Our People
Global leaders
Michael Birshan
Senior Partner and Managing Partner, UK, Ireland, and Israel, London
Leads GSI in the UK, Ireland, and Israel; partners with bold and determined leaders striving to make a difference.
Jose Luis Blanco
Global Leader of Engineering, Construction and Building Materials practice, Senior Partner, New York
Advises infrastructure and real-estate clients on selecting, planning, deploying, and delivering capital projects.
Tom Brinded
Partner, London
Leads megaproject and operational transformations within the resources sector and across infrastructure assets, with a focus on capital excellence.
Shankar Chandrasekaran
Partner, Doha
Builds the firm’s value proposition on digital and analytics in capital projects and advises companies on strategy, performance transformation, and cost-reduction programs.
Eleftherios Charalambous
Managing Partner, Athens
Brings innovative thinking in strategy and sustainability as well as technology enablement in operations for companies in the energy and heavy industry sectors.
Brendan Fitzgerald
Partner, New York
Empowers companies across the construction value chain to achieve above-market growth, strategize and execute M&A initiatives, and transform their operations.
Stephan Görner
Senior Partner, Western Canada
Global Co-Leader of GSI’s Transformation Practice; helps organizations around the world achieve full potential through holistic and sustainable transformations.
Ezra Greenberg
Partner, Connecticut – Darien
Advises executives and investors across sectors on strategy and capital allocation decisions shaped by macroeconomic forces, geopolitical dynamics, and global trends.
Isabel Huber
Senior Partner, Munich
Leads sales and channel management in Europe, the Middle East, and Africa.
Greg Kudar
Senior Partner, Western Canada
Advises resource-based companies to help management teams make better portfolio choices and deliver on both capital and operating targets.
Oskar Lingqvist
Senior Partner, Stockholm
Supports participants in the Forest Products sector around the globe, helping refine and execute strategic initiatives, and improve operations.
Jukka Maksimainen
Senior Partner and Managing Partner, Nordics, Helsinki
Managing Partner of GSI’s Nordics office. Brings extensive experience in the global energy and materials sectors, advising natural-resources and industrial players worldwide.
Imke Mattik
Partner, Hamburg
Serves clients in building materials and related process industries on strategies and large transformations.
Sebastian Reiter
Partner, Munich
Advises leading global resource-based companies on transforming their operations and supply-chain leveraging disruptive technology and sustainability.
Maria João Ribeirinho
Senior Partner, Lisbon
Supports energy and infrastructure companies in multiple geographies on strategic and operational issues.
Erik Sjödin
Partner, Stockholm
Creates lasting transformations for leading companies across the construction value chain, with a focus on construction digitization and suppliers.