Our Responsibility

We come together to find solutions for today’s challenges in the fashion value chain. Together we exchange experiences and solutions to build a new fashion system safeguarding our planet, the workers and communities impacted by the fashion value chain.

Working with a global community of industry experts, impact entrepreneurs and change leaders, we support organizations who want to take steps towards a new fashion system.

Good Brand Guru engages with leaders stemming from all levels of the fashion supply chain, and from around the world (Europe, Asia, Africa, North and South America). Through openness and collaboration we can accelerate the transition towards a new fashion system, that is better for people and planet.

Meet Our Team

Good Brand Guru was created by, and for, fashion professionals and sustainability experts seeking to learn, exchange thoughts  and build valuable connections with other change leaders in the industry.

Martine Nieuwenhuis


Martine has more than 20 years of experience in project management in the international creative industry, fashion marketing and e-commerce. She ran her own digital marketing company for ten years before deciding to focus entirely on sustainable fashion.
Within Good Brand Guru, Martine researches and keeps track of innovative consumer brands founded on the purpose of doing good.

Combining a strategic, creative and practical approach, Martine manages all marketing and communication towards members and partners, and is responsible for project management and administration.

Martine is based in Sao Paulo, Brazil

Bryony Jansen – van Tuyll


Bryony has a Masters in Industrial Design Engineering. After 10 years in management consulting focused on growth and innovation, she decided to refocus her career and use her consulting and design thinking skills towards sustainability challenges. She is passionate about the circular economy, doughnut economics and, as a BLeader, helps companies gain BCorp certification.
Within Good Brand Guru, Bryony provides strategic perspectives, curating and facilitating activities and events. She also leads the development of partnerships with non-governmental organisations.

Bryony divides her time between Milan, Italy and the mountains in French-speaking Switzerland

Rosa Spinney

Research Assistant

Currently undertaking her master’s degree at the University of Bath in International Development, Social Justice and Sustainability. Rosa has an interest in fashion global supply chains, social and environmental justice, and circular economy. 
With Good Brand Guru, Rosa is assisting the monthly blog post on different monthly themes and helping to conduct research around different fashion sustainability issues.

George Alshoufi

UX & Product Manager

George is an experienced, full-stack developer that builds it right the first time, from a new concept to launch. While having an MSc in Innovation and Entrepreneurship from HEC Paris, and a PG Cert in Computer Science from the University of Essex, He continues learning and keeping up with product and industry-specific innovation & best practices.

Meet Our Advisory Board

Our passionate advisory board guides us on our journey to increase our reach among decision makers in the fashion retail industry and to grow our impact by engaging trailblazers to come and share their insights and experiences.

Coty Jeronimus

 Co-founding Member of Good Brand Guru and Senior Advisor on Sustainable Sourcing and Textiles

A sustainable textile consultant with more than 25 years of experience in sourcing buying, product management and sustainable supply chain. As a consultant, under her company Tasklab, she supports businesses and NGOs in addressing global sustainability challenges so they can make a difference and help to reduce natural resource use and environmental footprint. She also founded Nomadnoos, an impact company selling luxurious yarns with a positive social and environmental impact for the hand-knitting community.

Femke Zijstra

Senior Advisor Business Development.

Femke is a motivated Sustainable Business Leader in the international (textile) industry. She initiates, advises and wants to work towards a system with sustainable products for everyone. Femke has always been passionate about green tech, sustainable innovation and developing textiles. As a business leader, manager or peer I translate vision and strategy to execution and result.
‘Creating sustainable value and impact cannot be done in isolation. So, let us work together to transform the textile supply chain to be leaner and cleaner.’

Nicole Eichner

Senior advisor on Leadership and Organizational Structure

Nicole is passionate about supporting individuals, teams and organisations in their development. She has been working as global leadership development consultant, executive coach and facilitator for 15+ years and lived in different countries. 
“I am very impressed by Martine’s and Bryony’s passion and their commitment to bring the organization to the next level with ongoing reflection and learning. Also, working with them is very inspirational and enjoyable.”

Tatsiana Shanina

Senior Luxury Brands Buyer

Tatsiana has dedicated her entire career to fashion, working for some of the most prestigious luxury retail companies in New York, Toronto and Geneva. I believe that today, more than ever, we have an opportunity to build a cleaner, more sustainable and more ethical industry. As a total optimist, I believe in people’s will to do better. With access to modern technology, science and innovation, I know that solutions to fight pollution and overconsumption are possible. So let us all collaborate, share information and inspire each other to achieve a brighter, more sustainable future in the fashion industry!

Partners & Sponsors

Speakers & Contributors

After four years of hosting more than 50 knowledge sharing and networking events, connecting sustainability and fashion professionals with each other, we have decided to stop the activities we were doing under Good Brand Guru from 2023 onwards.

With equal passion and perseverance, we are continuing to strive for a better textile and clothing industry.

We are doing this through different projects, including helping companies to become BCorp and working with Fibershed at both a Dutch and European level. The Fibershed movement seeks to develop regional fiber systems that build soil and protect the health of our biosphere. Working with a soil-to-soil vision, we are rebuilding local, collaborative supply networks that are inherently fair, circular and regenerative.

If you would like to learn how you can join us in this new chapter, please get in touch through: info@fibershed.nl

We look forward to staying in touch,

Warm regards,

Bryony & Martine