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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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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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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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Erin DeVito, Impact International
USA
Erin andDeVito
General Manager

As a mom to 4 girls I am constantly reminded that I am human, it's inescapable. I am completely honored that over the last 12 years I spend my days working with fantastic teams and amazing clients to do work that enables us all to embrace our individual humanness and work to create environments where people can grow and learn everyday! My hope and goal is together, the work we do today brings a brighter future for us all.

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Anna Ziółkowska
Poland
Anna andZiółkowska
Senior Consultant

I am happy to be responsible for creating and implementing new solutions as well as taking care of our clients and delivering adventurous programs. I see my purpose as working with people to help them be more aware of their power and inner wisdom and therefore to make our organisations and communities stronger. I get my energy from time with my gorgeous family, biking, reading in a hammock, listening and dancing to the music.

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Hillary Lawless Impact
USA
Hillary andO'Dell
Project Manager

I am a program manager, and I love that every day is different, from working on different tasks involved to make a program run smoothly to talking and meeting clients. I come from a hospitality background, so I love the client-facing aspect of my role here at Impact, as well as making sure every piece of the program is on schedule. Outside of work, I am always doing something like teaching dance, travelling, and going to the beach!

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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?

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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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.

Greg Bartlett
Australia
Greg andBartlett
Senior Consultant

I design, develop and manage solutions for key clients. I am passionate about helping people and businesses be at their best through practical and personal change. I love bringing innovative and challenging ideas to my work. I get my energy from time with my gorgeous family, my exciting work and my personal passion for sport and adventure.

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Anna Brulińska Impact International
Poland
Anna andBrulińska
Senior Consultant

I am responsible for knowledge management, new solutions and coordinating associates. An active coach, psychologist and psychotherapist, I have over 20 years experience as HR manager with orientation on quality and business-context solutions. I have a broad knowledge about HR processes, policies and tools, verified by implementation. I am a mother of a teenage boy and in my free time I love going to concerts and jazz singing.

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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!

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!

Ewa Rolley
Poland
Ewa andRolley
GM,

Change is my partner in business and life. “Be better” is my inspiration to continue to grow. I joined Impact 20 years ago and have worked in many different roles as a consultant, general manager, coach and business developer from offices in Europe and Asia. In my current role, I am responsible for supporting businesses in Poland and Central Europe, and I am also co-creating transformation solutions with clients. 

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Sam Parkin
UK
Samantha andParkin
Credit Controller

I'm part of the UK Accounts Department and I'm responsible for issuing all of Impact's sales invoices both electronically or by post in a multitude of currencies sent to our clients all over the world. I work closely with lots of my colleagues both here in the UK and overseas. Out of work I enjoy spending my time cycling in the beautiful Lake District Countryside, walking and spending time with family and friends.

 

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.

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. 

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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Jessica Cucco
Italy
Jessica andCucco
Senior Consultant and Executive coach

With over 25 year experience working as a Consultant and Executive Coach specialized in People Management and in topics related to organizational development, I had the chance to come across Impact after  an International experience in UAE and South Korea. Living abroad I got familar with different cultures and change. Coaching people along their transformational journey, supporting organizations throughout change is what really matters to me, my job!

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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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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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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Małgorzata Kniaź, konsultant Impact
Poland
Małgorzata andKniaź
Senior Consultant

Having experienced business from many perspectives, from manager to board member, I understand the opportunities and pressures leaders face. I am passionate about helping people discover their potential and find the courage to act. I believe the best leadership starts with self-awareness, strong relationships and a willingness to keep learning.

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Magdalena Cackowska, Impact International
Poland
Magdalena andCackowska
Financial Manager

My job is managing financial issues: reports, financial simulations, payments, also preparing contracts for clients, associates, employees and much much more… from coordinating travel arrangements to organising internal meetings and workshops. I love working with Impact people – I’ve worked here since 2003 and have no plans to move! I’m crazy about my small bit of land near the river and forests where I travel almost every weekend with my family and friends.

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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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