Waterfall Enrichment Engine

15+ data sources.

Our Waterfall Enrichment cascades through 15+ premium data providers to find the most accurate data while minimizing your credit spend. One API call, multiple sources, best results.

The Waterfall

How the Works

We query providers in priority order. The moment we find accurate data, we stop—saving you credits and ensuring the highest quality.

1
Provider 1
98% accuracy
2
Provider 2
96% accuracy
3
Provider 3
94% accuracy
4
Provider 4
92% accuracy
5
Provider 5
90% accuracy
6
Provider 6
88% accuracy
7
Provider 7
86% accuracy
8
Provider 8
84% accuracy
15+ premium data providers in the waterfall

Credit Efficiency

60%

avg. credit savings

Only pay for one successful match. If Apollo has the data, we stop there—no wasted queries to downstream providers.

Speed Priority

<200ms

avg. response

Providers are ordered by response time. Get enriched data in under 200ms on average.

Accuracy First

94%

match accuracy

We prioritize providers with the highest accuracy rates, ensuring your Golden Record is always reliable.

25+ Data Points

The

Transform a simple email into a complete profile with firmographic, demographic, and social data.

Full Name

John Smith

Job Title

VP of Marketing

Company

Acme Corporation

Company Size

500-1000 employees

Revenue

$50M - $100M

Location

San Francisco, CA

LinkedIn

linkedin.com/in/johnsmith

Phone

+1 (555) 123-4567

Work Email

j.smith@acme.com

API Response

Design

Clean, predictable JSON responses with confidence scores and source attribution.

enrichment_response.json
1{
2 [#e06c75]">"success": [#d19a66]">true,
3 [#e06c75]">"credits_used": [#d19a66]">1,
4 [#e06c75]">"data": {
5 [#e06c75]">"email": [#98c379]">"john.smith@acme.com",
6 [#e06c75]">"verified": [#d19a66]">true,
7 [#e06c75]">"person": {
8 [#e06c75]">"full_name": [#98c379]">"John Smith",
9 [#e06c75]">"first_name": [#98c379]">"John",
10 [#e06c75]">"last_name": [#98c379]">"Smith",
11 [#e06c75]">"title": [#98c379]">"VP of Marketing",
12 [#e06c75]">"seniority": [#98c379]">"VP",
13 [#e06c75]">"department": [#98c379]">"Marketing"
14 },
15 [#e06c75]">"company": {
16 [#e06c75]">"name": [#98c379]">"Acme Corporation",
17 [#e06c75]">"domain": [#98c379]">"acme.com",
18 [#e06c75]">"industry": [#98c379]">"Technology",
19 [#e06c75]">"size": [#98c379]">"500-1000",
20 [#e06c75]">"revenue": [#98c379]">"$50M - $100M",
21 [#e06c75]">"founded": [#d19a66]">2010,
22 [#e06c75]">"location": {
23 [#e06c75]">"city": [#98c379]">"San Francisco",
24 [#e06c75]">"state": [#98c379]">"California",
25 [#e06c75]">"country": [#98c379]">"United States"
26 }
27 },
28 [#e06c75]">"social": {
29 [#e06c75]">"linkedin": [#98c379]">"https://linkedin.com/in/johnsmith",
30 [#e06c75]">"twitter": [#98c379]">"@johnsmith"
31 },
32 [#e06c75]">"enrichment_source": [#98c379]">"waterfall",
33 [#e06c75]">"confidence_score": [#d19a66]">98
34 }
35}

Simple Credit Model

1 credit for email enrichment, 10 credits to add phone. 11 total for full contact data. No hidden fees.

Confidence Scoring

Every enrichment includes a confidence score (0-100) so you can filter by data quality in your workflows.

Source Attribution

Know exactly which provider returned the data. Full transparency for compliance and auditing.

Full API documentation
Results

Real Customer

See how teams are using Waterfall Enrichment to accelerate their pipeline.

Te

TechStart Inc.

SaaS

Bounce Rate Reduction

42%

-42%
Gr

GrowthCo

Marketing Agency

Data Coverage

94%

+31%
En

Enterprise AI

Enterprise Software

Time Saved

12hrs

/week
Sc

ScaleUp Labs

VC-backed Startup

Lead Quality Score

8.7

+2.3

Frequently Asked Questions

What data points does Cleanlist return when enriching a contact?

+

Cleanlist returns 25+ data points per record including: verified work email, direct dial phone, mobile phone, LinkedIn URL, current job title, department, seniority level, company name, domain, industry, employee count, revenue range, headquarters location, founded year, and technologies used.

How many data providers does Cleanlist use?

+

Cleanlist queries 15+ premium data providers using waterfall enrichment. Each provider is queried in optimized sequence. The best data from each source is merged into one verified golden record with confidence scores per field.

Does Cleanlist integrate with my CRM?

+

Yes. Cleanlist integrates natively with Salesforce, HubSpot, Pipedrive, Outreach, Salesloft, and 10+ other platforms. You can also use the REST API, webhooks, CSV import/export, Google Sheets, Zapier, Make, or n8n.

What is the difference between partial and full enrichment?

+

Partial enrichment (1 credit) returns a verified work email plus company data. Full enrichment (11 credits) returns everything in partial plus direct dial phone number, mobile number, and complete firmographic data. Choose partial for email campaigns, full for multi-channel outreach.

How accurate is the enriched data?

+

Cleanlist guarantees 98% data accuracy. Emails are triple-verified (syntax, DNS, SMTP). Phone numbers are format-validated. Company data is cross-referenced across multiple sources. Each data point includes a confidence score so you know the quality level.

Ready to transform your

Get 30 free credits. No credit card required.