What our clients say

What our clients say

“Thanks again for all the time and work you put into the preparation and delivery of our strategy session. Despite it being a challenging day at times, you struck an excellent balance between letting us dig into issues and explore everyone’s perspectives yet also moving us through the agenda to get outcomes. I really think this will help us achieve our strategic objectives.”

Judith Pollock, Chair of Trustees, The Hunger Project UK


“Thank you for facilitating the 2-day Leadership Team Tune Up for the UK Parliament Strategic Estates Board of Directors, it exceeded my expectations.”

“Your thorough research and preparation prior to the workshops, including the insightful one-to-one Harrison Assessment interpretation meetings, ensured that the workshops were really focused on meeting our needs. You enabled each director to increase their self-awareness, and identify their strengths and potential blind-spots. The tools you gave us on day one meant we were better equipped to participate in constructive conflict and address some difficult issues in a solution-oriented way without anyone becoming defensive.

On day two it was great to see the way you were able to adapt to the needs of the group and the issues raised.  Your expert facilitation helped us to explore and map out clearly the vast scope of the challenges ahead. This helped us all to see the major dependencies and highlighted the need for more effective communication at critical points.

Many of the directors said that this was the best meeting we have ever had as a Board, because we covered a lot of ground, aired important issues, and shared a common vision of what success looks like.  It was also very practical because we agreed on several actions points that mean we are better prepared for the challenges ahead.”

David Hemming, Managing Director, Strategic Estates, UK Parliament


 “What we achieved in this session is more than in any other senior management team meeting we’ve ever had.”  

“It was really useful to understand the ‘Why’ and labelling problem issues so we can work on them objectively.” 

“This is creating more accountability in the team and there is now a great willingness to work more closely together and to share skills, experience and resources.” 

“It was very interesting to see the communication needs of others so you can be more effective when discussing issues.”

Various Senior Managers at Foster Property Management


“I just want to say a big thank you for today – for your energy, passion and your expertise. Thank you for being so flexible in managing the day and responding to different needs.  I feel really positive that we have made a good start in engaging staff with the philosophy of coaching and you started to shift some mind-sets today. I look forward to continuing this work with you.”

Jayne Morgan, Director of Quality and Standards, London South East Colleges.


“David has been Instrumental in the success of my business. I first was introduced to David as my Mentor a few years ago via the Princes Trust. He coached me through hiring my first staff/office and ultimately putting stellar management systems in place to achieve risk-free company growth. Quite simply amazing. In fact he was so good that after his initial Mentorship period was over I hired him as my resident HR Consultant as the business grew from a small business into a medium sized Enterprise. David has been with me from the beginning – initially a laptop/bedroom business, and helped me grow the business into what it is today. I am now lucky enough to call David a friend. I’m not sure if there is a better HR Consultant in London.”

Ben Jayakody, MD, Prime Loops and Sound Nation


“Hi David and Alli, Just to let you know we have offered the job as Project Assistant – thank you for your assistance using the Harrison Approach.  It was an incredibly useful tool when selecting the candidates.

Many thanks, “

Ben Milton, Director, The Event Business


“Last week I had the pleasure of learning all about the Harrison Assessment with David Klaasen and Alli Gibbons from Talent4Performance. Their course was an intensive deep dive into the Harrison Approach and how we can utilise the various reports within our business to help drive development through awareness of behaviours and impacts, engagement and leadership. Thanks for an amazing week of learning and for bringing Harrison Assessments to life.”

Samantha Williams, Talent Development and Succession Planning at Allegis Global Solutions


“I recently attended training on Harrison Assessments with David and cannot recommend him enough. The training was very engaging and tailored to my needs and those of the audience. He drew upon his experience and studies to complement the material that was being taught which made for a very interesting and informative course.”

Belinda (Suttor) Kielly, Talent Development Manager – APAC at Allegis Global Solutions




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