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Meet the team

Impact is bursting with energetic, talented and passionate people who want to make a difference. Our people work from over 30 global locations.

Aidan Keough
Australia
Aidan andKeough
Senior Consultant

I help people gain insights into themselves and their team so they can improve as individuals and work more effectively together. As a facilitator I create the right learning environment and work alongside participants providing a balance of challenge and support. I bring over 20 years of senior leadership experience. I love learning, the outdoors and am fascinated with horses. I live on a small farm with my wife and two teenage children, and a herd of horses.

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Hisae Hashimoto, Impact International
Japan
Hisae andHashimoto(Sae)
Facilitator

I provide inspiring opportunities for leaders to explore possibilities in expanding sustainable business and organisational development. As a staff support manager I have been leading operations such as talent acquisitions. Supporting others and organisations to expand their full potential is my passion. I enjoy ensuring we have a unique workplace where we can maximise potential and strengths. I love climbing mountains, hot springs and good organic foods.

Tomasz Sławiński, Impact konsultant
Poland
Tomasz andSławiński
Senior Consultant

I am fascinated by moments of change and new beginnings. As a coach, I support leaders in building confidence, influence and authentic leadership. Before moving into coaching, I spent many years performing on opera stages, and I still draw on those experiences when helping clients find their voice and presence.

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Vesna Lorenc, Senior Consultant
Poland
Vesna andLorenc
Senior Consultant

I have been supporting people in communication for 20 years. Initially as a consultant and currently as a trainer, coach, and mediator. I am passionate about people and the complexity of human nature, and like to help tame this complexity for a specific purpose. Socially involved, I'm also a mother of three. Between all this, I find balance in meditation, yoga and nature.

David Cooper, Impact
USA
David andCooper
Senior Consultant

I have been working in L&D since 1992 and joined Impact in 2004, providing design, management, and delivery expertise to clients around the globe. Current initiatives have me consulting with clients from multiple business sectors to coach and facilitate the development of key leadership talent. I am also a past adventure consultant and professional rock climbing guide with numerous alpine and big wall ascents around the world.

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Sam Egerton
Singapore
Sam andEgerton
General Manager

An adventurer, I was raised in the UK and have lived and worked in Eastern Europe, Spain and now (since 2012) Asia, where I head up Impact’s Singapore Office. A fierce supporter of the authentic self and advocate for individual growth, I care deeply for my team and clients, wanting them to shine for who they are. I have a keen sense of challenge and adventure, and away from work, you can find me with my young family (usually outdoors!).

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Yusuke Kobayashi (Baya), Impact International
Japan
Yusuke andKobayashi(Baya)
Assistant Manager, Client Partner

'Continuing to "enjoy" life'
My lifelong mission is to continue positively influencing both myself and those around me, while persistently seeking enjoyment.
Throughout my career, I've had various experiences, from utilizing cutting-edge technology in logistics to engaging in gritty tasks. Through these experiences, I've realized the importance of finding meaning and joy in everything I do. Although sustaining this mindset is not easy, I am committed to continuous learning to become a professional to bring a positive impact to people and organisations.

Ethan Brown
UK
Ethan andBrown
Accounts

I work in accounts at Impact. I am based in the Windermere office (UK).

Clive Barrow
New Zealand
Clive andBarrow
Consultant

I’ve had a passion for enriching lives through deeply practical experiential learning, and immersion in adventure around the world for most of my career. As a British Army officer, expedition leader, leadership consultant and executive coach I’ve had the enormous privilege to facilitate learning experiences for others in over 40 different countries. My greatest gift - apart from my wife and kids - doing the work I love!

Akira Matsumoto (Mikey), Impact International
Japan
Akira andMatsumoto(Mikey)
Assistant Manager, Facilitator

With nearly 18 years in the retail industry, I held roles such as sales, store manager, trainer, and area manager. These experiences taught me that when people grow, organizations grow. Supporting others made me reflect on my own growth and whether I still had something to offer. To challenge myself, I moved into a new industry. Now, I work to create training experiences that resonate emotionally and leave a lasting impression—while continuing to grow with my clients. 

Rafal Kamilski, Impact International
Poland
Rafal andKamilski
Operational Manager

I am responsible for our support team and coordinating the Warsaw office. I project manage, which includes monitoring facilitation, communicating with partners, background logistics and managing course equipment for our fantastic experiential projects. Since joining in 2005 my role has developed through office manager and H&S advisor. I love what I do and the people I work with. Personally, I am getting to know my young son and understand his world. Life is a journey.

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Mario GianAndrea, Impact Italy
Italy
Mario andGianAndrea
President and Founder

I’ve been many in my working life: an HR Director, an entrepreneur, a leader, a coach, a salesman, a visionary, a confidant, a manager. And a friend. And I am still excited (and sometimes anxious) when I meet a new group of people. I genuinely enjoy it! This is the reason I'll probably work for another decade! The only difference compared to the past: today I can afford to only work on projects and with people that I really like and that gives me the feeling that it will be great fun!

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Lou McDonald, Impact
UK
Lou andMcDonald
Head of Brand

Sum myself up in a paragraph? There’s a challenge! And maybe a good starting point. I like challenge. I like the challenge of grabbing attention with interesting, useful and relevant marketing. From a new website or re-brand to a sell-out festival, for me it’s all about customer first. I like a physical challenge too, and the challenge of how long I can last without listening to music!

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David Williams, Impact International
UK
David andWilliams
The Boss!

I co-founded Impact in 1980 to explore adventure and experiential learning in people development. It worked! We now inspire and develop people worldwide. Shared values, a common purpose and a spirit of adventure bind us together. With over 200 colleagues working in the UK, Europe, America and Asia Pacific, we have a solid reputation for enabling clients to build leadership capacity and navigate complex change. To stay grounded, I rear rare breed cattle and sheep.

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Daniel Giejbatow, Senior Consultant
Poland
Daniel andGiejbatow
Senior Consultant

As a consultant and the manager, for the last 20 years, I was focused on practical aspects of business transformation. Managing HR field I had a chance to collect best practices within telecommunication and financial sectors. I have experience in leading mergers and acquisitions of a large organisations. I am a psychologist and psychotherapist by education and graduated with MBA and AMP business studies. I love outdoor activities, especially in the mountains.

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Dave Hardegger, Impact
New Zealand
Dave andHardegger
General Manager, New Zealand
Asia Lead - Solutions & Practice

I love what I do! Each day is so different and brings challenges, interactions, and rewards. In my different roles I get to lead, mentor, coach, create solutions, and deliver life-changing experiences. I’m lucky to be surrounded by amazing colleagues - whom I get to call friends. I relax by spending time in nature – usually with my loving family but with the occasional solo adventure as well!

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Marjolein Smith
UK
Marjolein andSmith
Graphic Designer

Born in the Netherlands, I aim for simplicity, clarity and efficiency in my designs and processes. I appreciate Dutch, German and Swiss designs for their geometric boldness and witty solutions as well as the minimalism and sense of calm in modern Japanese design. To soothe my creative brain, I put on my running shoes and head for the beautiful hills that surround me to rediscover my peace and tranquillity.

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Sarah Brammeier
UK
Sarah andBrammeier
Senior Consultant

A global leadership facilitator/coach, I partner with you to meet challenges in uncertain, complex environments. I focus on what works in order to create programmes where learning is used right away. I am a bad surfer/golfer, lapsed runner and improving tennis player.

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Zuzanna Naruszweicz, Impact
Poland
Zuzanna andNaruszewicz
Head of Consultants & Project Management

I love the moments when people start seeing their challenges from a different perspective and discover new possibilities for action. I design learning experiences that connect curiosity about people with curiosity about business. At Impact, I value the freedom to experiment, learn and create solutions that make a real difference. Outside work, you will most likely find me on a bike or behind a camera somewhere on the road.

Yuki Endo, Japan
Japan
Yuki andEndo(Snowpea)
Client Partner

I started my career at a global automobile parts manufacturing company, where I got interested in people development. Currently I am enjoying my journey at Impact, improving my knowledge and skills, to find the best solutions for our clients. I enjoy travelling both in Japan and overseas. I like reading books and staying indoors, but also enjoy scuba diving and going outside to see friends and new experiences.

Yutaka Sugimoto, Impact
Japan
Yutaka andSugimoto(Yutaka)
Chief Glocal Officer

I was inspired by experiential learning on a leadership programme in 1992 and have worked for Impact ever since. Experiential learning and reflection alongside theory and skills input is a platform for real behaviour change for leaders. My passion is building an organisation worth working for and supporting our clients by developing people. I play football and enjoy discussing the match with friends. Drinking beer maybe more important than playing football.

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David Muir, Impact
China and Hong Kong
David andMuir
Client Solutions

An avid traveller and outdoor adventure enthusiast I jump at the opportunity to try new things and am a pioneer at heart. I have spent the better part of the last 10 years working in experiential education and am deeply committed to developing responsible and sustainable leadership. I am passionate about inspiring, motivating and engaging people to fulfil their potential.

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Elena Ceriotti
Italy
Elena andCeriotti
President, Executive Coach

Find a job you love and you will never work a single day in your live! I do everything from managing the business, to inspiring people and helping clients to develop as sustainable business in which the quality of leadership is crucial. People describe me as a passionate and fast moving person, able to quickly connect to the culture and the needs of each organisation and to co-design powerful solutions. I love adventure which is about saying “yes” to life.

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Claire Hewick, Impact
UK
Claire andHewick
Support

I was an associate for Impact for 21 years before becoming part of the full-time team. I love the sense of fun, friendship, camaraderie and the way Impact works. Oh, by the way I’m on the Technical Support Team – ropes and boats, programme design and logistics and lots of other things too. I love my job, get loads of out of it, meet lots of amazing people and learn new things all the time – how lucky am I?

Our awards

Year after year, we continue to be acknowledged for the quality and effectiveness of our partnerships with clients and for our own work on building Impact as an organisation worth working for.

2026 Training Industry Top 20 Leadership Training Company
2026 Training Industry Top 20 Leadership Training Company

Impact is a 2026 Top 20 Leadership Training Company. Training Industry independently assess the training marketplace for top providers. Their Top Leadership Training List, based on capabilities and expertise, includes Impact for the 16th consecutive year. 

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Chief Learning Officer gold award 2025
Gold Excellence in Partnership Award from Chief Learning Officer 2025

Impact won the gold award at the Chief Learning Officer 2025 Learning in Practice Awards for Excellence in Partnership. This recognises our support of Bristol Myers Squibb in implementing a learning and development programme.

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