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About us

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.

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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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Ryan McCabe, Impact
USA
Ryan andMcCabe
Senior Consultant

I’m passionate about learning and helping people get the best out of themselves. I spent over 10 years in Learning & Development with a Fortune 15 company helping develop and deliver programs to Executives, Middle Management, and Aspiring Leaders from all different parts of the business. I believe that understanding and leveraging diversity is one of the biggest strengths of any organization and I really enjoy helping groups work towards that reality. When I’m not working, I enjoy spending time with my wife and 2 daughters as well as rooting for any and all Philly sports teams. I also have a pretty sweet record collection.

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Michal Zawadzki, Senior Consultant
Poland
Michał andZawadzki
Senior Consultant

Having a limited number of words to describe myself I choose...that is one of the keywords, among decide, like, wonder. There are many others. Working with people, I value being aware – of a person, a group, and also of words being used. I think of them as a code passing through our minds – all that is within the light of consciousness shapes our experiences and reactions towards the world. So, what do you choose?

Simon Wheatley, Impact International
UK
Simon andWheatley
Senior Consultant

Analogue at birth, digital by requirement. I don’t do Facebook, and have nothing to do with hashtags. Is this bio going online? Eurgh! I am an eye-to-eye, face-to-face human being. I elevate small talk to medium talk. Then, (on a good day) to infinity and beyond. That’s my job. Favourite pastimes: Good days. Woodland crafts, festivals, and campfires. Specialist skills: Reading body language; parallel parking.

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Stella Privitello
Italy
Stella andPrivitello
Senior Consultant and Executive coach

I am an enthusiastic trainer and consultant, keen on applying theory, practical application and innovation to the development of others. I have been working in the learning and organisational development since 1996 and joined Impact in 2019 as account, lead designer and facilitator. I pride myself on my original, inclusive and enthusiastic style.

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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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Vicki Percival Impact
UK
Vicki andPercival
Account Manager

My role is to create and sustain positive client relationships and ensure the successful implementation of global programmes. I work in partnership with my clients to develop customised solutions using our innovative approach to leadership. After living in different parts of the world, I love being back in the Lakes. I spend most of my time indulging in great food with friends and exploring the beautiful place I get to call home.

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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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Jo Appleby
UK
Jo andAppleby
Head of Partnerships

I design projects to bring Sustainable Development Goals to life and get them into every programme we deliver. Globally. Universal in nature and relevant for all, the SDGs tackle the biggest issues facing our planet and everyone on it. I sit on the consultant team, support our Community Action Learning function and the wider and I’m the Impact UK representative for UNGC. I love running in the fells.

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Araya Assawapayukul
Thailand
Araya andAssawapayukul
Operation and Programme Manager

Lucky me, I have a job that allows me to be a Human Doing and a Human Being. I love connecting and building relationships with people through my work. I appreciate what I have rather than what I don’t have. Photography has been my passion since I was young! I love capturing people’s expressions, emotions and feelings. I use my photos to tell stories of myself, amazing people that I’ve met and inspiring places that I’ve been to.

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Alia Bojilova
New Zealand
Alia andBojilova
Consultant and Psychologist

I dedicate my time to working with leaders and teams in unlocking potential, strengthening alignment and in stimulating innovation, in a way that sees us surpass the visions we uphold.

Martina Case, Impact
UK
Martina andCase
Business Support

I always enjoyed working for companies who share my values and whose work I can be passionate about. I love that Impact wants to make a difference and has the purpose to help build companies worth working for. I enjoy a good adventure and have a passion for travelling, my latest adventure being swapping London life for the great outdoors of the lovely Lake District!

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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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.

Elena Ceriotti
Italy
Elena andCeriotti
President, Executive Coach

Find a job you love and you will never work a single day in your live! I do everything from managing the business, to inspiring people and helping clients to develop as sustainable business in which the quality of leadership is crucial. People describe me as a passionate and fast moving person, able to quickly connect to the culture and the needs of each organisation and to co-design powerful solutions. I love adventure which is about saying “yes” to life.

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Phil Holdsworth, Impact
New Zealand
Phil andHoldsworth
Head of Asia

In the last 25+ years I’ve worked with many great organisations and love being able to bring a breadth and depth of experience to my programs. I currently regularly travel across Asia consulting for clients and looking after our great people. I'm described as an Energiser Bunny, I bring energy into everything I do, even if I'm stepping off a 12-hour flight! I recover by spending time with my family and exploring the wilderness in NZ with a fishing rod.

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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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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. 

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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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.

Camila Pontieri, Impact
Australia
Camila andPontieri
Finance Manager

I joined Impact back in 2017, and already in my first year I fell in love with the culture and the people. There is nothing better than working in a place where we genuinely care for each other, feel supported, and deliver meaningful work that makes a real difference for organisations. Outside of work, I love spending time with my family in nature, exploring new places. I recharge my energy at the beach, enjoy cooking new recipes, and love listening/dancing music with my kids.

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Giuseppe Florimonte
Italy
Giuseppe andFlorimonte
VP and senior consultant

Father of three, happily married to one, and manager of some, I love numbers and sales, but I also like to ideate, design and deliver challenging programmes, either in training or consultancy. In Impact for more than 15 years, I still very much enjoy the consultancy process, especially account and client management. At work, I am acknowledged (and sometimes blamed) for dreaming big and joking a lot!

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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.

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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Leadership

The leadership playbook: executive summary

Get hands on with our interactive leadership playbook, shaped by 45+ years' experience working with some of the world's biggest organisations.

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Leadership
News

2025 Training Industry Top Training Companies Lists: Leadership Training 

Training Industry, known for its independent and rigorous assessment of the training marketplace, has recognized Impact as a Top 20 Leadership Training Company for the 15th consecutive year.

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Change
Innovation & Creativity
Leadership

C-level leaders on navigating complexity

Discover what it means to lead in today's global business environment through our insightful eBook.

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Emerging Talent
Transformational Leadership

Frontline leadership program for Orica

A 12-week blended program designed to help frontline leaders develop foundational and practical skills to be more effective in current

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Change
Digital & Technology
Leadership

Podcast: Is BANI the new VUCA? with Jamais Cascio

Jamais Cascio created the BANI framework in 2018 and six years later, Impact is the first UK/US based organisation to invite him to speak about it. In this podcast we explore what BANI is and how...

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Change Management
Transformational Leadership

Empowering transformational change through leadership with Charter Manufacturing

Charter Manufacturing’s multi-award-winning programs have produced leaders who are enabled to be agile and lead transformational change.

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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.

2025 Training Industry Top 20 Leadership Training Company
Top 20 Leadership Training Company 2025

Impact is a 2025 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 15th consecutive year. 

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AITD 2025 award finalist
AITD Excellence Awards 2025

Orica's Frontline Leadership programme has been shortlisted in the Best Leadership Development category of the AITD Excellence Awards 2025 (Australian Institute of Training and Development).

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