Data & Enrichment
B2B contact and account data: databases, enrichment waterfalls, and the orchestration layers now built on top of them. Every claim in this category reduces to two questions the vendors rarely answer in public. First, accuracy: coverage and match rates are advertised by everyone and measured by almost no one, so bounce rates on delivered emails and independently measured fill rates separate the graded from the asserted. Second, provenance: where the records come from, whether they are licensed, contributed, or scraped, under what legal theory, what the lawful basis is for EU records under GDPR, and whether the vendor stands behind that answer with indemnification. A vendor precise about provenance is rare enough to be a signal in itself.
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Vendor records will appear here once verified and published. The index is updated continuously as new vendors are evaluated.