Data Enrichment Waterfall

Querying multiple data providers in sequence, using the next only where the previous returned nothing, to raise coverage without paying for duplicate lookups.

Why sequence beats a single provider

No provider has complete coverage, and their gaps differ by geography and company size. A waterfall raises fill rate substantially while only paying the second and third provider for records the first could not resolve.

Decide precedence deliberately

When two providers disagree, something must win. Undeclared, the winner is whichever ran last — which is not a decision, it is an accident.

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