strategic architecture
What guides us.
Purpose
To help people understand and value difference, strengthen relationships and thrive by working with the wisdom of nature.
Vision
A world where difference unites rather than divides, relationships flourish through interdependence, and humanity lives in harmony with nature.
Mission
We equip people with a simple nature-based framework to build relational intelligence, reduce misunderstanding and work better together.
Our promise
Simple language.
Deep insight.
Stronger relationships.
Our values
How we choose to work.
These six values underpin what we do, say and offer.
Our people
One team. Many perspectives.
Our international team supports the framework, facilitator community, technology, brand and relationships that help TetraMap grow with integrity.
Group Managing Director and MTF
Madelize Bekker
I care deeply about how we build organisations where people can perform without having to change who they are.
At TetraMap I work with our global community to make TetraMap accessible to as many people as possible.
For me, strength lies in valuing our differences.
Managing Director, TetraMap UK and EMEA
Mark Doughty
As Managing Director of TetraMap UK, drawing on extensive global experience in leadership, team, and organisation development, I bring a commercially grounded approach to applying TetraMap. My work focuses on helping leaders and teams communicate more effectively, collaborate with purpose, and use their differences both as a source of competitive advantage and to generate long-term organisational value.
Global Head of Operations, Strategic & MTF
Ruth Robinson
As Global Head of Operations & Strategic Projects, I am the driving force behind business operations, which means I am responsible for budgets and forecasts, strategy, enquiries, supporting facilitators and collaborating with clients to unlock TetraMap’s transformative potential. With a keen eye for marketing, I like to ensure TetraMap shines bright.
Chief Technology Officer and CTF
Brett Baker
As a seasoned IT professional, I’m passionate about creating software and bringing TetraMaps ideas to life.
I give most of my focus to the systems that support our facilitator network. I love that I can enable them to do more for their clients.
Working for TetraMap makes me appreciate nature, which I embrace when I play Golf or go Scuba Diving.
Administrator, UK and EMEA
Helen Harris
I provide administrative support and assistance to Ruth for TetraMap UK & Europe. Being organised is key to my role and I love making sure all our facilitators have the right resources at hand and receive them promptly. The more I work with TetraMap the more I learn about myself and others.
Communications Consultant
Elaine Vinter
My background is PR and communications and I love to bring ideas and concepts to life. Story telling is a huge part of that and TetraMap is full of amazing stories! As a longtime fan of TetraMap, I want to share your stories and continue to promote our global community.
Global Brand Ambassador and MTF
Louise Duncan
When I discovered TetraMap over twenty years ago, little did I realise it would change the course of my life. I was fascinated by its simplicity and powerful potential as a learning experience.
“You can never learn less; you can only learn more.” is a favourite quote from Buckminster Fuller I uphold daily.
Co-Founder
Jon Brett
Yoshimi and I created TetraMap as a metaphor for the nature of behaviour to help people discover for themselves HOW people are different. It is a simple tool which also applies to the behaviour of systems and can help us develop eco-centric approaches mimicking the emergent evolution of Nature.
Co-Creator, author and facilitator of change
Yoshimi Brett
Alongside Jon, I co-created TetraMap. Now “retired” …we’re thrilled to have the space to crystallise lessons learned from TetraMap and to apply those lessons in support of Nature. Our intentions are to help leaders embrace the mindset that we ARE Nature. When we heal Nature, we heal ourselves.
Global Advisory Board
Andy Cocker
Andy Cocker works with leaders and teams to strengthen alignment, collaboration, and performance in complex environments. His international career spans the Americas, Europe, the Middle East, and China, including 13 years living in Ecuador. A former Honorary Consul, Andy brings a global perspective shaped by diplomacy, leadership, and cross-cultural work. Outside work, he enjoys sea swimming and time with his family.
Global Advisory Board
Claudia Faletolu
Claudia Faletolu is a Māori organisational development and strategy practitioner based in Brisbane, working across Australia and Aotearoa New Zealand. With more than 20 years’ experience, she supports leaders and organisations to navigate complexity, strengthen culture, and build relationally healthy systems. Her work integrates Indigenous perspectives with leadership and whole-of-system change.
Global Advisory Board
Graham Griffin
Graham Griffin is an organisational behaviour specialist and leadership practitioner based in the United Kingdom. With a background in learning, culture, and people development, he works with organisations to unlock human potential and strengthen leadership capability. Graham is also connected with the Global Kindness Institute, reflecting his strong belief in kindness as a strategic leadership practice.
Global Advisory Board
Burkhard Höhne
Burkhard Höhne brings more than four decades of international leadership and human resource experience in the financial sector. As a business coach, he focuses on the human side of organisations, helping leaders navigate complex change with reflection and resilience. A certified TetraMap facilitator since 2012, he values the framework’s emphasis on interdependence and diverse perspectives.
Global Advisory Board
Ariel Pagdanganan
Ariel Pagdanganan helps people and organisations grow together. Through his work with Convergent Experience, he supports business growth while developing leaders and strengthening team capability. A Certified TetraMap Facilitator since 2018, Ariel works with teams to build psychologically safe environments where communication is clearer, collaboration is stronger, and people feel confident to contribute their best.
Global Advisory Board
Ilona Ryan
Ilona Ryan is a nursing leader with 25 years’ experience across clinical practice, healthcare leadership, and nursing education. As Education Manager at St Vincent’s Private Hospital Melbourne, she leads clinical education teams and supports innovation in professional development. A certified TetraMap facilitator and mentor with the Australian College of Nursing, she is deeply committed to helping nurses realise their potential.
Global Advisory Board
Karen Swinley
Karen Swinley is passionate about communication, relationships, and healthy workplace culture. She enjoys helping teams explore the different ways people think and work, building understanding and trust through practical frameworks. Karen values TetraMap for the simple, non-judgemental language it provides to strengthen collaboration and connection.
Global Advisory Board
Raymond Yap
Raymond Yap is a leadership development and transformation specialist based in Singapore and a TetraMap Master Facilitator certified by the founders. Since 2007 he has worked with senior leaders across Asia in leadership, strategy, and organisational development. His perspective is shaped by 27 years of service in the Republic of Singapore Air Force before moving into consulting and executive coaching.
Indigenous Advisory Board
Jade Gibson
Jade Gibson is a Māori environmental scientist, systems thinker, and facilitator who works at the intersection of mātauranga Māori, ecology, and regenerative systems. Based on the East Coast of Aotearoa New Zealand, she supports communities and organisations to better understand the patterns of nature and apply them in human systems. Her work is grounded in kaitiakitanga, interdependence, and long-term resilience.
Indigenous Advisory Board
Kataraina Pipi
Kataraina Pipi is a Māori leader and governance practitioner based in Aotearoa New Zealand. Her work focuses on strengthening relationships between organisations, communities, and whenua through kaupapa Māori values and leadership practice. Kataraina brings deep experience in cultural guidance, governance, and community development, supporting organisations to engage respectfully with Māori perspectives and long-term stewardship.
Strategic Working Circles
Heather Swain
Heather Swain is a leadership and talent development specialist with more than 30 years of global experience, particularly in professional and financial services.
She works with leaders and teams to strengthen self-awareness, trust, and collaboration, helping people understand how everyday behaviours shape culture and performance. Heather brings both British and Australian perspectives to her work.
Strategic Working Circles
Zibi Grodzki
Zibi Grodzki helps organisations build stronger leadership, sales, and collaboration. Based in Poland, he has been working with TetraMap since 2008, delivering programmes for organisations including Deutsche Bank, Citibank, and Renault.
Zibi works with teams to build trust, improve communication, and support culture change, including in M&A environments where pressure and conflict are often high. He is interested in strategic thinking, drawing on Sun Tzu, and is exploring how AI can support leaders in making more informed decisions.
Strategic Working Circles
Corene Walker
Corene Walker works with leaders and organisations to build cultures that are more human, adaptive, and grounded in how people and systems grow. Her work focuses on helping organisations move beyond traditional management towards approaches that support trust, purpose, and long-term wellbeing.
She brings a strong interest in viewing organisations as living systems, drawing on nature and evolution, and supports leaders to adopt more conscious, empowering ways of working in changing environments.
Founding Regional Growth Partner — Asia
Raymond Yap
As Founding Regional Growth Partner for TetraMap Asia, I’ve been part of establishing the foundations TetraMap continues to grow from across the region. My belief in TetraMap, my commitment to building meaningful relationships, and my dedication to sharing its purpose are what I bring to this ongoing journey.
Primary Regional Growth Partner — Vietnam
Brahmi Nguyễn
As Primary Regional Growth Partner for Vietnam, I bring my leadership, energy and deep understanding of the local context to help bring TetraMap’s relational approach to more people, organisations and communities. I’m committed to growing TetraMap in Vietnam with trust and care at the centre of everything we build.
Global Strategic Advisor
Kenny Nguyễn
As Global Strategic Advisor to TetraMap International, I bring my experience in business development, commercial strategy and international partnerships to help TetraMap explore sustainable opportunities for global growth. I contribute my insight, relationships and experience in an independent advisory capacity, and I’m looking forward to the journey ahead.
TetraMap International
TetraMap International is a New Zealand company with a team in the UK, serving facilitators in over 50 countries. We look after systems, technology, client relationships, brand, marketing and intellectual property so that facilitators can focus on reaching their clients and creating workshop experiences that stick.
Our UK team works inter-dependently with us across the UK and Europe, giving near round-the-clock cover between the two offices. We are one team, closely connected through shared values and a genuine love for the work.
Group Managing Director and MTF
Madelize Bekker
I care deeply about how we build organisations where people can perform without having to change who they are.
At TetraMap I work with our global community to make TetraMap accessible to as many people as possible.
For me, strength lies in valuing our differences.
Managing Director, TetraMap UK and EMEA
Mark Doughty
As Managing Director of TetraMap UK, drawing on extensive global experience in leadership, team, and organisation development, I bring a commercially grounded approach to applying TetraMap. My work focuses on helping leaders and teams communicate more effectively, collaborate with purpose, and use their differences both as a source of competitive advantage and to generate long-term organisational value.
Ruth Robinson
As Global Head of Operations & Strategic Projects, I am the driving force behind business operations, which means I am responsible for budgets and forecasts, strategy, enquiries, supporting facilitators and collaborating with clients to unlock TetraMap’s transformative potential. With a keen eye for marketing, I like to ensure TetraMap shines bright.
Chief Technology Officer and CTF
Brett Baker
As a seasoned IT professional, I’m passionate about creating software and bringing TetraMaps ideas to life.
I give most of my focus to the systems that support our facilitator network. I love that I can enable them to do more for their clients.
Working for TetraMap makes me appreciate nature, which I embrace when I play Golf or go Scuba Diving.
Administrator, UK and EMEA
Helen Harris
I provide administrative support and assistance to Ruth for TetraMap UK & Europe. Being organised is key to my role and I love making sure all our facilitators have the right resources at hand and receive them promptly. The more I work with TetraMap the more I learn about myself and others.
Communications Consultant
Elaine Vinter
My background is PR and communications and I love to bring ideas and concepts to life. Story telling is a huge part of that and TetraMap is full of amazing stories! As a longtime fan of TetraMap, I want to share your stories and continue to promote our global community.
Global Brand Ambassador and MTF
Louise Duncan
When I discovered TetraMap over twenty years ago, little did I realise it would change the course of my life. I was fascinated by its simplicity and powerful potential as a learning experience.
“You can never learn less; you can only learn more.” is a favourite quote from Buckminster Fuller I uphold daily.
Co-Founder
Jon Brett
Yoshimi and I created TetraMap as a metaphor for the nature of behaviour to help people discover for themselves HOW people are different. It is a simple tool which also applies to the behaviour of systems and can help us develop eco-centric approaches mimicking the emergent evolution of Nature.
Co-Creator, author and facilitator of change
Yoshimi Brett
Alongside Jon, I co-created TetraMap. Now “retired” …we’re thrilled to have the space to crystallise lessons learned from TetraMap and to apply those lessons in support of Nature. Our intentions are to help leaders embrace the mindset that we ARE Nature. When we heal Nature, we heal ourselves.
The TetraMap Governance & Advisory Ecosystem
TetraMap operates through a Global Connected Governance and Advisory Ecosystem that brings together customers and practitioners across several bodies to inform, steward, and shape long-term strategic direction. We intentionally designed this fluid network to create world-class solutions that deliver significant commercial value and elevate clients’ business performance.
Global Advisory Board
Andy Cocker
Andy Cocker works with leaders and teams to strengthen alignment, collaboration, and performance in complex environments. His international career spans the Americas, Europe, the Middle East, and China, including 13 years living in Ecuador. A former Honorary Consul, Andy brings a global perspective shaped by diplomacy, leadership, and cross-cultural work. Outside work, he enjoys sea swimming and time with his family.
Global Advisory Board
Claudia Faletolu
Claudia Faletolu is a Māori organisational development and strategy practitioner based in Brisbane, working across Australia and Aotearoa New Zealand. With more than 20 years’ experience, she supports leaders and organisations to navigate complexity, strengthen culture, and build relationally healthy systems. Her work integrates Indigenous perspectives with leadership and whole-of-system change.
Global Advisory Board
Graham Griffin
Graham Griffin is an organisational behaviour specialist and leadership practitioner based in the United Kingdom. With a background in learning, culture, and people development, he works with organisations to unlock human potential and strengthen leadership capability. Graham is also connected with the Global Kindness Institute, reflecting his strong belief in kindness as a strategic leadership practice.
Global Advisory Board
Burkhard Höhne
Burkhard Höhne brings more than four decades of international leadership and human resource experience in the financial sector. As a business coach, he focuses on the human side of organisations, helping leaders navigate complex change with reflection and resilience. A certified TetraMap facilitator since 2012, he values the framework’s emphasis on interdependence and diverse perspectives.
Global Advisory Board
Ariel Pagdanganan
Ariel Pagdanganan helps people and organisations grow together. Through his work with Convergent Experience, he supports business growth while developing leaders and strengthening team capability. A Certified TetraMap Facilitator since 2018, Ariel works with teams to build psychologically safe environments where communication is clearer, collaboration is stronger, and people feel confident to contribute their best.
Global Advisory Board
Ilona Ryan
Ilona Ryan is a nursing leader with 25 years’ experience across clinical practice, healthcare leadership, and nursing education. As Education Manager at St Vincent’s Private Hospital Melbourne, she leads clinical education teams and supports innovation in professional development. A certified TetraMap facilitator and mentor with the Australian College of Nursing, she is deeply committed to helping nurses realise their potential.
Global Advisory Board
Karen Swinley
Karen Swinley is passionate about communication, relationships, and healthy workplace culture. She enjoys helping teams explore the different ways people think and work, building understanding and trust through practical frameworks. Karen values TetraMap for the simple, non-judgemental language it provides to strengthen collaboration and connection.
Global Advisory Board
Raymond Yap
Raymond Yap is a leadership development and transformation specialist based in Singapore and a TetraMap Master Facilitator certified by the founders. Since 2007 he has worked with senior leaders across Asia in leadership, strategy, and organisational development. His perspective is shaped by 27 years of service in the Republic of Singapore Air Force before moving into consulting and executive coaching.
The Indigenous Advisory Board
A group that helps guide how TetraMap honours indigenous wisdom, cultural context, and respectful partnership as the work evolves.
Indigenous Advisory Board
Kataraina Pipi
Kataraina Pipi is a Māori leader and governance practitioner based in Aotearoa New Zealand. Her work focuses on strengthening relationships between organisations, communities, and whenua through kaupapa Māori values and leadership practice. Kataraina brings deep experience in cultural guidance, governance, and community development, supporting organisations to engage respectfully with Māori perspectives and long-term stewardship.
Indigenous Advisory Board
Jade Gibson
Jade Gibson is a Māori environmental scientist, systems thinker, and facilitator who works at the intersection of mātauranga Māori, ecology, and regenerative systems. Based on the East Coast of Aotearoa New Zealand, she supports communities and organisations to better understand the patterns of nature and apply them in human systems. Her work is grounded in kaitiakitanga, interdependence, and long-term resilience.
The Strategic Working Circles
Small, purpose-led groups that bring people together to explore ideas, test thinking, and contribute to the next steps in TetraMap’s development.
Strategic Working Circles
Heather Swain
Heather Swain is a leadership and talent development specialist with more than 30 years of global experience, particularly in professional and financial services.
She works with leaders and teams to strengthen self-awareness, trust, and collaboration, helping people understand how everyday behaviours shape culture and performance. Heather brings both British and Australian perspectives to her work.
Zibi Grodzki
Zibi Grodzki helps organisations build stronger leadership, sales, and collaboration. Based in Poland, he has been working with TetraMap since 2008, delivering programmes for organisations including Deutsche Bank, Citibank, and Renault.
Zibi works with teams to build trust, improve communication, and support culture change, including in M&A environments where pressure and conflict are often high. He is interested in strategic thinking, drawing on Sun Tzu, and is exploring how AI can support leaders in making more informed decisions.
Corene Walker
Corene Walker works with leaders and organisations to build cultures that are more human, adaptive, and grounded in how people and systems grow. Her work focuses on helping organisations move beyond traditional management towards approaches that support trust, purpose, and long-term wellbeing.
She brings a strong interest in viewing organisations as living systems, drawing on nature and evolution, and supports leaders to adopt more conscious, empowering ways of working in changing environments.
The Founders Stewardship Council
Jon and Yoshimi Brett remain connected to the work, offering founder wisdom when questions touch the identity, values, and long-term stewardship of TetraMap.
Founders Stewardship Council
Jon & Yoshimi Brett
Yoshimi Brett is a third generation Japanese-American-Kiwi. Jon Brett is a born and bred Kiwi. They started their adventure in 1978 sailing the Pacific, then lived in Japan and Australia. Fast forward 46 years – they’re now in Tāmaki Makaurau (Auckland) on the whenua (land) where Jon grew up.
In 2000 Yoshimi & Jon birthed TetraMap, a model that explores the nature of behaviour. They authored the book: TetraMap: Develop People and Business the Way Nature Intended. Since, they’ve watched their tamariki (child) develop into a beautiful network of dedicated facilitators of change.
Buckminster Fuller (1895-1983) and Nature sit at the heart of TetraMap. In 1976, Fuller predicted that it would take 50 years (pointing to 2026) for humanity to truly realize that its institutions were based on an …outdated, inaccurate understanding of the world, specifically in relation to resource management and “sufficiency”.*
Nature has always guided us toward the wisdom of the Elements and ‘shared sufficiency’. Now in 2026, humanity has a multitude of technical solutions needed to repair the planet so we can all live in abundance and peace. It’s the shifts needed in our behaviours and mindsets that will manifest the world our grandchildren will to grow into. TetraMap’s time of acceptance and relevance has come to help make those shifts.
Yoshimi and Jon are forever grateful to those committed to listening to Nature and instilling her principles for a world that is, like her, “exquisitely efficient”.
The Board of Directors
The statutory boards are responsible for governance, legal oversight, and the formal stewardship of TetraMap’s organisations. The Director of TetraMap International is Madelize Bekker. The Directors of TetraMap UK are Mark Doughty and Ruth Robinson.
Group Managing Director and MTF
Madelize Bekker
I care deeply about how we build organisations where people can perform without having to change who they are.
At TetraMap I work with our global community to make TetraMap accessible to as many people as possible.
For me, strength lies in valuing our differences.
Managing Director, TetraMap UK and EMEA
Mark Doughty
As Managing Director of TetraMap UK, drawing on extensive global experience in leadership, team, and organisation development, I bring a commercially grounded approach to applying TetraMap. My work focuses on helping leaders and teams communicate more effectively, collaborate with purpose, and use their differences both as a source of competitive advantage and to generate long-term organisational value.
Ruth Robinson
As Global Head of Operations & Strategic Projects, I am the driving force behind business operations, which means I am responsible for budgets and forecasts, strategy, enquiries, supporting facilitators and collaborating with clients to unlock TetraMap’s transformative potential. With a keen eye for marketing, I like to ensure TetraMap shines bright.
Strategic Growth Partners
Founding Regional Growth Partner — Asia
Raymond Yap
As Founding Regional Growth Partner for TetraMap Asia, I’ve been part of establishing the foundations TetraMap continues to grow from across the region. My belief in TetraMap, my commitment to building meaningful relationships, and my dedication to sharing its purpose are what I bring to this ongoing journey.
Primary Regional Growth Partner — Vietnam
Brahmi Nguyễn
As Primary Regional Growth Partner for Vietnam, I bring my leadership, energy and deep understanding of the local context to help bring TetraMap’s relational approach to more people, organisations and communities. I’m committed to growing TetraMap in Vietnam with trust and care at the centre of everything we build.
Global Strategic Advisor
Kenny Nguyễn
As Global Strategic Advisor to TetraMap International, I bring my experience in business development, commercial strategy and international partnerships to help TetraMap explore sustainable opportunities for global growth. I contribute my insight, relationships and experience in an independent advisory capacity, and I’m looking forward to the journey ahead.
Strategic ambition
By 2030, TetraMap is recognised as one of the world’s most trusted relational-intelligence frameworks, digitally enabled, globally accredited, and embedded in organisations and communities as a core capability for leadership, culture and human performance.
The next chapter
