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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.

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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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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Stephen Smith, Impact
UK
Stephen andSmith
Digital Team

I love the diversity my role brings, I work with many types of organisations and interact with some amazing people. I’m a problem solver and love tinkering with new technology to see what’s around the corner. Outside of work my passion is cycling and enjoying time with my family.

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Marta Lamberti
Italy
Marta andLamberti
Senior Consultant and Facilitator

Hi! I am an occupational psychologist, coach and trainer! I have been working for over 20 years to help companies develop and enhance their greatest capital, their people! I met Impact many and many years ago, and I am still proudly part of it! In my spare time I am a theatre actress, a traveller, but above all... a mum!

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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Natassja Gale
UK
Natassja andGale
Strategic Designer (Digital Operations)

Bridging future-oriented research, innovation, and design principles and practices, my focus is on optimising our core business through developing and delivering resilient, human-centred solutions. I bring energy, raise questions, push boundaries and break rules. The most vital part of my life is the people within it, as the relationships we hold with one another are everything.

Nao Matsushita(Noa), Impact International
Japan
Nao andMatsushita(Noa)
Coordinator

'Helping People Shine on Their Own Stage' As a restaurant manager, I wanted to create more than just a place to eat. By drawing out each team member’s strengths and aspirations, I saw the power of a team that values individuality. This led me to study coaching. I later realized that growth also depends on the organization, so I now study organizational development. My goal is to help people and organizations grow together, enabling everyone to shine as themselves and fulfill their potential.

Daniel Osborn
UK
Daniel andOsborn
Business Data Analyst

Having the job title 'analyst' means that I've been lucky enough to get involved in a wide range of projects both internally and working with clients. I love helping people get the most out of the tools they are using, making processes as efficient as possible and understanding data – all of which is part of my work every day. Outside of work, you’ll usually find me in the Lake District somewhere with my family.

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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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Agnese Calcagno
Italy
Agnese andCalcagno
Senior Consultant and Facilitator

I joined Impact in 2022 after many years in the Human Resources Departments, Career development path in the Communication, Marketing, Sales and CRM Departments of multinational companies and five years as a Consultant and Coach. I have developed very solid skills in all the processes that regulate the life and development of people and results in organizations. I love travelling, but the most exciting journey has always been the one I do with people.

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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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Phil Poole, Impact International
UK
Phil andPoole
Global Safety Advisor

I’ve been working at Impact for over 30 years and now advise on Safety. It’s a demanding job, but Impact also allows me time to have my own adventures. I am a qualified International mountain guide and run yearly expeditions to East Greenland. These experiences give me a healthy dose of “on the edge” experiences, helping me to sharpen my skills and foster a common sense approach to safety matters. There's always something different to give advice on.

Dileepan Dhanasekaran
Singapore
Dileepan andDhanasekaran
Digital Business Support Analyst

Joining Impact was one of the best decisions I have ever made. I am responsible for digital enablement and transformation across our global business, data protection programmes, amongst others. I really love the culture at Impact as it is very people-centric, focus driven and a dynamic workspace. Outside work, you will find me playing badminton, swimming, taking long drives and hanging out with friends.

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Tony Ren, Impact
China and Hong Kong
Tony andRen
Country Manager

Having worked at Impact's UK HQ and Tokyo office, I have been heading up Impact China and developing new business in China and Asia Pacific since 2009. As a professional consultant, I have over fifteen years of management experience covering strategic planning, organizational effectiveness, business development, and worldwide operational excellence. I am extensively involved in the development and delivery of talent development projects at all levels of organisations. 

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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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Anthony Barrett
UK
Anthony andBarrett
Senior Consultant

I am an experiential learning consultant & coach with a passion for adventure, the wild places and sustainability. I design & deliver learning experiences that help people & organisations strengthen the bridge between the business need for results and the human need for connection. I help people explore their “awareness of self” and how they can better engage with the people, systems and organisations that surround them.

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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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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!

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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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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Romina Henle
Italy
Romina andHenle
Senior Consultant and Facilitator

Since 2018 I collaborate with Impact as an associate. I love facilitating its varied experiential learning programs, online & in person. I am mainly involved in the delivery for international groups and teams. It is enriching to collaborate with Impact’s colleagues, getting to know different industries, working cultures, professional profiles and much more. I enjoy being in nature, experimenting new things in life and experiencing the different customs and traditions of our world. 

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Dave Milligan, Impact International
UK
Dave andMilligan
Support

In support we deliver on programs and manage day-to-day operations and infrastructure. I really enjoy my role as it’s very diverse, one day I am canoeing on Windermere and the next cleaning boots! My favourite programs feature outdoor activities and journeys. People see me as a steady pair of hands and a person who does a quality, professional job. Outside work I keep myself fit and active, and enjoy chilling out with my wife Emma and travelling in our camper van.

Hannah Reeves
UK
Hannah andReeves
Account Manager

I am passionate about helping organisations, teams, and people be the best they can be. Not all girls are made of sugar and spice and all things nice. Some girls are made of adventure, fine beer, brains and no fear.

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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.

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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