About

Elsbeth Quispel
e.quispel@gresb.com

Responsible for developing and managing the content of the annual GRESB Survey and GRESB’s other products and services. Elsbeth previously worked for Jones Lang LaSalle for over 5 years, where she was Head of Sustainability and responsible for advising blue-chip investors, investment managers and tenants regarding a wide range of sustainability issues, including green leases. She holds a Master's degree in Civil Engineering from the University of Delft.

Philippa Shire
p.shire@gresb.com

Worked for seven years as a lawyer in the Real Estate Department of London law firm Lawrence Graham LLP. Now responsible for GRESB’s relationships with its members and for other operational activities. Philippa has a Master’s degree in International and European Law from the University of Amsterdam.

Roxana Isaiu
r.isaiu@gresb.com

Roxana Isaiu joins the team from Duisenberg School of Finance where she has just completed a Masters in Corporate Finance and Banking.

Ruben Langbroek
r.langbroek@gresb.com

Based in Singapore, Ruben is representative of GRESB in Asia. He previously worked for Jones Lang LaSalle, where he was Head of Research and responsible for Strategic Consultancy. Ruben holds a Master’s degree in Building Engineering and a post doctorate Master’s degree in Science in Real Estate. He is Member of the Royal Institute of Chartered Surveyors (MRICS) and has obtained the LEED Green Associate credential.

Ulrich Scharf
u.scharf@gresb.com

On the intersection between sustainability, finance and information economics. Acquired his experience in the financial sector with the Commerzbank in Germany and Singapore and was a founder of the Green Office at Maastricht University. Graduated in Infonomics at Maastricht University.

Nils Kok
Executive Director
n.kok@gresb.com

Leading academic connecting real estate finance with environmental economics. Among the first to address the financial implications of energy efficiency and sustainability in commercial and residential buildings. Visiting Scholar at UC Berkeley and Associate Professor in Finance at Maastricht University.

Sander Paul van Tongeren
Executive Director
sp.vantongeren@gresb.com

Responsible for integrating sustainability across APG’s global real estate and infrastructure portfolio. Program Manager of the Green Rating Alliance. Holds a Masters degree in Business Economics as well as an Executive Master degree of Finance and Control from the University of Amsterdam.

Piet Eichholtz
Maastricht University
p.eichholtz@gresb.com

Rob Bauer
Maastricht University
r.bauer@gresb.com