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Why clients love us

Talent tell us that Resonance is the most profound leadership development training they've ever experienced.

Read the testimonials below to understand why.

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"A perfect feedback score"

“David delivered a session for me at Henley Business School... He got a perfect [feedback assessment] score, which is extremely rare. They were blown away… I will gladly use him again and would highly recommend him.”

Marti Janse Van Rensburg

Programme Director

Henley Business School Africa

“His support has made all the difference.”

“Having an idea is only part of the solution. Getting your idea out there in the most compelling way is crucial. I will be eternally grateful to David’s Executive Presence Coaching, helping turn my ideas into something much more emotive and captivating. His support has made all the difference.”

Philippa White

Founder & CEO


“Mind-blowing and life-changing.”

“Thank you so much for the insightful principles, David! I honestly hope that more female leaders will have the opportunity to be part of your sessions: they are mind-blowing and life-changing.”

Phumzile Mciwa

Founder of Oluchinelo

Women’s Leadership Programme


“Would absolutely recommend his training to other team and business leaders.”

“David’s charisma and enthusiasm, alongside his focus on tailoring individual and team development journeys, resulted in me taking multiple key new mindsets away from the time we spent together…

David’s training provided more junior members of my team with valuable insights into how to engage with clients and colleagues (and maybe partners!). For the more senior members, it challenged our status quo mindset, and encouraged us to take different viewpoints.

I am really pleased that many team members have requested additional 1:1 training with David following our sessions, and would absolutely recommend his training to other team and business leaders.”

Nick Russell

Senior Investment Director

Investec London

“The results are already showing!”

“I had the pleasure of spending a few days learning from David at Henley Business School on a professional communication workshop aimed at our highly analytical team and management…


David used the time we had to share powerful insights on how we could take the mangled mess of data that we work through daily and transform that into tangible business insights. Moreover, he taught principles and frameworks that would enable us to present this information in the most meaningful, impactful way.


David doesn't teach PowerPoint or generic hacks. This was highly valuable and walking out of there, it felt more like our team spoke the same language - the results are already showing!


Time with David is guaranteed to be well spent.

Dhivesh Dhewlall

Senior Financial Analyst: Financial Engineering

African Bank

“Far exceeded my expectations: it is vastly different to any other training course”

“This course far exceeded my expectations: it is vastly different from any other training I have been on. The content is well-structured and positively thought-provoking.

My one-on-one coaching session with David was extremely humbling… In a world full of numbers, I tend to get caught up in the details. However, this course was most enlightening as it gave me an understanding of where my major areas of development are and how to significantly improve on them, which has enabled me to better come out of my shell.

I would certainly recommend this course as well as the one-on-one sessions to all who intend to excel in their corporate careers. This course will definitely give you the edge.”

Aadil Akoojee

Recoveries, Liabilities, and Litigation Manager

Old Mutual

“David is an electrifying public speaker.”

“David is an electrifying public speaker. His passion for the subject matter is Outstanding.”

Ferdie Enslin

Senior Production Engineer


“The best session I have ever had”

“I have not learned so much in such a short time as the time spent with David… Honestly one of the best if not the best session I have ever had during a course. It will really add so much value to my career. Thanks, David - really impressive stuff.”

Richard Daneel

Engineering Manager


"One of the most edge of your seat speaker"

“One of the most “edge of your seat” speakers I have ever had the pleasure of meeting with. His talks are extremely informative and engaging.”

Hassen Mohammed

Head of Business Performance



“A life-changing experience”

“The Resonance learning journey was a life-changing experience for me, both in my personal and professional life. The course gave me a different mindset and has given me the confidence to present the best version of myself to the world.


I highly recommend this course… David is a great coach, he will not stop until you come out this journey a hero!”

Natalie Magosha

Marketing Manager

Discovery Invest

“A platform for behaviour change.”

“What's unique about David is the speed and efficiency with which he combines theory with practical application to ensure a platform for behaviour change is delivered.

This element surpassed that of other courses we’ve embarked on - placing people in an environment which allows for real-time immediate growth. Some of my team's comments were “I have taken away skills I know I will use for the rest of my career as well as in my personal life”. Our teams found the experience “fresh” and finished the course feeling excited.

David’s coaching stems from his own personal development journey, which means that he knows what it takes to effect personal behaviour change. Through deep insights and observation, he identifies the underlying drivers of your behaviour to identify simple and easily implementable solutions.”

Jennifer Arendse

Executive Head of Marketing

Discovery Invest

“I feel more connected when communicating”

“Heartfelt thanks! David is a delightful, totally engaged presenter and coach… During our coaching session, David was an excellent listener, uses very effective practicing tools during the session for one to express yourself, and provides constructive feedback and brilliant tips, with really manageable shifts to make change possible from day one.


I feel more connected when communicating as a result, and would highly recommend David for anyone seeking a permanent improvement in their communication skills.”

Veronica Chisanga

Senior Manager

Credit Guarantee Insurance Corp

“Measurably better outcomes than previous business school solutions”

“David achieved measurably better outcomes than previous business school solutions we have used to accelerate our talent’s transition into leaders.

What makes it even more remarkable is that it was delivered at significantly less cost, achieved in far less time, and was a genuinely enjoyable (though highly challenging) experience for the talent who were selected for it.”

Yuleesha Naidoo

Executive Head of HR for Discovery Sales, Call Centre and Marketing Businesses

“Undoubtedly the best I have attended.”

I had the privilege of attending training that David presented over two days at Henley Business school. It had a deep impact on me in terms of defining and equipping me with what I need to work on for my personal development and growth.

The person and professional that David is made the training useful, relatable, impactful and undoubtedly the best I have attended yet.


I would highly recommend anyone to invest the time and funds to attend training offered and/or facilitated by David. Can't wait for another opportunity to engage him!

Andre Cedras

Data Science Manager

African Bank

“Thank you, David! Meeting you has unlocked a new level of personal growth for which I am truly grateful”

“Thank you, David! Meeting you has unlocked a new level of personal growth for which I am truly grateful. Your limitless energy is infectious and makes it really easy to stay captivated and enjoy your program”

Kavesh Reddy

Senior Manager of Behavioural Science

Standard Bank

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