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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.

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!

Courtney Henderson
UK
Courtney andHenderson
Software Developer

I’m Impact’s resident back-end developer; working to build robust, efficient, and reliable systems to underpin our experiential learning platforms. I take pride in collaborating with like-minded individuals who share common interests and values, collectively unlocking each other's full potential. As a Lake District native, I feel a strong connection to the area in which Impact is headquartered and have seen first-hand the local and global effect that Impact achieves.

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Mark Sanders, Impact International
UK
Mark andSanders
Head of Operations

I manage equipment, projects and vehicles at our HQ. I have a certificate of competence in the inspection of personal protective equipment for adventure activities, level 3 qualification in transport managers professional competence and IOSH managing safely certificate. My sense of humour helps me to cope with a job which is at best dull. Playing guitar with the infamous Impact band "you get what you pay for" is simultaneously the moment I'm most and least proud of.

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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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.

Akira Matsumoto (Mikey), Impact International
Japan
Akira andMatsumoto(Mikey)
Assistant Manager, Facilitator

With nearly 18 years in the retail industry, I held roles such as sales, store manager, trainer, and area manager. These experiences taught me that when people grow, organizations grow. Supporting others made me reflect on my own growth and whether I still had something to offer. To challenge myself, I moved into a new industry. Now, I work to create training experiences that resonate emotionally and leave a lasting impression—while continuing to grow with my clients. 

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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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?

Detlef Eigenbrodt
Italy
Detlef andEigenbrodt
Senior Consultant and Facilitator

I love to lead development. Development of reflection, knowledge and conviction. Personal and individual. Development of values, attitudes, performance and decisions. For a better understanding of People and for a greater invest into the worlds future.

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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!

Yuki Okamoto, Impact International
Japan
Yuki andOkamoto(Yuki)
Master Coordinator

Since 2006 I have coordinated programme delivery. This involves meeting facilitators and consultants to design great modules, using creativity to ensure participants have profound learning experiences that add value to their organisation. I manage project set up and use technical skills such as abseil belaying. I have a teaching licence to teach PE. Now I enjoy working using my body, so I love to do exercise and jogging, swimming, gymnastics, and most outdoor things!

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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Dean Mounsey Impact
Australia
Dean andMounsey
Country Manager

I'm surrounded by gifted people who do anything for each other - I mean anything. I find this very humbling. Two decades at Impact have taught me the value of compassion, loyalty, striving for excellence in everything you do and always getting back up when you fall down. This has helped me gently hold that most elusive of holy grails, true meaning at work. I love and am gratefully centred by my wonderful family. I seek adventure wherever I can and love being high up in mountains.

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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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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.

Sarah Brammeier
UK
Sarah andBrammeier
Senior Consultant

A global leadership facilitator/coach, I partner with you to meet challenges in uncertain, complex environments. I focus on what works in order to create programmes where learning is used right away. I am a bad surfer/golfer, lapsed runner and improving tennis player.

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Haruka Maruyama (Maruko)
Japan
Haruka andMaruyama(Maruko)
Assistant Manager, Planner

Working as a planner at Creative and Marketing Department since 2019. Before Impact, my career was mainly on the position of sales and marketing at the bank and advertising agency. My focus is on the capacity building for both individual and team. Virtual team building is one of the fatal themes because I am working as a full remote member. I love traveling around the world with my backpack and enjoying beautiful local delicacies!

Trudy Bridger, Impact
Australia
Trudy andBridger
Consultant

My role is to build strong, trusted partnerships with clients and help bring our shared purpose to life: liberating human potential and creating organisations that are truly worth working for. I’ve worked across a wide range of roles at Impact, giving me broad experience and a unique perspective on the business. Outside of work, you’ll usually find me out in nature, reading, cooking, or—more likely—chasing after my energetic toddler.

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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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Fabio Gabbiani
Italy
Fabio andGabbiani and
Senior Consultant and Key Account Leader

With over 26 years as L&D and Internal Communication manager in large multinational companies, I’ve developed deep knowledge in consulting roles, building trusting relationships with all levels of an organization, implementing complex projects. I love my job, the countryside, animals and sports.

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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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Yui Tanaka(Yucho), Impact International
Japan
Yui andTanaka(Yucho)
Coordinator

My food and beverage career began with a bartending job as a student. Working in large restaurants taught me that guest service depends on recruitment and training. After roles as restaurant manager, supervisor, and recruitment and training lead, I focused on employer branding and training programs. To deepen my expertise, I joined Impact Japan, a global leader in experiential learning. I am now developing as an organizational development partner in CSD. I enjoy fishing, hiking, and rugby.

Simon Wagstaff
UK
Simon andWagstaff
Senior Consultant, UK

I joined in 1982 when the company was two years and totalled four people. I have had the great privilege of what seems like two parallel careers - helping to build and develop our business and working with clients to help them do the same with theirs. I love the variety of my role, that at Impact personal talent is more important than hierarchy, and that we have never waivered from our vision to make a positive difference in the world, through leadership development.

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Doug Greenhough, Zinco
UK
Doug andGreenhough
Head of Learning Tech

I love both learning and technology, so leading Impact’s learning tech R&D is a fantastic gig. Technology can sometimes feel in conflict with the humanity we seek to serve, but thoughtful application of tech immerses us in challenging experiences, brings us closer together and helps us to learn the most important, most human skills. My approach to learning tech (and life, for that matter) echoes Impact’s practice: experiential and human-centred.

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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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