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CorrelAid

About Us

CorrelAid

CorrelAid helps non-profits to use data critically and reflected for their impact.

Together with our network of volunteers, we help nonprofits make the most of their data and use it thoughtfully and strategically to maximize their impact. This benefits everyone—and ultimately, civil society!

Our work is made possible by full-time staff and our CorrelAid volunteers. For general inquiries, please contact us at info@correlaid.org.

The remote office

Our employees organize and coordinate the everyday work of the CorrelAid network.

Zoé Wolter

Zoé Wolter

Management Team & Education

(she/her)

Zoé has been working at CorrelAid since 2018, where she is responsible for management and education. She studied "Politics and Administration" and "Social and Economic Data Science" in Konstanz and Gothenburg. By the way: Her first contact with programming was at a CorrelAid workshop!

Ann-Kristin Vester

Ann-Kristin Vester

Management Team

(she/her)

Ann-Kristin is part of the management team since July 2024 after several years working as a CorrelAid volunteer in projects and as a board member for education. She studied empirical social research in Bonn, Stuttgart and Copenhagen, worked for several years as a data scientist in the IT and financial sector and taught courses in R.

Johanna Weller

Johanna Weller

Office Management

(she/her)

Johanna has been working at CorrelAid since the beginning of July 2024. As office manager, she is responsible for accounting, funding and contract management as well as office organization.

©Jörg Farys

Leo Preu

Data Projects & Data Consultation Hour at Civic Data Lab

(he/they)

Leo has been active at CorrelAid since 2015 and has been employed full-time since February 2020. After a 2.5-year stint at the Civic Data Lab, where he successfully supported data projects and advised many organizations in data consultation hours, Leo is back in his old/new role - coordinating the data projects at CorrelLAB.

Nevena Nikolajevic

Nevena Nikolajevic

Project Manager Civic Data Lab

(she/her)

Nevena has been working at CorrelAid since November 2023 and primarily supports the work in the Civic Data Lab. She is jointly responsible for the technical support of the data projects.

Lena Marbach

Lena Marbach

Community Managerin

(she/her)

As the Community Manager, Lena is the contact person for the volunteers and organises various event formats as part of the Civic Data Lab and for CorrelAid.

Jonas Stettner

Jonas Stettner

Digital Infrastructure - Civic Data Lab

(he/him)

Jonas supports data projects in the Civic Data Lab and takes care of CorrelAid's infrastructure. He was a working student at CorrelAid for two years and studied Governance and Public Policy and Social and Economic Data Science in Passau and Konstanz.

Nora Berger

Nora Berger

Communication and Content Manager

(she/her)

Nora has workin for CorrelAid since April 2025. Previously, she worked as a copywriter in a performance marketing agency and as a communications manager in a social startup. With her background in advertising and market communication, she wants to encourage more people to use data in a meaningful and socially effective way.

Isabel Willmann

Isabel Willmann

Head of Community Management

(she/her)

Isabel is the Community Manager at CorrelAid and is responsible for the well-being of our volunteers. As such, she serves as your primary point of contact as a volunteer at CorrelAid. Isabel also coordinates the CorrelAidX local groups and ensures that our network continues to grow and thrive. As a certified mediator, she is committed to communication on an equal footing and to valuing diversity and inclusion.

Philipp Hummel

Philipp Hummel

Project Manager Civic Data Lab

(he/him)

Philipp has been working at CorrelAid since January 2026 and on data projects in the Civic Data Lab. He brings prior data science experience from both industry and academia and is excited to now be able to apply it to Data4Good.

Nora Cremille

Nora Cremille

Consultant and Speaker Data Literacy

(she/her)

Nora is in charge of our workshops and courses on data literacy and storytelling. She studied cognitive science and journalism and is delighted to now be able to apply this combination of technical and communication skills to the educational programs at CorrelAid.

Antonia Weber

Antonia Weber

Fundraising Assistance

(she/her)

Antonia has been supporting CorrelAid in the area of fundraising since June 2025. She brings experience from the civil society sector and philanthropy.

Lisa Vasetska

Lisa Vasetska

Working student - Data 101

Lisa has been working in the education department at CorrelAid e.V. since July 2025. After completing her bachelor's degree in psychology, she is now studying human factors at Chemnitz University of Technology. Through her work on educational programs, she combines her passion for data analysis and the design of effective learning formats with a commitment to social impact.

Jael Breuninger

Jael Breuninger

Working Student - Education

(she/her)

Jael has been working as a student trainee in the education department at CorrelAid since December 2025. She is studying for a master's degree in sociology at the University of Konstanz and has experience in quantitative data analysis.

Marius Matthiä

Marius Matthiä

Working Student Education & CorrelLab

(he/him)

Marius has been working as a student trainee at CorrelAid since January 2026, at the interface between education and CorrelLAB. He is studying for a master's degree in human factors at Chemnitz University of Technology and is enthusiastic about everything to do with data.

The Board

CorrelAid e.V. is organized as a nonprofit association and elects a board of directors composed of volunteers each year. The board works closely with the remote office and develops the long-term strategy for our work.

Sören Etler

Sören Etler

Chair of the board

(he/him)

Sören is a freelance data analyst and specializes in the analysis of language and geodata. He has been active at CorrelAid since 2022 and has organized CorrelCon, among other things. Our chair of the board is also unofficial Dino representative.

Rahel Becker

Rahel Becker

Chair of the board

(she/her)

Rahel has been involved with CorrelAid since 2015—first as a volunteer, then on the ethics committee, and this year for the second time as chair of the board. Through her involvement with CorrelAid, she aims to empower civil society organizations in particular to use the potential of their data.

Sylvi Rzepka

Sylvi Rzepka

Finances and donations

(she/her)

Sylvi joined CorrelAid in 2019. First she was co-lead of the LC Berlin, then tutor in the “RLernen” course and now she is responsible for finances on the board. Professionally, as a data scientist at Deutsche Bahn, she tries to contribute to the establishment of the #MachAusDatenTaten spirit.

Philipp Bosch

Philipp Bosch

Education

(he/him)

Philipp works by day as a data scientist for the Statistical Office of the Canton of Zurich and is trying to establish a data culture in public administration. He has already worn many hats at CorrelAid. But his favorite part has always been imparting knowledge. That is why he is mainly involved in education on the Board.

John Shorack

John Shorack

Community

(he/him)

John is a data analyst and freelance data journalist. He discovered CorrelAid in 2024 through a Data4Good project, has volunteered since then, and joined the Board in 2026 with a focus on strengthening the volunteer community.

Eli Wortmann-Kolundzija

Eli Wortmann-Kolundzija

Communication

(she/her)

With a PhD in Agricultural Economics Eli works in evidence-based policy analysis and behavioral economics with the aim to strengthen non-profits through ethical analyses and measurable impact. At CorrelAid she is part of the board with a focus on communication.

Maja Feuerhak

Maja Feuerhak

Data4Good Projects

(she/her)

Maja has been active at CorrelAid since January 2025 and has been responsible for projects on the board since January 2026. She studied Environmental Engineering at the Technical University of Berlin and works at a soil science engineering firm.

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