Five Oaks Consulting:
FOR NGOs WHO LOOK CHANGE RIGHT IN THE EYE
Tosca Bruno-van Vijfeijken
Principal Consultant
Five Oaks Consulting
Get my co-authored book
Between Power and Irrelevance: The Future of Transnational NGOs
Work smarter, more effectively, and with more impact
Leaders of International NGOs partner with Five Oaks Consulting to help them achieve maximum effectiveness. Our expertise is bringing out the best in mid- to large-size, global INGOs through skillful change management, cutting edge leadership development and organizational effectiveness related practices.

Get the experience and knowledge you need to run your high impact organizations
Tosca Bruno-van Vijfeijken has dedicated her three-decade career to international development and civil society issues. For nearly 16 years she managed, and eventually led the Transnational NGO Initiative (TNGO Initiative) at the Maxwell School of Citizenship and Public Affairs at Syracuse University, USA, where her focus was on the governance, leadership and effectiveness of international civil society organizations.
Tosca has done extensive work with mid-sized to large INGOs helping to direct customized leadership development, including executive coaching. Her work extends to change leadership and management, including organizational level evaluations.
Get the resources you need to better run your organization
Virtual Team Leadership Essentials
Dates for next FULL, fee-based course:
September 24 – November 5, 2022
Put your name on our waiting list, to be alerted about future course openings
Get my co-authored book
Between Power and Irrelevance:
The Future of Transnational NGOs
This book helps identify the problems and that will helps readers evaluate and formulate strategies for adapting transnational NGOs for the future
Put your name on our waiting list to be alerted about upcoming course openings!
Subscribe to our podcast
NGO Soul + Strategy
Apodcast for leaders of NGOs and other philanthropic organizations who are not satisfied with the status quo, are ready to look change right in the eye and who see themselves as leader-as-learner. Available wherever you get your podcasts.
Clients we have worked with






What others have to say about us

Abby Maxman
President & CEO, Oxfam America
Tosca is a professional of deep integrity who consistently brings her breadth and depth of experience, thoughtfulness and excellent listening skills to her interactions, clients and projects.

Tirana Hassan
Director, Crisis Response, Amnesty International
Tosca’s meticulous preparation as well as ability to design training that is rooted in academic literature while balanced with the pragmatism of a practitioner resulted in a unique and enriching learning experience.

Ahmed Adel Nour
Former CEO, Middle-East and North-Africa
Her international interaction has given her a macro-perspective, and her managerial experience has given her a micro-view of the internal nature of organizations.

Seetha Srinivasan
Director Emerita, University Press of Mississippi
While at the ProLiteracy board, I was in awe of Tosca’s many abilities in both strategic and operational spheres, and of her ability to speak directly about strengths and weaknesses of the organization.