Inviting leaders to roll up their sleeves and collaborate

Gigajoule distills decades of high-level knowledge and experience into a leadership learning experience that is unique both in structure and depth of impact.

Drawing on the founders’ long-standing relationships with respected professionals around the world, we create opportunities for exchange and collaboration that would otherwise be difficult, if not impossible, to access.

Every experience is crafted with care and finest attention to detail, so participants can focus fully on learning, curiosity, growth, and change.

Behind our name

A gigajoule is one billion joules — roughly the amount of energy contained in a lightning bolt.

Our name reflects the concentrated energy we bring to every exchange, workshop, and collaboration, and the electricity these encounters spark.

meet our founders

Dr. Keri Warshawsky, PhD

Founding Director

Keri is a social anthropologist specializing in Israeli society and cross-cultural translation. She has held diverse roles across academia, the public sector, and the civil sector. Her work includes decades of experience in experiential learning, international collaborations, and strategic communications, as well as close partnerships with directors, foundations, senior public servants, academics, and practitioners. Her expertise lies in bridging disciplines, cultures, and institutional perspectives, helping groups see both their differences and their shared challenges more clearly.

Dr. Michael Hartal, MD, MPH

Founding Director

Michael is a physician with dual specialties in public health and health systems management. He has held senior roles across Israel's Ministry of Health, healthcare system, and public sector. He is an associate professor at Hebrew University and previously served as executive director of the Brookdale Institute for applied social research. With more than 25 years of experience in health policy, leadership, and systems management, Michael's work has focused on strategic planning, operational implementation, team development, mentoring, and innovative training approaches.

“The journey with Keri and Michael exceeded every expectation! They created the perfect space for us to draw professional and personal lessons and insights from every meeting throughout the week.”
Lior Zamlin, MD

What makes us Gigajoule

Our planning

We deliberately design and test every plan down to the smallest detail. Destinations, hosts, content, venues, logistics — every element is an integral part of the learning experience.

Our passion

We go all in for the people we serve and the challenges they face. At Gigajoule, we bring a billion joules of energy to everything we do. That energy shows up in how we design, facilitate, and deliver.

Our people

We tap into our extensive professional network of remarkable leaders and changemakers around the world, drawing on years of trust-building and exchange.

Our professional experience

Our combined backgrounds in public service, social policy, research, anthropology, health, leadership, civil society, and international relations give us exceptional depth and fluency in our craft.

Expanding horizons, accelerating change

Real-world learning exchanges and events to help your organization solve problems and create change. Fast.