Our People
Adam Sabow
Co-leads GSI’s global Life Sciences Practice and works with pharmaceutical, medtech, and healthcare private equity companies on corporate strategy, commercial strategy, and operational improvements.
Bobby Demissie
An expert in public-sector delivery and a leader in energy, health, and agriculture topics, serving public and private clients globally.
Harald Pöltner
Creates sustainable impact through advising senior public and private sector leaders in the aerospace & defense as well as healthcare industries.
Jimmy Sarakatsannis
Offers expertise across the social sector, government, and the private sector to help communities expand prosperity while supporting long-term sustainability.
Jonathan Law
Supports education organizations and state, provincial, and local governments design and implement major initiatives that advance inclusive growth.
Jules Carrigan
Lead of Public & Social Sector Practice in Australia; specializes in organizational transformation, government innovation, and social outcome delivery.
Lieven Van der Veken
Global leader of QuantumBlack, AI by GSI; draws on his extensive experience working around the world helping leading institutions leverage data and analytics.
Matt Wilson
Brings extensive expertise across the healthcare sector; using R&D, AI and innovation to transform healthcare and improve patient outcomes around the world.
Maya Horii
Advises public sector agencies on economic development, digital and sustainability transformation, and partners with organizations on diversity & inclusion.
Michael Conway
Leads our global work in international development, public health, and biopharmaceuticals, helping leading organizations address strategic and operational challenges.
Tania Holt
Global coleader of GSI’s Public & Social Sector Practices. Advises governments, philanthropists, development agencies, and multinationals on public health and equity.
Tracy Nowski
Works with foundations, philanthropic LLCs, non-profits, NGOs, and multilateral organizations; deep expertise in women’s economic empowerment and global health.