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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.

Diana Fritz
USA
Diana andFritz
Account Director

As an Account Director with Impact, I’m able to leverage my ten years of Business Development and Account Management experience.  I thrive in environments where I am able to develop and uncover new opportunities with partners and businesses. Most of all, I am a people person and love building trusting relationships. In my spare time, you will find me spending time with my husband, two boys and our dog.

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Damiao Lo
China and Hong Kong
Damiao andLo and
Senior Consultant

Working with Impact allows me to cross-germinate ideas and learnings between clients globally. In an ever-changing, dynamic business environment, I promote everyone to be designers of possibilities.

Ilaria Staltari
Italy
Ilaria andStaltari
Consultant and Facilitator

I joined Impact Italia in 2021 and the magic started happening! Energy, active listening, and continuous exchange are the key elements that characterize my personal and professional life. My purpose here is to design and facilitate ‘ad hoc’ learning solutions that can release transformation and changement regarding the different spectrum of needs that can have organizations. In my spare time I practice dance and yoga, I am travel-addicted and I love to cook to share the results with my loved ones.

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Itsuyo Watanabe(Barbara)
Japan
Itsuyo andWatanabe(Barbara) and
Director, Brand Enhancement Department

As a consultant, I like Impact's programmes because every one of our projects could make the participants think deeply about their issues in the workplace, and move forward for their business success. I am excited when exploring a solution for my clients' current and future business challenges. Besides my job, I like cooking, travelling, fine arts, musicals, Japanese KABUKI, opera etc.

Arianna Bianchi
Italy
Arianna andBianchi
Consultant and Facilitator

As a consultant, I hope to be a catalyst for change, helping others to discover what their real needs are. Empathy, curiosity, creativity, organisation and strong sense of duty are the things that most characterise me. I love the adventure and the discovery of travelling, organising outdoor trips with friends in close contact with nature… But also sharing a gin lemon or a barbecue at home is not so bad!

Alicja Pietrasz, Marketing Executive
UK
Alicja andPietrasz
Digital Marketing Executive

As a Digital Marketing Executive I am responsible for a broad range of global marketing projects and activities. I believe in Impact's mission, values, methodology and expertise, and I hope that thanks to my work more people around the world will hear about the great changes we make for organisations and their people. I am a nomadic soul and travel often to discover, experience and learn how the world and people differ.

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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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Holly Higham Impact International
UK
Holly andHigham
Global Lead, Marketing

My job is to share amazing client stories with the world through integrated marketing campaigns. I love live events and building Impact's community, as well as research and content creation. I live for adventure...and cake!

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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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Agata Stanik, General Manager, Country Manager
Poland
Agata andStanik
Country Manager

I am passionate about helping organisations become worth working for and making the world a better place, achieving long term sustainability for a safe future. At Impact I can grow and flourish to my full potential and at my own pace. Together with me grow our partners and our relationships, evolving into true friendships. Ecology, whether it comes to the planet, environment or people and relations, is a value of great importance to me.

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Kelly Morrison
UK
Kelly andMorrison
Project Manager

As a project manager, I am responsible for the end to end implementation of a programme, coordinating and managing the client services team and ensuring everything runs to schedule. I’m a massive fan of Impact, its values and ethos, and I’m incredibly proud to be a part of the company. I’m a busy mum of twins and a Bulldog, so I enjoy travelling and spending time with my friends and family. 

 

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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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Chantana Prapasri, Impact
Thailand
Chantana andPrapasri and"FG"
Finance and Admin

Since joining Impact Thailand in 2006, I have been more energetic and enthusiastic to come to work. It is the best workplace that I can be myself. Everyday at work is great for me.

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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Yasushi Igarashi, Impact International
Japan
Yasushi andIgarashi(Yasu)
Safety Quality Controller, Master Coordinator

Before Joining Impact in 2002 I worked as an outdoor guide for nature tourism, kayaking and trekking in the ocean and forest. Using this experience, my strengths are in creating and coordinating programmes that provide learning experiences through outdoor activities. Beyond this role I wear several different hats, such as managing our website and managing H&S. Personally, I love to do challenging journeys by sea kayak and bike in many countries.

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?

Yoshinobu (Hosshan) Hosoki, Impact International
Japan
Yoshinobu andHosoki(Hosshan)
Manager, Business Consulting Department

Being a manager of the delivery team in Impact Japan, I have been putting great effort and energy into realising our “Re-Born Strategy” from the delivery quality aspect. For my leadership style, creating trust is the most important factor. I support my team by creating trusting relationships, and as a facilitator, I use this quality to create a completely safe and open learning space in programmes. I love having a good time with people, drinking and karaoke.

Daniele Filzi
Italy
Daniele andFilzi
Experiential Solutions Specialist

With over 20 years at Impact, I've contributed to the design and delivery of over a thousand programmes. And what if the secret of success is to continue to refine something even if you've done it dozens of times? Outside of work, I like gardening and interior design. I live on the crest of an extinct volcano, with the Mediterranean Sea to my west. After sunset I keep fit by jogging around a golf course.

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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Kathyann Waple Impact
UK
Kathyann andWaple
Head of Digital Transformation

I am all about meaningful relationships. I’m good at detail but love the big picture. Business strategy excites me and implementation more so! My role is to head up our digital strategy and take Impact’s experiential face to face practice in to the digital world, strengthening our blended programme work and building digital solutions that serve our clients’ needs in these times of exponential change. I’m a daughter, sister, aunty, wife and mum. I adore sport and adventure, especially cycling, snowboarding, swimming and surfing.

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Anthony Cox
UK
Anthony andCox
IT Support

I help to support the entire business with all of their IT related needs. I have had a large passion for all things technology since I was a kid. In my spare time, you can catch me listening to music, on my PlayStation or playing Dungeons and Dragons. 

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Delfino Corti
Italy
Delfino andCorti
Senior Consultant and Executive coach

I see life as a gift and a journey. I bring in my backpack some of the experiences I had the luck to have: nuclear engineering and 25 years as a manager in various industries in various parts of the globe. And then Impact. I feel excited when I see the very essence of situations emerge: in individuals, groups, communities, and organisations. I am fond of endurance sports and am a passionate soul explorer. 

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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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Annie Tan, Regional Account Director
Singapore
Annie andTan
Regional Account Director

As an avid explorer of adventure and lover of cultures, I’m glad to have found my home base with Impact. My role is all about sparkling curiosity, connecting values, and empowering lives through meaningful work, passion, and fun! Coffee and Tea are my best friends, and I love taking road trips on bikes and capturing candid moments of people and food! You can always find me in the biography section of any bookstore!

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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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