Our Science-Human Approach

We humanise the science

Backed by neuroscience, psychology, and performance research, our methods turn proven theory into practical habits your people can use—right away and for the long haul.

Case Studies

Meet Poppy Griffiths,

UnlimitU Director, Founder and

Your Inspiring Event Speaker.

Poppy Griffiths is the passionate founder and driving force behind UnlimitU High Performance Coaching, a leading Melbourne-based coaching and consulting organisation. As a dynamic keynote speaker and neuroscience-qualified professional coach, Poppy is renowned for her ability to inspire, connect and uplift audiences with warmth, humour and high energy.

With over 20 years of commercial corporate experience in Australia and internationally, Poppy understands the complexities and challenges faced by modern workplaces. She has successfully led teams and worked for some of Australia’s most iconic brands and organisations, including Qantas Group, Swisse Wellness and Jean Hailes for Women’s Health.

UnlimitU partners with a diverse range of clients, including businesses of all sizes, government agencies, secondary schools, and elite sports clubs throughout Australia, New Zealand, Asia Pacific and Europe. Poppy’s expertise in leadership, inclusion and mental wellbeing has made her a trusted advisor and facilitator for organisations seeking to create lasting, positive change.

A dedicated advocate for preventative mental health, Poppy has spent 15 years collaborating with organisations to improve mental health outcomes in Australia. She is a renowned speaker, ambassador, and media spokesperson for the R U OK? organisation and the Danny Frawley Centre (St Kilda Football Club’s mental health charity). Poppy is also a former board member and Deputy Chair of Nutrition Australia.

Beyond her professional achievements, Poppy is known for her authentic, human-centred approach. She is especially passionate about advancing women in leadership, supporting working parents, and building resilient, mentally fit teams. When she’s not coaching or speaking, Poppy enjoys spending time with her family, serving as "an exceptional kids’ sport taxi-driver", and competing as a passionate ocean swimmer.

Contact UnlimitU today to learn more about our coaching, workshops and leadership programs.

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Qualifications and Accreditations

Bachelor of Arts & Science (Psychology)

Master of Business Management

Brain-based professional Coaching, Neuroscience & Positive Psychology

Associate Certified Coach (ACC)

Accredited Mental Health First Aider

Certificate in Leading Psychological Safety & Care

Mental Fitness Coaching Training

Our Science-Human Approach.

The foundation of UnlimitU’s approach is science.

Our strategies, tools, and techniques combine:

What sets us apart? We translate the science into practical, everyday human-centred and bite-sized strategies that can be used right away and sustainably everyday.

Poppy is a certified neuroscience trained coach, accredited by The International Coaching Federation (ICF) and uses The Results Coaching System™. This brain-based methodology has been used by multinationals and government departments worldwide since 1996, and forms the backbone of our coaching practice.

Combining science and real-lived experience, Poppy begun her 20-year corporate career in Marketing and Communications, also studying a Master's of Business Management at Monash Business School, and a Bachelor's of Psychology at The University of Melbourne & Leiden University in The Netherlands, majoring in Organisational Psychology.

Read Our Case Studies

A Partnership You Can Trust.

At UnlimitU, we are motivated, inspired, and guided every day by our four fundamental values:

Be Courageous: We are ambitious for growth. We inspire people and organisations to step out of their comfort zone and unlock their full potential.

Trust First: We build genuine connections. Together we strive for best, overcome roadblocks and amplify collective strengths. We do everything in partnership.

Own It: We drive accountability. The cornerstone of success is having clear sight of responsibility and direction. We help people take action with clarity.

Live With Compassion: We seek to understand. Life is full of wins to celebrate and setbacks to navigate. We champion empathy, curiosity and resilience.