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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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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.

Maggie Pearce, Impact International
UK
Maggie andPearce
Head of Design

I have a global role around developing and sharing our learning practice, which I combine with designing and delivering some of our more complex client solutions. I have developed and pioneered ‘Solution Mapping’ – Impact’s consultancy framework, and specialise in evaluation strategies, as well as designing leadership action based simulations. I'm Impact’s unofficial Chief Cartoonist and, wherever possible, I use cartoons to bring insights and concepts to life.

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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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Ilaria Capogrossi Guarna
Italy
Ilaria andCapogrossi andGuarna
Key Account Support

I had the chance to join Impact Italy in June 2022 Joining Impact has added value to my professional background giving me the opportunity to work with very special collegues in a world company.I support our team and I coordinate the Milan Office.

In my spare time I like to travel to discover new destinations and people. I love animals and sports, especially skiing.

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Aidan Keough
Australia
Aidan andKeough
Senior Consultant

I help people gain insights into themselves and their team so they can improve as individuals and work more effectively together. As a facilitator I create the right learning environment and work alongside participants providing a balance of challenge and support. I bring over 20 years of senior leadership experience. I love learning, the outdoors and am fascinated with horses. I live on a small farm with my wife and two teenage children, and a herd of horses.

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Gianna Ruffo
USA
Gianna andRuffo
Program, Manager

As a Program Manager at Impact, I get to utilize the communication and organizational skills gained from my 6 years of customer service experience and owning my own business. My favorite aspect of the role, is seeing a program be designed and developed over time, come together in the end. In my free time, you will find me cooking, hiking, painting, or playing with my dogs! 

Michelle Roberts, Impact International
UK
Michelle andRoberts
Head of HR

I love the variety of my role, working with global clients on complex projects and learning from inspiring Impact people, no two days are the same. I’m responsible for the quality of customer service, building excellent client relationships, providing commercial strategies with meticulous project scoping and planning, alongside first class solution delivery and evaluation. I love the outdoors; walking, running or camping with our two boys and crazy cocker spaniel. 

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Hisae Hashimoto, Impact International
Japan
Hisae andHashimoto(Sae)
Facilitator

I provide inspiring opportunities for leaders to explore possibilities in expanding sustainable business and organisational development. As a staff support manager I have been leading operations such as talent acquisitions. Supporting others and organisations to expand their full potential is my passion. I enjoy ensuring we have a unique workplace where we can maximise potential and strengths. I love climbing mountains, hot springs and good organic foods.

Tash Morales
New Zealand
Natasha andMorales
Consultant and Executive Coach

I have a real belief in people and a passion for what drives human excellence. I love working with people in the areas of growth & transformation. The work I do with Impact inspires and motivates me. I start my daily routine with yoga and meditation. I love being with my family and being immersed in Nature which is so accessible even in the city, now that I live in New Zealand.

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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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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Tim Raw, Impact
New Zealand
Tim andRaw
Global Lead Solutions & Practice

Over the previous 30 years, I’ve held Impact leadership roles in Asia, America and now globally. My focus is to partner with clients to solve their people development challenges. I lead global teams to deliver inspiring solutions that solve complex social, economic and environmental challenges of our clients. In work and play, I am adventurous, ambitious and deeply about people realising their potential.

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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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Marlies Hulshof, Program Manager
Australia
Marlies andHulshof
Program Manager

Every day is a new adventure at Impact. As a Program Manager, I enjoy meeting people from all walks of life in the professional sphere. With my background in marketing, sales, customer service and business administration, Impact has provided an opportunity for me to utilise my communication and organisational skills on meaningful programs. In my spare time, you’ll find me practicing yoga, surfing, travelling, and spending time with friends and 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!

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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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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Erica Partelli
Italy
Erica andPartelli
Senior Consultant and Head of Operations
As a consultant in Impact I like to bring fresh perspectives, energy and curiosity to the problem solving process. With a strong organisational psychology background and an drive for project management, I work with genuine passion for innovation and for the opportunities that the digital transformation is offering. My main passions include travelling, swimming and playing board games.
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Simon Brown
UK
Simon andBrown
Accountant

AKA Bloodaxe. I am an accountant at Impact. When I am not at work, I enjoy spending time with my family, cycling and heavy metal. Not all at the same time, though – that’d be dangerous.

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. 

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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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.

Stuart Kelly, PhD Researcher
UK
Stuart andKelly
Associate

I have a passion for helping people in organisations perform to their potential. I have spent the past 10 years co-creating solutions to develop high-performance cultures. I work in elite sports and use the transferability of the skills people need in those environments in a competitive business one. I completed my PhD researching Leadership & Well-being in blue-chip organisations and apply this to my practice.

 

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Sydney Johnson
USA
Sydney andJohnson
Program Manager

I am a Program Manager located in the heart of Texas. My favorite part of my role is interacting with so many different people daily while building and carrying out a variety of client-specific programs. Every day, I learn something new, and it excites me to continue growing in my position. When I am not working, you can find me dancing, rewatching Friday Night Lights, traveling, and spending time with my friends, family, and dogs! 

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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