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3 Bi-weekly 2 hour course modules

Create powerful IMPACT and boost business growth.

By joining our Masterclass you will:

  • Create an IMPACT roadmap & business case for the best outcomes.

  • Be inspired by the best impact practices from around the world.

  • Understand the key secrets behind better outcomes.

  • Apply thought-leading tools based on award-winning research that turn the complexity of sustainability into highly effective initiatives.

  • Find more clarity around your purpose.

  • Develop effective impact metrics and comms plan.

  • Obtain an IMPACT Leader Masterclass certificate.

Delivered by

Melanie van de Velde, PhD, MBA, MSc,
Author, Founder Big Tree Global

An excellent Masterclass that was way more insightful than what you get elsewhere.


It was fascinating to hear the insights from other participants from all over the world."

Jamie Davidson,
Director Johnston Carmichael,

I came home bouncing after the sessions. The UN SDGs used to feel overwhelming. Now they feel comfortable and I can't wait to tackle them."
Merlijn Mazairac,
Founder The Rookie Minds,
The Netherlands
Melanie's IMPACT Wheel is a great tool we will be using for all projects in the future. I also loved the case studies from around the world to trigger further ideas of what we can do here."
Daniela Jimenez Chavez,
Head of Sustainability Menorca Inversiones,


Research shows that purpose driven companies grow three times faster than their peers, experience higher customer loyalty & referral rates, increased productivity, brand value, resilience and reduced risks.

But many companies adopt impact strategies that are not very effective. This tends to:

  • Result in low impact success, or in worse case scenarios end up in doing more harm than good.

  • Not lead to better customer loyalty & referral rates and other business benefits.

  • In some cases backfire with negative exposure.

By joining our IMPACT Masterclass based on award-winning research you will create an IMPACT Roadmap for the best outcomes.

Most sustainability frameworks are very detailed. Whilst this serves a purpose it often makes it hard to see the big picture and the most effective solutions. Our tools, insights and best practice examples make it easy to develop innovative and powerful initiatives to:

  • Create structural outcomes on the UN SDGs (our key global issues) as part of your business model.

  • Boost long term business growth authentically.

  • Increase productivity, resilience and brand value.

Impact Wheel_ TYPE.jpeg


  • Not all impact initiatives lead to desired results. In this course you will be inspired by key insights that underpin better outcomes, and exercises that guide you towards taking the best next steps on your impact journey. 

  • Our IMPACT Wheel © and five step IMPACT Success Model © turn the complexity of sustainability into simple steps to build an effective impact strategy fitting with your unique context.

  • We won't dive into an all-encompassing framework where you can easily lose sight of the big picture. Participants say they love the course particularly for our thought-leading tools that tease out powerful impact practices. 

  • You won’t leave thinking ‘and now what?’ You will leave the course with an effective roadmap for the best outcomes. The best outcomes in terms of impact as well as driving business growth authentically.

The exercises forced us to make our vision more concrete and to turn this step by step into an effective plan."

Jules Prick,
Co-Founder Koos Service Design,
The Netherlands

What I like the most is the IMPACT Wheel. Because with the IMPACT Wheel it all comes together. 

It is a really good structured way to see what you can do in your business."

Gert Eilander,
CEO Multiweld & Impact Chair Entrepreneurship Organisation
Bee Lin Chow,
Head of Asia Energy Analytics at ICIS RELX,

Presented by...

Melanie van de Velde,

PhD, MBA, MSc,

Author and Founder

Big Tree Global,

The Netherlands / UK

The Masterclass is delivered by Dr Melanie van de Velde. Her aim to inspire business leaders in creating the best sustainability outcomes. Her thought-leading framework is based on her research, awarded the Adam Smith Prize for PhD Excellence, nominated by the Social Innovation Research Director at Cambridge University.

Prior to her research Melanie managed Asia Pacific markets at a multi-billion dollar tech company. She worked in senior management at IT start-ups. And she ran an impact business in a Nairobi slum. 


With Big Tree Global she provides business leaders and MBA students from around the world with key insights and tools to create powerful impact on our key global issues.


Guest contributors...

Sandra Ballij.png

Sandra Ballij
CEO Ctalents,
The Netherlands

William Richardson.jpeg

Will Richardson
CEO Green Element, 
Compare Your Footprint,



Mark Logan.jpeg

Mark Logan
Start-up & scale-up advisor, Investor, Professor, former COO Skyscanner,



Brieuc Saffré
CEO Circulab,

Who is it for?

  • CEOS, Senior management, (impact) entrepreneurs, public sector executives or sustainability leaders who are ambitious about building more powerful impact practices into their strategy. 

  • Management consultants who would like to incorporate our framework as part of their toolkit to support their clients with highly effective impact strategies. Throughout the course they work with a client or case study.

Participants both at the start of their impact journey as well as those that are leaders in their sector say they highly value the course for helping them shape their thoughts into a clear and effective vision and roadmap for better outcomes.

Finally, a tool to help identify effective impact initiatives. The imperative to make a positive impact and deliver profits may seem paradoxical, but it is possible.  Melanie has solved this with her simple, easy-to-adopt methodology to help businesses create powerful social and environmental impact strategies.

Mark Fallows,
Founder Fabrica Collective & The Impossible Network,
The Masterclass was delivered exceptionally. The clear vision and plan we are now taking forward, I couldn't have done it without the course.
I highly recommend anyone to join."
Rebecca Thomson,
Group Sustainability Manager Kepak Group,

3 Course Modules - 2 hours each session

Dates course modules

17 May - Module I 

31 May - Module II

14 June - Module III

Timing of each session

9am BST/ 10am CET/ 2:30pm IST/ 5pm SGT

And including (optional)

7 June - Peer coaching session (30 mins)

Jul/ Aug - Individual coaching (30 mins)

Fees (Incl. 20% early bird discount) *

2 Monthly instalments of: £365/ €385/ $405

Or 4 monthly instalments of:  £185/ €195/ $205

Deposit payment of 1st instalment is due at registration to secure your place. The remaining second instalment is due in a subsequent monthly payment.


FEES include a 20% early bird discount - this rate is valid for registrations before 31 March 23.

For countries with other currencies adjusted pricing applies reflecting local living costs, please contact us at

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Money back guarantee



Our graduates highly value our course so hopefully you will too. But if you feel after the first module it's not right for you we will repay you in full. Just email us within 24 hours following the first session.

For any questions about the Masterclass or for more info about in-house workshops please email us.

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