Our Team

Meryn Zumbo Willetts

Meryn Zumbo Willetts is the CEO and Founder of Umbrella and Boardiverse, working with executive teams to drive strategy, reimagine operating models, and unlock growth. Her work focuses on turning complexity into clarity and translating ambition into execution.

Founder & CEO
Reimaging how companies grow

Tumi Sineke

Tumi Sineke works across inclusive and tech recruitment and talent strategy, helping organisations build high-performing, diverse teams. She strengthens talent pipelines, improves hiring outcomes, and coaches leaders and teams through workshops that turn inclusion into practical, measurable results.

Senior Consultant 
Inclusion drives performance
Senior Consultant
More tech, more touch

Elisabeth Winsjansen

Elisabeth Winsjansen has over 10 years of experience in tech as a consultant, project manager, and leader, with a background from NHH. She combines expertise in digital product development with a deep understanding of human behaviour to help organisations turn people, culture, and data into meaningful, measurable impact.

Umbrella partners with forward-thinking leaders to drive meaningful business growth through inclusive leadership, strategic clarity, and diverse talent. We design and deliver tailored workshops, coaching, and recruitment solutions that align people, strategy, and inclusion, unlocking innovation and building teams ready for today’s complex challenges.

Our Values

Courageous Curiosity

We ask the questions others avoid, seeking fresh perspectives that drive real change.

Boldly Experimental

We move from ideas to action fast, testing, iterating, and learning without fear of failure, or sometimes just doing it afraid.

Authentic Care

We show up with empathy and integrity, building trust through genuine connection.

Morally Ambitious

We aim higher than profit, shaping decisions that create lasting positive impact.