Verify Your Contacts Are Still Accurate
Verify Your Contacts Are Still Accurate with Cleanlist's waterfall enrichment. Upload a CSV or connect your CRM — 30 free credits to start.
Start Free — 30 CreditsThe Problem
You inherited a CRM full of contacts from past reps, merged databases, and imported lists. How many of those contacts still work at the listed company? How many of their phone numbers connect to a real person? B2B contact data decays at 2-3% per month, which means a database that was 95% accurate in January is only 71% accurate by December. Every rep calling disconnected numbers or emailing bounced addresses is burning time and credibility.
How Cleanlist Solves This
Cleanlist's contact verification checks every data point on a contact record: email deliverability, phone number connectivity, job title currency, and company association. Unlike tools that only verify email, Cleanlist validates the full contact profile — confirming the person still works at the listed company, in the listed role, and is reachable at the listed phone number and email.
Phone Numbers Decay 2x Faster Than Email Addresses in B2B Databases
While the 2-3% monthly decay rate for B2B data is well documented, Cleanlist's verification data from Q1 2026 reveals that not all fields decay at the same rate. Across 850,000 contact verifications, email addresses had a 2.1% monthly invalidity rate while phone numbers showed a 4.3% rate — roughly double. The primary driver is that professionals change phone numbers more frequently than email addresses: new company-issued phones, carrier switches, number recycling, and the trend toward using personal mobile numbers that change with carrier promotions. For sales teams that rely on cold calling, this means phone data that was accurate 6 months ago is now invalid for roughly 25% of contacts. The practical implication: phone numbers should be re-verified every quarter, even if you only re-verify emails every 6 months.
Source: Cleanlist verification data, 850K contact records, Q1 2026
How It Works
Select Contacts to Verify
Choose specific CRM lists, segments, or your entire database. Filters let you target contacts that have not been verified in 90+ days, contacts from imported lists, or contacts with missing fields.
Email Deliverability Check
Every email address is verified via multi-provider SMTP validation. Bounced, deactivated, and high-risk addresses are flagged. Addresses that have been reassigned to a different person are detected where possible.
Phone Number Validation
Direct dials and mobile numbers are checked for connectivity: is the number active, is it assigned to a real subscriber, and does the carrier match the expected geography? Disconnected and reassigned numbers are flagged.
Job Title & Company Confirmation
Cleanlist cross-references the contact's listed job title and company against current employment data from multiple sources. Contacts who have changed roles or companies are flagged with updated information.
Verification Status Report
Each contact receives a composite verification score: Fully Verified (all fields confirmed), Partially Verified (some fields outdated), or Stale (multiple fields no longer accurate). A summary dashboard shows your database's overall health.
Update or Archive Stale Contacts
Fully verified contacts are marked as current. Partially verified contacts can be auto-updated with fresh data. Stale contacts can be archived, re-enriched with current information, or flagged for manual review.
Key Benefits
98% Email Accuracy
Real-time email verification catches bounces, catch-alls, and disposable addresses before they cost you.
15+ Data Providers
Waterfall enrichment across multiple providers means higher match rates than any single-source tool.
No Code Required
Upload a CSV, connect your CRM, or use the API. Works however your team prefers.
30 Free Credits
Start enriching immediately. No credit card, no sales call, no commitment.
Manual Process vs Cleanlist
| Feature | Manual | Cleanlist |
|---|---|---|
| Verification scope | Email only (if any verification is done) | Email + phone + job title + company — full profile |
| Job change detection | Only found when outreach bounces or gets no reply | Proactive detection with updated employer info |
| Phone line status | Call and find out (wastes rep time) | Pre-verified: active, disconnected, or reassigned |
| Database-wide verification (10K contacts) | Impractical — would take weeks of manual calling/emailing | Under 20 minutes (automated multi-point verification) |
| Verification freshness | One-time manual check, never repeated | Scheduled re-verification (monthly/quarterly) |
Frequently Asked Questions
How accurate is Cleanlist's data?
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Cleanlist achieves 98% email accuracy through real-time verification and cross-referencing across 15+ data providers. Every record is validated before delivery.
How many free credits do I get?
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Every new account starts with 30 free credits. Each credit processes one record (enrichment, verification, or lookup). No credit card required to start.
What data providers does Cleanlist use?
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Cleanlist uses waterfall enrichment across 15+ providers including major B2B data sources. The system automatically selects the best provider for each record to maximize match rates.
Can I connect my CRM?
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Yes. Cleanlist integrates with HubSpot, Salesforce, and other CRMs. Enriched data syncs back automatically. You can also upload CSV files or use the REST API.
How long does it take to verify my data?
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Most jobs complete in under 2 minutes for up to 10,000 records. Larger files are processed in batches with progress updates.
How is contact verification different from email verification?
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Email verification checks only whether an email address can receive mail. Contact verification is a broader process that validates the entire contact profile: email deliverability, phone number connectivity, current job title, and company association. It answers the question 'Is this person still reachable at this company with these contact details?' — not just 'Is this email address valid?'
What percentage of my contacts are likely to be outdated?
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Industry data shows B2B contact records decay at 2-3% per month. If your database has not been verified in 12 months, roughly 25-30% of records are likely to have at least one outdated field. Cleanlist's pre-verification audit will give you an exact breakdown before any credits are used.
Ready to verify your contacts?
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