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Inspiring success through positivity and trust.


David Penglase is one of Australia’s most booked and rebooked conference and live-stream keynote speakers on Sales Success. He is a behavioural scientist, best-selling author and ‘Hall of Fame' keynote speaker, sharing evidence-based strategies to help sales leaders and their teams fast-track trust to earn more new, repeat, and referral business.

Inducted into Australia's Professional Speakers Hall of Fame, David travels nationally and internationally, working with top-tier corporations and associations to deliver his high-energy, high-content, and entertaining presentations, that wow audiences, shift mindsets and change behaviours.

Supporting over two decades of conference speaking experience, David has degrees in Business and the Psychology of Adult Learning, an MBA, a Master's Degree in Professional Ethics, and a Master of Science degree in Applied Positive Psychology.

As an author and prolific researcher and writer, David’s books include The Art & Science of Building Customer Trust - How to fast-track trust and earn new, repeat and referral business, and LIVING in the Light of Day - How to Avoid the ‘Success Trap’, strive to be your best, and live a meaningful, flourishing, and prosperous life.

Talking Points

Sales & Business Growth

The Art and Science of Building Customer Trust: How to fast-track trust in disruptive and competitive markets to win more new, repeat and referral clients

Leader and Team Culture

How to harness the power of trust to impact every measure of success.

Success Mindsets

How to be more proactively resilient in tough times.

Presenting and Influencing

A Masterclass Series on Positive Influencing and Public Speaking.
One of the advisers at the Sydney program had just spent the weekend at a world renown motivational speaker's event and commented to me that he got more value out of your 45 minute presentation, which is a great reflection on the power of your presentation! Comminsure

David’s personal, funny stories made the whole messaging very genuine and enjoyable which resulted in the great audience engagement we all felt throughout the presentation. I would highlight again how much it meant that you dedicated your entire day to observe the participants and listen to all sessions in order to gain a better understanding of the context. While your very detailed preparation was well grounded by the several phone briefings and personal meetings, you were still willing to come along and learn more about the organisation and our people. Nowadays this is a very rare experience and it is greatly appreciated.


As the keynote speaker at our Franchise Conference, David was engaging, motivational and entertaining. The feedback we received was more than positive and we were impressed with how his presentation was tailored to our personal needs.

LJ Hooker

David was the anchor speaker responsible for closing our 2016 Broker 2020 roadshow to over 1,400 brokers over 4 events nationally. He proved a great choice due to his enthusiasm, humour and ability to tie the event outcomes together. I was very impressed by David's choice to attend the first full day of the Broker 2020 series, to ensure he successfully closed the event. I would not have any hesitation in recommending David for future events.


Congratulation David! We have over the past thirty seven years many of the best speakers and motivators both locally and abroad and what you delivered to our team was brilliant. You listened to our brief and delivered it just the way we wanted with your slant, and your behavioural science. David, I was glued to it! I couldn’t have asked for a better delivery. We can’t wait for sessions two and three.

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