We're building the data layer for Dutch real estate.
Voseno is a Dutch proptech data company. We aggregate, normalize, and enrich property data from authoritative Dutch sources, making it instantly accessible via clean REST APIs so developers can focus on building products, not data pipelines.
The problem
Dutch property data is siloed across 10+ authoritative registries and 1,400+ listing portals, each with their own formats, APIs, and access requirements. Building anything data-intensive in Dutch PropTech means months of plumbing.
Our approach
We do the plumbing once, for everyone. A single integration with Voseno replaces direct connections to BAG, Kadaster, WOZ, EP-Online, CBS, plus the entire commercial listings ecosystem. Normalized, deduplicated, enriched, and live.
Our edge
We're obsessive about data quality. 99% deduplication accuracy. BAG-linked identifiers on every listing. Source transparency on every record. We don't cut corners because our customers are building products that people trust with six-figure decisions.
Built on authoritative sources
Every data point in Voseno traces back to an official Dutch registry. No consumer portal scraping.
BAG
Address registry, stable property IDs, geometry, construction year
Kadaster (BRK)
Ownership records and transaction history
WOZ-Waardeloket
Municipal tax valuations, updated annually
EP-Online (RVO)
Certified energy performance labels under EU EPBD
CBS Statistics NL
Neighbourhood demographics, income, livability
Timeline
Company founded
Voseno incorporated in the Netherlands. Research into Dutch property data fragmentation, registry APIs, and listing portal coverage.
Development starts
Scraping engine built covering 1,400+ Dutch listing sources. BAG-linked deduplication pipeline. Nationwide coverage achieved.
Private beta
First beta customers onboarded. SDK alpha published for Python and JavaScript. API documentation v1.
Listings API launched
Listings API opened to all developers. 1,400+ sources, 99% deduplication accuracy, sub-minute freshness.
Platform expansion
Property API, Area Insight API, and Valuation API in development. Growing customer base across PropTech and financial services.
Get in touch
For demos, partnerships, or press inquiries.