The data is in. High Performance Cultures are burning us out.
According to the 2025 Gallup State of the Global Workplace, employee engagement has dropped for the first time in a decade. Stress levels are at an all-time high. In Australia, productivity has halved compared to the 25-year average. We’re not thriving, we’re surviving.
The problem? High performance has become high pressure. We’ve mistaken output for impact and goals for growth.
The result? Declining trust. Soaring burnout. Great talent quietly quitting or loudly walking.
It’s time to evolve.
High performance cultures had their day. Now, we build something better.
I'm Tamsin Simounds
I help you build high personal growth cultures
I’m a Neuroscience and business Masters candidate, executive coach, and keynote speaker trusted by leaders at ANZ, Flight Centre, Pickstar, and more. My mission? To rewire how we lead, grow, and perform. Getting exceptional business outcomes, without sacrificing the human in the process.
I bring science-backed frameworks and live-tested tools that close the gap between what we know and what we actually do. Because information doesn’t create change. Experience does.
If you’re leading a business or culture that must evolve with the times—this work is for you.

Let's work together

Keynote Speaking
High impact, High resonance, Zero fluff
Tamsin delivers science-rich, story-led keynotes that move audiences to action. Expect energy, evidence, and real tools your leaders can use the next day.
Topics Include:
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Lead a High Personal Growth Culture
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The Science of Personal Growth
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The Experiment Mindset Method
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The Three Levers for Behaviour Change
Leadership Coaching & Advisory
Transform the way
you lead
From burnout to boldness, Tamsin helps leaders navigate inflection points with clarity, courage, and personal growth. Expect pragmatic, neuroscience-based coaching that drives deep results.
Ideal for:
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Founders in growth
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Executives at a crossroads
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Emerging, ambitious leaders ready for the next level
Culture Workshops and Programs
Rewire Your Culture for Sustainable Growth
Tailored workshops and programs that help teams grow in capability, trust, and aligned impact.
Based on the Three Levers for Change: Psychology, Physiology, and Environment.
Signature Program: Build a High Personal Growth Culture
Also available: Custom intensives, offsite facilitation, leadership development