HEALTHY CONFLICT

Dean Leak delivering a keynote on productive disagreement and decision-making for senior leadership teams

I help organisations create a championship-winning mindset.

I'm on a mission to help people rethink their approach to conflict and disagreement, seeing it as a deeply creative, productive, and meaningful skill for building a better world.

Leadership.

Culture.

Team Performance.

Leadership. Culture. Team Performance.

“100% the most powerful workshop I’ve ever attended” - PwC

Dean Leak working with global organisations on healthy high-performance culture and leadership
  • "Fantastic! The energy in the room was buzzing and there was some real practical takeaways!"

    — Mars Group

  • "100% the most powerful talk I've ever attended"

    — PwC Director

  • "Dean was a truly exceptional speaker"

    — British Government

  • “Brilliant. It’s the second time we’ve had Dean back!”

    WeWork

  • "the best speaker we had in the whole conference!"

    PerformX

Hi, I’m Dean Leak, an expert in high-performance culture, and human potential. I’m an international keynote speaker, coach, and performance strategist who’s worked with Gold Medal Olympic teams, the Commanding Officers of the British Army, and I’ve partnered with some of the world’s most respected organisations - including the L’Oréal, WeWork, IBM, LinkedIn, Baker McKenzie, Specsavers, Mars Group, PwC and more. I work with leadership teams & organisations to build sustainable performance cultures.

HOW I CAN HELP

Dean is a highly sought-after speaker, delivering keynotes around the world on all aspects of high-performance culture and teamwork. He’s delivered over 200 talks and impacted 100,000’s of people in his work.

KEYNOTE SPEAKING


HIGH PERFORMANCE CULTURE SPRINTS

Dean helps leaders in strategically focused roles navigate change & uncertainty and build high-performance cultures that drive sustained excellence. Check out our deck below.


TEAM OFFSITES

Whether leadership offsites, in-person or virtual workshops, Dean works closely with you to create tailored, high-impact strategies that address your organisation's unique challenges. Dean has various packages, including a discreet, exclusive, off-site in a historical estate, delivered alongside Becks Cant.

Examples of Dean’s work

…And why Dean is regularly referred for keynotes, offsites and advisory

A man with short brown hair, blue eyes, and light facial hair, wearing a black T-shirt, sitting against a plain off-white wall.

About

Dean’s clients include Olympic gold-medal teams, Commanding Officers in the British Army, Senior Government Advisors, iconic FMCG brands and global organisations such as IBM, Mars Group, WeWork, L’Oréal, Baker McKenzie, Specsavers, and Air New Zealand

Dean’s topics:

1) Inside gold medal Olympic teams

How to build a "learning mindset" where continuous improvement and experimentation drive a winning, well culture

2) Healthy conflict & disagreeing well

In the world of elite performance, consensus and groupthink are an operational risk. Dean reveals how healthy conflict and intellectual friction transform workplace tension into a competitive advantage for leaders navigating constant change.

3) Leading organisations through change

World class operators scale movements, not mandates. Dean deconstructs the 'Human iOS' - the biological and psychological drivers that allow leaders to unlock peak performance in themselves and their teams.

Full Bio

So, I’ve spent the last 20 years (wait for the but…) building performance cultures most people only see from the outside. Olympic Gold Medal-Winning Teams, FTSE 100 companies, global brands, governments, and the miltary.

Elite sport taught me early that medals and success don’t come from motivational posters or individual heroics. It was having a healthy obsession with learning faster, and figuring out how to bring a group of individuals together and turn them into a united team.

I was lucky to work in elite sport. They invested heavily in us to learn from the best workplaces, including Pixar, NASA, Special Forces, The Royal Ballet, top Children's Hospitals, the New Zealand All Blacks, Apple, and many others.

And along the way, I’ve been able to apply my lessons working with champions such as Jade Jones and Joe Clarke, and led UK-wide talent programmes for Great Britain’s future Olympic champions, figuring out how to create performance environments that built a pipeline of multiple World and Olympic medallists.

But here’s the real story… I didn’t grow up confident, fearless, or ‘high-performing’. I came from humble beginnings. My legendary mum grafted as a cleaner and hairdresser (although I've never forgiven her for allowing me to have a bleached Nike tick on the back of my head!), and my Dad was ex-Army solider, turned lifer at BT. I was anxious, desperate to be liked, riddled with imposter syndrome, and hated speaking in groups. I was known as the ‘nice’ boy - hence ‘quit playing nice’.

So something had to change.

I became fascinated by psychology in order to help myself. Credit to my family, our mantra in life was, ‘If you don’t ask, you don’t get’. So it turned out that I had a knack for asking questions and asking for help – building what I now call your luck surface area.

In fact, my biggest sliding doors moment was in 2008 when I gatecrashed Professor Steve Peters’ medical students' lecture, introduced myself at the end, and asked for his help. It worked out well – he became my mentor for 5 years. That single act changed the direction of my career and my mental fitness.

I no longer see fear, self-doubt, or conflict as weaknesses to hide. I’ve learnt how to work with them and use them as fuel. Today, I speak on stage in front of 1000’s (and enjoy it!) and consult with the world’s largest companies.

So whilst I spent decades running away from conflict, it’s a full circle moment where I now teach it to leaders and teams. I genuinely believe success in business is a team sport, yet when you bring together a group of individuals, it’s complex, messy and dysfunctional. I help teams untangle that to create clarity, trust and agency.

“Dean Leak delivered an exceptional keynote for our audience of 100 global pharmaceutical leaders and was extremely well received. Our delegates were a seasoned senior leadership group, with English often as a second language, so it was essential that the content felt relevant, accessible, and commercially meaningful. Dean judged this brilliantly. He clearly understood both his subject matter and the audience in front of him, striking an effective balance between elite sport, high-performance culture, and practical leadership application in business. His experience working with Olympic athletes, senior military leaders, and FTSE 100 executives gave the session immediate credibility, but what stood out most was his ability to translate that expertise into insights that resonated with senior corporate leaders. The audience were highly engaged throughout, and Dean's key messages were referenced repeatedly in agenda discussions following his presentation, always a strong indicator that a keynote has landed well and added real value. For this group, who were looking specifically for the intersection between best practice in business and lessons from elite sport, Dean was an excellent fit. He brought authority, clarity, and relevance, and delivered in a way that felt both inspiring and applicable. We are already in discussions about a second appearance for Dean with another UK-based client, which speaks for itself. I would absolutely recommend him and would book him again without hesitation.” - Global BioPharma Company

READY TO MAKE YOUR NEXT EVENT UNMISSABLE?

TOPICS I COVER

DISAGREEING WELL / HIGH PERFORMANCE CULTURE / MENTAL FITNESS / LEADING CHANGE / HUMAN CENTRED LEADERSHIP

DOWNLOAD RESOURCES

A digital infograph titled "Plan on a Page" with five sections: 1. Purpose - Why we exist, explaining our reason for being; 2. Ambition - Where we are going, describing success in 3-5 years; 3. Top 3 Priorities - What winning looks like this year, listing goals and strategies; 4. Distraction - What we will say no to, identifying disempowering habits; 5. Focus - What it takes to win, discussing habits, behaviors, and decision-making. The infographic has a blue and white color scheme and a circular logo labeled "Dean Leak" in the bottom right corner.

Plan on a Page

World-class companies do world-class basics. Here’s a Plan on a Pgae to get your team in alignment and united around what matters

Chart comparing healthy and unhealthy disagreements, highlighting differences in approach and emotional states, with steps for effective disagreement including absorb, acknowledge, and ask.

Disagree Well

Find conflict hard? Here’s my 3 A’s to navigating differences with the skill of disagreeing well, without losing trust.

Cover page of a book titled 'No More Struggling with Imposter Syndrome,' authored by Dean Leak, with additional pages showing content on overcoming imposter syndrome.

Imposter Guide

Struggle with imposter syndrome? This powerful guide might help turn your feelings of inadequacy into your strength.

We need workplace cultures that disagree better to make better decisions. Read my article on how artificial harmony is eroding workplace culture👇🏼