waterfall-enrichmentlisted

# Waterfall Enrichment ## Overview No single B2B data provider covers more than 60-75% of contacts. A multi-provider waterfall chains providers in sequence, each firing only when the previous returns empty. The result: 85-92% coverage at optimized cost. This skill covers complete waterfall architecture: 3 separate waterfalls for company data, email, and phone — each with independently optimized provider ordering and verification integration. ## Frameworks Referenced This skill is grounded in public frameworks and source material relevant to the task: - **DAMA-DMBOK Data Quality Dimensions.** Use the relevant method or published guidance where it improves the requested deliverable; do not cite it as decoration. - **Ziellab 3-Waterfall Architecture.** Use the relevant method or published guidance where it improves the requested deliverable; do not cite it as decoration. - **HubSpot Academy — CRM Automation.** Use the relevant method or published guidance where it improves the requested deliverable; do not cite it as decoration. ## When to Use - "Build an enrichment waterfall" - "Improve our data coverage" - "Chain multiple enrichment providers" - "Design a cost-optimized enrichment pipeline" - "Set up waterfall enrichment in Clay" ## Step-by-Step Process ### Phase 1: Three Separate Waterfalls Build independent waterfalls for different data types: **Company Waterfall**: 1. Clay native / Clearbit (cheap, broad) 2. Apollo Company (mid-cost, good SMB coverage) 3. ZoomIn