Our passion is helping communities and organizations solve their complex challenges. 


We weave together diverse backgrounds in sustainability, facilitation, research, systems thinking and public engagement. Our work across North America, Latin America, Japan and Europe allows us to call on this global network for perspective and wisdom.  

We are a collaboration laboratory - providing spaces for people to innovate, experiment and strengthen their practices for leading in the world.  


sophia horwitz // 

Sophia hosts processes that support generative conversations and co-creation to uncover innovative approaches for social impact. While completing her Masters in Strategic Leadership towards Sustainability she was introduced to the change-making methods and theories that she practices today.  She is a partner and co-founder of COLAB, where she has helped launch programs, projects and organizations such as Mainstreets, Art of Social Innovation, Participatory Budgeting, Placemaking Halifax and cross Canada Placemaking research and network development.

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gregory woolner // 

Gregory is a concerned citizen, life-long learner, and realistic idealist that is dedicated to tackling social and organizational challenges one step at a time through interdisciplinary collaboration, rigorous research, and complex systems approaches.  With an academic background in Sociology, and Adult Education, and as a partner of COLAB, he brings years of experience in process design, program evaluation, studying human systems, and project management.

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joanna brenchley // 

Joanna’s passions for collaborative process and participatory leadership were surfaced during her time as a key organizer with a local climate justice group. With a background in Environmental Science and Sustainability, Joanna applies long-term sustainability and strategic thinking to everyday life: building networks and supporting local action. She has been working and experimenting with collaborative leadership, organizational development and project management in her leadership roles with 100in1Day Halifax, Divest Dal and Youthful Cities.