Meet Our Team

Our Team for You

Meet the team

Gerhard Mulder – CEO

Gerhard Mulder’s career in climate finance has spanned both the public and private sector, having worked in consulting in Washington DC, environmental markets on Wall Street, and for the Dutch government (Netherlands Enterprise Agency) to implement the Kyoto Protocol. In 2005 he set up the climate finance desk at ABN AMRO Bank and positioned the bank as one of the first global banks in the carbon market. In 2010 he joined a subsidiary of Rabobank International to develop an electronic trading platform for environmental commodities such as carbon credits and renewable energy certificates. In 2014 he switched back to the public sector and joined a leading non-profit (IUCN) in the Netherlands. At IUCN he advised the Netherlands government on developing financial instruments to attract private sector climate finance. Gerhard completed his MBA at the University of Oxford in 2018 with distinction. He studied environmental economics and international affairs at Columbia University in New York, and Public Policy at the University of Amsterdam.

Stephanie Gnissios – COO

Stephanie Gnissios’ background is in mining and heavy industry, working on both the consulting and owner/operator side. Her experience spans international project planning & delivery, portfolio management, risk management, investment assessment, and impact measurement and management. Since 2018, she has been focused on helping companies incorporate social, environmental, and climate impact factors into strategic decision-making and risk management across global project and investment portfolios. She acts as a climate and impact advisor for startups with a focus on impact measurement and incorporation of green elements for funding and finance. Stephanie completed her Executive MBA at Oxford University in 2020 and the Oxford Impact Measurement Programme in 2019. She studied Mechanical Engineering at the University of British Columbia in Canada and is a licensed Professional Engineer and certified Professional Project Manager.

Nathalie O'Sullivan

Nathalie brings deep expertise from the financial sector as a compliance expert with wide ranging experience in managing complex projects at global investment banks across multiple jurisdictions. Previously with CitiBank and Morgan Stanley, her public and private sector intelligence and analysis experience includes terrorist financing and research in financial flows and threat analysis. Nathalie previously founded ConservationK, a partnership-focused platform working to put an end to illegal wildlife trafficking through data intelligence and training. Nathalie holds an Executive MBA from the University of Cambridge, majoring in ESG including climate risk.

Pekka Piirainen

Pekka is a climate risk and investment professional with over seven years of experience working across capital markets, climate data, client advisory, and international climate negotiations and policy. Pekka started out in selling and developing passive investment strategies that incorporated the full spectrum of Scope 1-3 emissions data to eventually being responsible for all client advisory and business development. He led the development of the first TCFD-aligned scenario analysis toolkit, devised a Scope 1-3 emissions attribution model for equity and fixed income portfolios, and advised on using avoided emissions for security selection purposes for a flagship equity strategy.
Pekka has advised asset managers and service communicating on capabilities on managing and capitalizing on climate risks and opportunities. Pekka also participated in the COP21 negotiations round in Paris and preceding SB42 negotiations in Bonn as an international youth observer. Pekka holds a BA in History from UCL (distinction) and a Certificate in Sustainable Investment and Finance (CSIF).

Willemien van der Wielen

Willemien focuses on the application of climate data and climate modelling to assess physical and transition risks to various sectors. She combines her work with studying for a Masters degree in Environmental Sciences with a focus on environmental change and ecosystems at Utrecht University. Prior to joining CRS, she worked for a non-profit organization developing content for the Dutch knowledge portal for climate adaptation, climate data communication through (story)maps and creating a climate atlas.

Catherine Perry

Since joining CRS as an Associate, Catherine has been working with mining clients to embed climate into their governance, strategy, risk management, and metrics and targets. Prior to joining CRS, Catherine was a Project Geologist and Project Geophysicist in the Mining and Oil & Gas industries, respectively, and her career has spanned several domains, including exploration and production, HSE and risk management, and regulatory compliance. At ESG Solutions, her work as a micro seismic Geophysicist ensured regulatory compliance and site safety through active real-time evaluation of borehole integrity and hydraulic fracturing activities, monitoring shallow steam chamber development, and tracking water inflow in mines. As a Project Geophysicist at Fugro, her work focused on natural hazards that could affect employee safety or subsea asset integrity. With her geoscience background, she has an active interest in geological storage of CO2 and in critical metals and minerals essential for a low carbon future. Catherine has a Masters in Geology with International Study from University of Birmingham, an MBA from University of Oxford specialising in finance, strategy and sustainability, and is a certified Project Management Professional.

Dadiyorto Wendi

With 10+ years’ experience in physical climate change hazard impact assessment, Dadiyorto Wendi is a climate hazards scientist whose background spans across flood hydrology, water resources management, satellite imagery, and data science.  He has worked across projects including water stress assessment of the Nile River in Africa, urban storm drainage system and forest ecohydrology in Singapore, regional flood exposure modelling in Singapore, Indonesia, Malaysia, Vietnam, France, and Germany, and also a stint of geomorphological hazard research in Central Asia and Chile.
His work collaborators and partners include a diverse range of stakeholders such as government agencies, engineering consultants, academic institutions, and reinsurance companies. His academic portfolio includes a PhD in hydrology with research on flood hazard data mining, a MSc in hydro-informatics and water management, and two postdoctoral research including the Helmholtz ‘Digital Earth’ project where he collaborated with interdisciplinary climate and data scientists across different Helmholtz centres in Germany to assimilate big data, hind- and forecast models, and analysis tools for a German wide climate hazards adaptation. Dadiyorto is also a topic editor for Frontier of Water, and an active journal reviewer for several scientific journals for water related climate hazards.

Pia de Bruijn

Pia’s career goes back a long time mainly in application management. As office manager she ensures that the team is optimally supported, both in Utrecht (NL) and Oxford (UK). She assists in de development and implementation of firm policies and procedures . Manages calendars , internal schedules, internal documentation processes. Supporting HR, Finance and IT.

Jieling Liu

Jieling Liu’s focus is on climate change policy and governance. At CRS, Jieling works with a collaborative and energized team to advise clients on a range of climate risk topics, including Paris alignment, climate risk data and analysis, scenario analysis, and emerging regulatory frameworks. Prior to joining CRS, Jieling served as Sustainability Researcher at the Center of Engineering and Development (CEiiA) in Portugal, where she conducted research on voluntary carbon markets and supported a blockchain-based carbon-neutral mobility pilot. Her PhD is in Climate Change and Sustainable Development Policies from the University of Lisbon, with research on urban green spaces as common-pool resources and nature-based climate solutions. Jieling’s academic background prior to her PhD is in political sciences and journalism. She also served as a research assistant in the science program ‘Urban Health and Wellbeing: a Systems Approach’ of the Chinese Academy of Sciences, in which she collaborated extensively with government officials, urban planners, and scientists.

Naveen is a researcher, analyst and communicator, and has developed thought leadership, policy blueprints and creative workshops for clients such as the European Commission, major European banks and various international ministries. Naveen’s interests lie in the areas of applied complexity science, anticipatory design and of course climate action for a sustainable future. Naveen has a B.Eng. in Chemical Engineering with a minor in Entrepreneurship from Nanyang Technological University in Singapore and an MSc in Engineering and Policy analysis from Delft University of Technology in the Netherlands.

Rahul Verma

Rahul has seen the rapidly evolving technology landscape from a variety of perspectives over the last decade, bringing together both technical and non technical aspects to create value with a holistic view to meeting clients needs. He brings a breadth of understanding on emerging technologies and how to craft them into meaningful and value-adding solutions.