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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.

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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Francesca Viti
Italy
Francesca andViti and
Senior Consultant and Executive coach

With over 15 years of consulting experience I’ve supported many leading organisations and people in their journey of change and development. I’m focused on uncovering a client’s needs and satisfying them with a rigorous theoretical approach, intuition, strategic thinking and sensitive interpersonal style. I’m inspired by adventure and I love sailing, walking and nature.

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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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Sam Rostas, Impact International
UK
Samantha andRostas
Global Lead

After 10 years leading the UK, I am now in a global role focused on two areas: one leading a people project, the other focused on marketing. I grew up through Impact as a marketer and love the buzz of building business through brand and storytelling. My other passion is the people and culture here, so this is the ideal combination for me. When I’m not working, I love spending time with my family, enjoying the outdoors and practicing yoga.

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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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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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Caroline Airey
UK
Caroline andAirey
Board Member

I joined Impact back in 1998 as a Management Accountant, and I am passionate about using financial information to inform and drive both short-term decision making and longer-term business strategy. I love living in the Lake District and exploring the surrounding lakes and mountains!

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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.

Scott Rose, Impact
UK
Scott andRose
General Manager

My Impact career began in 2003 with a passion for adventure as a learning experience. Throughout my years at Impact, I've worked with incredibly talented colleagues, clients and people at all levels of leadership seeking to thrive at work. I love helping others make a difference in the world, am a bit of a science geek, a keen runner and love being a Dad to my three young boys.

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Agnieszka Nowak
Poland
Agnieszka andNowak
Account Manager

After years of being a client and fun of Impact, I became part of this amazing community. My extensive professional experience in HR, across various roles and industries, proves invaluable in conversations with our clients. At Impact, as an Account Manager, I embrace the essence of lifelong learning, discovering something new every day 😊 Personally, I have a passion for traveling, reading, and forest walks.

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Molly Shrimpton, Impact
UK
Molly andShrimpton
Content Editor
Having joined the business in 2019, I work as part of the marketing team, creating and editing written content for the Impact blog. I currently work part-time whilst I study for a PhD in the environmental humanities. Outside of work, I love fell walking, outdoor swimming, learning about conservation, and going on adventures with my crazy dog!
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Rachael Garner, Impact International
UK
Rachael andGarner
Global Account Director

I consult with our customers to understand their business aspirations and challenges before recommending a learning solution that is going to exceed their needs. I maintain close relationships to ensure they receive the best possible service. I work across all market sectors and levels; however, I'm particularly passionate about graduate development. Out of work, you’ll find me up a mountain attached to either a rope or a pair of skis.

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Joanna Rada, Senior Consultant
Poland
Joanna andRada
Senior Consultant

After many years in business environment, leading sales and operating teams, I decided to share my knowledge and practice as a coach and facilitator. Becoming Impact consultant enabled me to support leaders and talents in developing their leadership with a solid dose of the "fun factor" that Impact programs provide.

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Francesca Filzi
Italy
Francesca andFilzi
Accounting and Financial Support

I manage all Impact Italia accounting processes and love precision, tramezzini (look it up!) and silly jokes. I am also very appreciated for my former athletics experiences and I provide stretching sessions to all colleagues who need to exercise a bit after a long day in the office. I deal with a lot of internal and external stakeholders to make sure everything is ok with our clients, accounts, invoices and bills!

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Fiona Sheen
UK
Fiona andSheen
Account Manager

Customer Service and relationship management are my main focus and passion in all that I do. I enjoy thinking through solutions, working in partnership with my clients and team at Impact to achieve the best possible outcomes. I also enjoy developing long lasting professional customer relationships. Out of work I enjoy spending time with my two dogs and exploring the Yorkshire Dales which are close to my home as well as baking the odd cake or two.

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Sue Hunt
Sue andHunt
Board Member

My first school had the motto 'Aim High' and that has always resonated with me. I rise to a challenge, both personally & professionally, enjoying new situations and solving difficult & complex problems. I certainly had plenty of those as International Treasurer of Goldman Sachs and as a Director for the London 2012 Olympics & Paralympics. I joined the Board of Impact to help grow the business globally. It's great to be part of such a diverse global team!

Liz Wilson, Impact International
UK
Liz andWilson
Senior Consultant

Senior consultant, currently leading on digital learning production.

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Geraldina Sordi
Italy
Geraldina andSordi
Consultant & Sales Hub

Since I've joined Impact, I feel like my professional development grew exponentially. I feel very empowered by the company and by the values we bring each day into work. My goal is to learn how to best support our clients in every step of a consulting journey, as well as my colleagues, bringing a real change to the process. As a way to recharge I love to take long walks with my dog. My favourite sport is to hang out with friends, especially if in foreign countries!

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Lisa Priore Impact
USA
Lisa andFelloni
Finance Administrator

I am a highly experienced Accounting and Financial Management professional with expertise in problem solving, business communications, project management and customer relationships. I’m an enthusiastic leader, successful in liaising across all levels, handling confidential information and managing multiple priorities. I enjoy attending live events; cheering on my favourite sporting teams, watching my friend’s rock band, and supporting my daughter’s dance team.

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Cassie Cuppek
USA
Cassie andCuppek
Senior Consultant

When asked, "What do you do for work?" it is not uncommon for me to respond, "Light Bulb Moment Technician". I have been fortunate to be filled with such energy through my talent, leadership, and organisational development work. When I am not working, I take my role as Aunt Cassie with my husband, Josh, very seriously! It is the greatest thrill to teach them to ride motorcycles, do yoga, and explore the world.

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AlassaneDiop
Italy
Alassane andDiop
Consultant and Facilitator

I’m a consultant with an international and multicultural background and approach my work with contagious enthusiasm and commitment. My experience working with both large corporations and small startups gave me a deep insight into overcoming business operational hurdles and developing proactive trainings paths to grow and enhance teams. Over the years I’ve gained experience in facilitating and promoting dialogue in B2B partnerships and creating organizational innovation projects.

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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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Megan Bartlett
Australia
Megan andBartlett
Program Manager

Joining Impact in 2024 as an associate, I have had the pleasure of working alongside some incredible humans. I have since joined the full time team as a Program Manager, supporting projects from tender through to delivery and completion, partnering closely with both clients and colleagues. My work at Impact has given me broad exposure across organisations, expanding my perspective on what it truly means to support others thrive. In my free time you’ll find me in the ocean or immersed in the natural beauty we are surrounded by.

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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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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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