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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.

Warangkana Posinsomwong
Thailand
Warangkana and(Lek) andPosinsomwong
Asia Pacific Finance Director

I'm based in Thailand, a country of beautiful islands, good food and nice people. I have a lot of fun working with people around the world. I have more than two decades of international finance and accounting experience. My real challenge is working with Inland Revenue offices in different countries! I love to explore the world through reading and travel and one day wish to have a little cafe where people can sit and have a coffee or few drinks and craft together.

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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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Jaya Machet
Singapore
Jaya andMachet
Senior Consultant

My coaching & facilitation expertise builds on a strong foundation of 20+ years in senior management positions including global and regional roles. I guide leaders to their peak potential and help enhance their professional and personal impact. I grew up in India and then studied and worked in Switzerland for 23 years before moving to Singapore. This has helped me successfully bridge Eastern and Western thinking, with an in-depth understanding of both cultures. I am an avid reader and love to spend time in nature and travel. 

Glenda Chan, Singapore
Singapore
Glenda andChan
Account and Administrator

I joined Impact in 2014. My current role in finance allows me to connect with and support many colleagues across the region. My work has been enjoyable and worthwhile as I am able to contribute locally & regionally. I find Impact is a good place to work as there is a flexibility and work life balance. Working with a diverse team is fascinating. It is a place where you can be yourself and unique.

Martina Sconcerti, Impat Italy
Italy
Martina andSconcerti
Senior Consultant

My big mission has always been building people, teams and managers in the name of passion and authenticity. I do it through my expertise as a manager, as well as by coaching and  mentoring. We have to work so many hours in our lives, my wish is that most people possible would do it in the best way possible. I live in seafront, and I am a sailor. Sea is my key element, especially in winter, when nobody comes.

tonka watson
New Zealand
Tonka andWatson
Senior Consultant

As a former client, I jumped at the chance to work with Impact in 2002 and pursue my passion for inspiring others to realise their potential. I’m an avid reader and love to incorporate my learning into the leadership development programmes that I deliver; recent topics of interest include applied neuroscience & gender dynamics. Dogs feature widely in my life outside of work.

Sam Williams, Impact
UK
Sam andWilliams
Business Development

At 21 I had my first day of work at Impact in the stores... I am still making up for everything that happened that week. My passion is in sports coaching and development. My journey with Impact has taken me traveling around the world where I continue to meet and work with many amazing people. I am a big family man, and love surrounding myself with the best of company. If I am not herding terrifying highland cattle, I’ll be playing rugby or baking sponge cakes. 

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Yukiko Asano (Coco), Impact International
Japan
Yukiko andAsano(Coco)
Client Partner

I have worked at Impact Japan since 2015, coordinating the delivery of programmes. I support our consultants and delivery operations. What makes me happy is seeing my colleagues, clients and participants smile, as my job is supporting them. My hobby is collecting Starbucks Coffee mugs from around the world, although I don’t drink coffee personally!

Trudy Bridger, Impact
Australia
Trudy andBridger
Consultant

My role is to build strong, trusted partnerships with clients and help bring our shared purpose to life: liberating human potential and creating organisations that are truly worth working for. I’ve worked across a wide range of roles at Impact, giving me broad experience and a unique perspective on the business. Outside of work, you’ll usually find me out in nature, reading, cooking, or—more likely—chasing after my energetic toddler.

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Sarah Golding, Impact International
UK
Sarah andGolding
Head of Account Management

Here at Impact I have the pleasure of managing a portfolio of impressive global programmes and a number of our key clients. I like to simplify the complex, gain clarity where there is ambiguity and drive efficiency and quality through my project teams. I love meeting different people and understanding what makes them tick! I'm full of energy, constantly smiling and always ready for the next adventure.

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John Scott
New Zealand
John andScott
Consultant

People are at the heart of everything I do and I care deeply about ensuring individuals and teams have the skills, support and temperament to best deal with their future. In my spare time I chair the board of a local art gallery and support the development of our growing community of emerging and successful artists.

 

Roger Nielsen, Impact
Australia
Roger andNielsen
Senior Consultant

Over the past 16 years at Impact I've worked around the world with some truly wonderful people. I've been the lead facilitator on many large-scale initiatives focused on developing leadership capability, high performing teams and coaching. I love the outdoors, and spend many hours at the beach with my wife and daughter.

 

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Tim Lofthouse Impact
UK
Tim and(Lofty) andLofthouse
Support

I support delivery of high quality, safe and challenging programmes and keep the operations infrastructure in a safe and workable condition. I have been lucky to have worked in some amazing places around the world with some amazing colleagues and participants. Working from Base still takes some beating though! When not working I enjoy having adventures with my family, exploring the Lakes and keeping fit by running, climbing and riding my Cyclocross bike.

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Manny Larenas
USA
Manuel and(Manny) andLarenas
Senior Consultant

I am devoted to applying theory, practical application and innovation to people development. As a lead designer and facilitator with 10+ years of experience, I deliver custom client solutions globally. My insatiable curiosity stays satisfied by reading, researching and exploring the world. I love the culinary arts, and although I enjoy cooking, my passion is simply being the consumer of freshly made, delectable dishes. 

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Pete Hallworth
Italy
Pete andHallworth
Senior Consultant and Facilitator

I have been active with Impact for several years after an international career in sales and marketing. One of my main passions is to foster better leadership. Leaders that inspire, that provide their team with development opportunities, and that have vision and courage will change the world; for the better.  Another passion is helping start-up entrepreneurs get off the ground. Kindness and curiosity are two words I aspire to live by.  It is also very important to me to be kind to our planet.  It’s the only one we have.

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Susi Biancucci
Italy
Susi andBiancucci
Office Support

I joined Impact Italy 20 years ago and was immediately love! This is a fantastic place with fantastic people where to work! I support our team and I coordinating the Rome Office. I am a tireless and curious person, always looking for new things to learn. In my private life, I love cooking “pasta alla Carbonara”, reading and when I have the time I take refuge in my beloved Tuscany!

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Andy Dickson, Impact International
UK
Andy andDickson
Head of Global Customer Solutions Development

I have spent my working life helping organisations, teams and people to be the best that they can be. I believe in the power of expertly designed and facilitated experiential learning and the exciting potential that lies within every person given the right opportunity. In my work I believe that managers and leaders have a responsibility to ensure work is exciting, fulfilling and aspirational for the people working in and with their organisations.

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Josh Williams, Impact
UK
Josh andWilliams
Consultant

I enjoy working with people, teams and organisations to perform to their potential. My outdoor leadership degree, time working in the outdoors and coaching has built a foundation for me which I have had the privilege to build upon for the last eight years at Impact working as part of the delivery team with various clients. I have a keen interest in areas of the business such as leadership development, wellbeing and experiential learning.

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Yoshinori (Kite) Kaino, International
Japan
Yoshinori andKaino(Kite) and
Chief Executive Officer

I am responsible for “Re-Born Strategy” in Impact Japan, I am passionate about developing people and our organisation by executing all Re-Born strategic agendas. As a facilitator, I love creating and sharing the precious moments together with executives and managers who are reflectively asking themselves what leadership they would like to realise in their life/work. What I love most is drinking after working hard to make effort in realising my vision.

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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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Karen Jaques Impact International
UK
Dr andKaren andJaques
Associate

I love exploring issues that my clients face and helping to find practical solutions. My other roles include developing Impact’s thinking around leadership and team development, and using systemic perspectives to encourage responsible leadership in business and society. Convincing, articulate and credible as a facilitator, I'm passionate about helping people realise their full potential...including myself! I love ski-mountaineering and any ways to access wild places.

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Mirko Brinoni
Italy
Mirko andBrinoni
Consultant and Facilitator

My career has been very weird and challenging so far. I graduated in industrial chemistry, then worked as a research scientist. In 2014 I moved to the energy field as consultant and account manager in charge of technical trainings and management courses. This job lasted 10 years and made me passionate about human resources management. I joined Impact where I can improve my skills as a trainer and facilitator and cooperate with a real great team.

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Shino Takahashi, Impact International
Japan
Shino andTakahashi(Shelly)
Assistant Manager, Human Development

'Making Work Enjoyable for Children' I’ve spent 17 years in retail, gaining experience in sales, customer service, training, HR, and recruitment. This taught me that business growth relies on people’s growth, inspiring me to pursue my own and motivate children. A key moment was a training program at Impact Co. 11 years ago, sparking my passion for talent and organizational development. As a working mom, I focus on balance—committing to work weekdays and spending time with my toddler daughter on weekends. This balance is key. 

Ilaria Capogrossi Guarna
Italy
Ilaria andCapogrossi andGuarna
Key Account Support

I had the chance to join Impact Italy in June 2022 Joining Impact has added value to my professional background giving me the opportunity to work with very special collegues in a world company.I support our team and I coordinate the Milan Office.

In my spare time I like to travel to discover new destinations and people. I love animals and sports, especially skiing.

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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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