TL;DR
Waterfall enrichment cuts SDR research time from 30-40% of their day to under 10%, while increasing reachable contacts from 60-75% to 90-98%. This playbook covers the five-step implementation: build your target list, run enrichment, verify and segment, sync to outreach tools, and set up continuous automation.
Your SDRs spend 30-40% of their time researching prospects. Looking up emails. Finding phone numbers. Cross-referencing LinkedIn with the CRM.
That is time not spent selling.
Waterfall enrichment eliminates this research overhead. Instead of manually checking multiple tools, one enrichment query cascades through 15+ data providers and returns a verified, complete record.
Here is the playbook for implementing waterfall enrichment in your sales workflow.
Why Sales Teams Need Waterfall Enrichment
The single-source problem
Most sales teams rely on one data provider - Apollo, ZoomInfo, or Lusha. That provider has gaps.
Typical single-source coverage:
- Emails found: 50-70% of your target list
- Emails verified: 40-60%
- Phone numbers: 20-35%
- Complete records: 15-25%
Those gaps are pipeline you can not reach. Every missing email is a prospect you can not contact. Every wrong number is wasted rep time.
The waterfall solution
Waterfall enrichment queries 15+ providers in sequence:
- Emails found: 85-95%
- Emails verified: 80-90%
- Phone numbers: 50-70%
- Complete records: 45-55%
More contacts reachable. More conversations started. More pipeline created.
The Sales Enrichment Playbook
Step 1: Build your target list
Start with your ideal customer profile. Pull a list from:
- Sales Navigator - filter by title, industry, company size, geography
- CRM export - existing accounts with incomplete data
- Event lists - conference attendees, webinar signups
- Purchased lists - import CSVs for enrichment
You need at minimum: first name, last name, company name. LinkedIn URL is a bonus but not required.
Step 2: Run waterfall enrichment
Upload your list to Cleanlist or connect via API.
For email-only campaigns:
- Use partial enrichment (1 credit per record)
- Returns verified work email + company data
- Best for email-first outbound sequences
For multi-channel outreach:
- Use full enrichment (11 credits per record)
- Returns email + direct dial phone + mobile + full firmographics
- Best for sales teams running phone + email campaigns
Step 3: Verify and segment
After enrichment, your records include:
- Verification status - valid, catch-all, risky, invalid
- Confidence scores - how certain we are about each data point
- Company data - industry, size, revenue, location
Use this data to segment:
- Tier 1: Verified email + phone = multi-channel outreach
- Tier 2: Verified email only = email sequence
- Tier 3: Catch-all email = test with lower volume
- Remove: Invalid emails = protect sender reputation
Step 4: Sync to your outreach tools
Push enriched, segmented data directly to:
- Salesforce - create or update contact records
- HubSpot - enrich existing CRM data
- Outreach / Salesloft - add to sequences
- Pipedrive - update deal contacts
Field mapping ensures data lands in the right CRM fields.
Step 5: Set up continuous enrichment
New leads don't stop. Set up automated workflows:
For inbound leads:
- Webhook triggers enrichment when a new lead enters your CRM
- Enriched data is written back to the record in real-time
- SDRs see complete contact info before making the first touch
For outbound campaigns:
- Schedule weekly enrichment of new Sales Navigator exports
- Use Cleanlist Playbook Builder to automate the flow
- Enriched records are pushed to your sequencing tool automatically
For CRM hygiene:
- Monthly bulk enrichment of records with missing fields
- Quarterly email verification pass to catch decayed addresses
- Smart Columns to normalize titles and company names
Measuring Impact
Track these metrics before and after implementing waterfall enrichment:
Email deliverability
| Metric | Before | After (expected) |
|---|---|---|
| Bounce rate | 8-15% | Under 2% |
| Deliverability | 85-92% | 97-99% |
| Reply rate | 1-3% | 3-7% |
Lower bounces protect your domain reputation. Better deliverability means more emails land in inboxes.
Pipeline coverage
| Metric | Before | After (expected) |
|---|---|---|
| Contacts with email | 55-70% | 85-95% |
| Contacts with phone | 15-30% | 50-70% |
| Contacts reachable (any channel) | 60-75% | 90-98% |
| Multi-channel reachable (email + phone) | 15-25% | 45-55% |
More reachable contacts = more conversations = more pipeline.
Rep productivity
| Metric | Before | After (expected) |
|---|---|---|
| Time researching prospects | 30-40% of day | 5-10% |
| Manual data entry | 2-3 hrs/week | Near zero |
| Contacts worked per day | 30-50 | 60-100 |
Reps spend time selling instead of researching.
Common Objections (And Responses)
"We already use Apollo/ZoomInfo"
Great. Export the records where Apollo has gaps. Run them through waterfall enrichment. You will fill 30-50% of those gaps. The tools complement each other.
"Waterfall enrichment is too expensive"
Calculate cost per usable record, not cost per record. If single-source gives you 600 usable records out of 1,000, and waterfall gives you 900, the cost per reachable prospect is similar. Plus you get 300 more contacts to work.
"Our data is good enough"
Pull a report on bounce rates and missing phone numbers. If bounce rate is above 3% or phone coverage is below 40%, there is measurable room to improve.
"We don't have time to set this up"
Cleanlist integrates with your CRM in minutes. Upload a CSV, connect Salesforce or HubSpot, and run your first enrichment in under 10 minutes. No engineering required.
Advanced Plays
Play 1: Competitive displacement campaigns
Target companies using a competitor's product:
- Build a list of competitor's customers (G2 reviews, case studies, job posts mentioning the tool)
- Enrich decision-maker contacts via waterfall
- Run a targeted displacement sequence highlighting switching benefits
Play 2: Expansion revenue
Enrich existing customer accounts to find new buying centers:
- Export customer account list from CRM
- Enrich to find VP/Director-level contacts in adjacent departments
- Create expansion opportunity sequences for cross-sell/upsell
Play 3: Event follow-up acceleration
Conference badge scans have minimal data:
- Upload badge scan list immediately after the event
- Run full waterfall enrichment (email + phone + company)
- Push to outreach sequences within 24 hours
- Beat competitors who are still manually researching contacts
Frequently Asked Questions
How fast can I enrich a large list?
Bulk enrichment of 1,000 records takes 5-15 minutes. For 10,000+ records, schedule overnight processing. Real-time API enrichment returns results in 2-30 seconds per record.
Will this affect my email sending reputation?
The opposite. Waterfall enrichment with verification removes invalid and risky emails before you send. This protects your domain reputation and improves deliverability.
Can I enrich just the missing fields in my CRM?
Yes. Upload records with partial data. Cleanlist identifies missing fields and fills only what is needed. You don't re-enrich data you already have.
Waterfall enrichment is the highest-leverage investment a sales team can make in data quality. More contacts reached, fewer bounces, less time researching. Start your free trial and run your first enrichment in under 10 minutes.