Data Quality & Validation Internship

We are looking for driven and enthusiastic interns to join our team. The 6-month internship offers a unique chance to work in a fast-growing, mission-driven organization that paves the way for a more sustainable real asset sector, with many opportunities for personal development and career advancement.

This hands-on internship program provides the framework for a student to apply what has been learned from prior experiences and the classroom to make a value-added impact at GRESB.  Through this internship, interns will gain real-world work experience and demonstrable accomplishments while acquiring a deep understanding of various sustainability-related standards and frameworks. The main responsibility of this internship consists in validation of sustainability-related data and reporting as well as supporting our team with data analysis, extraction, and outreach.

The ideal candidate will be available to work 40 hours per week for the duration of the internship. GRESB will provide all required training and software resources.

Key Responsibilities 

• Learn how to perform in-depth technical reviews of environmental, social, and governance (ESG) performance documents for analysis and benchmarking 
• Support the Data Quality & Validation team in verifying policies, reports, and data across multiple ESG categories against international sustainability standards, including developing familiarity with other sustainability frameworks (LEED, WELL, BREEAM, GRI, ISO, etc.).
• Data manipulation and basic statistical interpretation
• Learn how to work with confidential client information and supporting the team with client outreach
• Manage time across various tasks to meet deadlines 
• Work collaboratively with other interns and employees

The candidates will ideally be able to perform the internship between April 15th and September 30th 2026, in Amsterdam.

Only applicants who are based in the Netherlands and already eligible to intern in the Netherlands will be considered. GRESB unfortunately cannot support visa applications for this role. 

Requirements

• A graduate student interested in a career in sustainability, studying sustainable business practices, environmental studies/sciences/engineering, chemical/biological sciences, policy writing, or a related field 
• Self-motivated and able to complete tasks efficiently and on time while working remotely 
• An effective communicator- able to work with the GRESB team to evaluate project data against broad ESG benchmarks, scorecards, and best practices 
• Competent in analyzing operational and environmental data for compliance, indicators, and trends 
• Able to perform detail-oriented reviews of lengthy documents, providing clear, concise notes when needed 
• Proficient with Google and Microsoft Office Suite 
• Strong at problem-solving, decision-making, time management, organization, and written and verbal communication skills 
• Team-focused, demonstrates initiative, and has a positive, helpful attitude 
• A quick learner, adaptive, and eager to tackle new situations 
• Has a passion for sustainability and the underlying engineering, business, and policy impacts, roles, criteria, and technology 
• Willing to jump in on any task that helps the team meet its objectives  
• Must possess the right to intern in the EU (non-EU applicants must already have a Dutch working permit or student visa) 

Benefits

• Monthly competitive allowance of EUR 1200,-;
• 6 paid days off;
• Free, healthy lunch at the GRESB office;
• Free public transport to and from the GRESB office (in Amsterdam) within the Netherlands;
• Involvement in a fast-growing international organization that is globally recognized as the leading sustainability benchmark for real assets;
• Opportunity to work with a highly talented and committed team in a supportive environment with loads of camaraderie\

GRESB is an equitable, diverse, and inclusive workplace, one at which all workers — regardless of their gender, race, ethnicity, national origin, age, sexual orientation, identity, education, or disability — feel valued and respected. We are committed to a non-discriminatory approach to hiring and providing equal opportunity for employment and advancement in all of our teams and programs. We respect and value diverse life experiences and heritages and work to ensure that all voices are valued and heard.

ABOUT GRESB

GRESB is a mission-driven and industry-led organization that provides actionable and transparent environmental, social, and governance (ESG) data, benchmarks, and analytics for financial markets. Through its annual assessments and data platform, GRESB collects, validates, scores, and benchmarks ESG data for real estate and infrastructure assets worldwide, enabling investors and managers to measure performance, manage risk, and identify opportunities for improvement.

GRESB assessments and benchmarks provide the real assets investment community with standardized ESG insights, peer benchmarking, and decision-support tools that help drive responsible investment and long-term value creation. Participants receive comparative business intelligence, benchmarking reports, and engagement tools that support communication between investors and managers and help prepare for evolving sustainability and regulatory expectations. 

Our Vision:

An investment industry that plays a central role in creating a sustainable world.

Our Mission:

To provide financial markets with actionable ESG data, insights, and benchmarks that drive transparency and improve the sustainability performance of real assets.

GRESB benchmarks today cover thousands of real estate and infrastructure portfolios and assets worldwide. The results are used by more than 150 institutional investors representing over USD 50 trillion in assets under management to monitor ESG performance and inform capital allocation decisions. 

GRESB works with a global community of participants, including real estate companies, infrastructure funds, asset operators, investors, and ESG service providers. Each year, participants submit data through the GRESB Assessment Portal, where it is validated and analyzed to produce scores, ratings, and peer-group benchmarks that provide a comprehensive picture of ESG performance across the industry. 

The GRESB team brings together expertise from sustainability, data science, software engineering, real assets investment, and capital markets. We are united by a shared goal: to accelerate the transition to a more sustainable and resilient global economy by providing the data and insights that enable better investment decisions.

GRESB is headquartered in Amsterdam, with team members and representatives across major global markets including London, Boston, Washington DC, Singapore, and Sydney. Our diverse and international team works collaboratively to support the global real assets community while fostering an inclusive and innovative workplace.