Oliver Moldenhauer
Director & Lead Consultant
DataStrategies4Change
Data strategies for emancipatory change
We help NGOs and campaigns turn their data into impact — smarter fundraising, clear dashboards, political monitoring, and strategy you can act on.
+6.3%
fundraising surplus, one client’s letter campaign
30,000+
political documents monitored
12+
organisations helped
35+
years in the NGO sector
€200M+
donations analysed
What we do
Smarter mailings
Machine learning predicts who’s worth writing to — less postage and CO₂, more impact per letter.
Political monitoring
PoliMon reads 30,000+ documents across German politics for the topics you care about.
Dashboards & reports
Your key numbers at a glance, recalculated every night. Powered by UNISAN.
Strategic advice
The right metrics, surveys and evaluation — concrete decisions, not academic work.
Got a data problem that doesn’t fit a box? That’s what we do too →
Our mission
Too often, data is used to concentrate power — by corporations, platforms and political actors. We believe the same methods, in the right hands, can level the playing field. Used well, data analysis and honest metrics make non-profit work measurably more effective. Our mission is simple: help mission-driven organisations have the greatest possible impact.
AI engineering Data engineering Data science Machine learning Data visualisation Forecasting Surveys & evaluation Strategic advice
Trusted by
How we work
Partners, not a vendor
We’re not a faceless corporation. We know the sector, and we shape everything in dialogue with you — nothing off-the-shelf.
No cloud, just our machines
There is no cloud — only other people’s computers. Your sensitive data stays on encrypted machines in our office.
Practical, not academic
We build concrete decision aids — automated and easy to understand — not reports that gather dust.
Let’s talk
Book a free 45-minute consultation, or get our occasional newsletter — new tools, case studies, and what we’re learning.
The DS4C team
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