Deduplicate Your Contacts Automatically
Deduplicate Your Contacts Automatically with Cleanlist's waterfall enrichment. Upload a CSV or connect your CRM. Every new workspace opens on Scale for 14 days: 250 credits, 3 seats, no card.
How does Cleanlist deduplicate your contacts automatically?
Cleanlist's deduplication engine uses multi-field fuzzy matching to identify duplicates that exact-match tools miss entirely. It handles name variations (Robert vs. Rob vs. Bob), company aliases (IBM vs. International Business Machines), email domain differences (company.com vs. subsidiary.com), and even phone number formatting variations. Matched pairs are presented with merge recommendations, you control which record survives and which values are kept.
Why this is hard to do by hand
Duplicate contacts are more than a cosmetic problem, they actively distort your sales pipeline. When the same prospect exists as two records, they might receive the same email twice (annoying the buyer and triggering spam complaints), appear in two different reps' pipelines (creating territorial conflicts), or accumulate engagement data across fragmented records (making lead scoring useless). Salesforce estimates that 10-30% of records in the average CRM are duplicates.
Duplicates Cost Sales Teams $1,680 Per Rep Per Quarter in Wasted Outreach
$1,680quarterly cost per rep from duplicate-driven wasted outreach
When the same prospect exists as multiple records in a CRM, the downstream effects compound across the sales process. Cleanlist modeled the impact using data from 65 deduplication projects: the average CRM had 18% duplicate contact records. Those duplicates resulted in duplicate emails sent to the same prospect (creating a negative brand impression), duplicate call attempts (wasted rep time), and inflated pipeline values (the same opportunity counted twice). When quantified, each sales rep wasted an average of 3.5 hours per week on duplicate-related inefficiency: calling someone a colleague already spoke with, researching a prospect who already exists under a different record, or reconciling conflicting data between duplicate entries. At an average loaded cost of $120/hour for a B2B sales rep, that is $1,680 per quarter per rep in pure waste. For a 10-person sales team, annual duplicate-related waste exceeds $67,000, more than enough to fund a comprehensive CRM cleanup.
Source: Cleanlist deduplication impact analysis, 65 customer projects, Q1 2026
Pay for the result, not the lookup
Cleanlist walks 25+ providers in cost order on a single lookup and charges once for what comes back. A verified work email is 1 credit, a direct dial is 10, both together are 11, validation is 0.5 and AI qualification is 5. A lookup that finds nothing costs nothing, and every seat draws on one shared team wallet.
- 25+Providers queried in cost order on a single lookup
- 98%Verified work email on a 500-lead stratified benchmark
- 85%Direct dial on that same 500-lead test
- 0Credits to search. Free and unlimited on every plan
How It Works
- 01
Select Deduplication Scope
Choose to deduplicate your entire CRM, a specific list or segment, or a freshly imported file before it enters your database. Cross-object deduplication (e.g., leads vs. contacts in Salesforce) is supported.
- 02
Configure Matching Rules
Set matching sensitivity: Strict (exact name + exact email), Standard (fuzzy name + same domain), or Aggressive (fuzzy name + company match across any email). Custom rules can weight specific fields higher than others.
- 03
Duplicate Pair Detection
Cleanlist scans your records and identifies duplicate pairs (or groups) with a match confidence score. Each pair shows a side-by-side field comparison highlighting where records agree, disagree, or have gaps.
- 04
Merge Strategy Selection
Choose a merge strategy: Keep Most Complete (the record with the most filled fields survives), Keep Most Recent (last-modified record wins), Keep Highest Score (for lead-scored databases), or Manual Review (you pick the winner for each pair).
- 05
Preview & Approve Merges
Review the proposed merged records before any changes are applied. For each merge, see exactly which values will be kept from which source record. Override individual field choices if needed.
- 06
Execute & Prevent Future Duplicates
Apply approved merges to your CRM or export the deduplicated list. Enable real-time duplicate prevention to catch and block duplicates at the point of entry, form submissions, imports, and manual creation.
Key Benefits
98% Email Accuracy
Real-time email verification catches bounces, catch-alls, and disposable addresses before they cost you.
25+ 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.
14-Day Scale Trial
250 credits and 3 seats for 14 days. No credit card, no sales call, no commitment.
Manual Process vs Cleanlist
| Feature | Manual | Cleanlist |
|---|---|---|
| Matching method | Exact match on email only (Excel VLOOKUP) | Multi-field fuzzy matching (name + email + company + phone) |
| Name variation handling | Bob and Robert are different people | 5,000+ nickname mappings + phonetic similarity scoring |
| Cross-object dedup (Salesforce) | Requires expensive third-party add-on | Built-in lead-to-contact and account-to-account matching |
| Time to dedup 50K records | Days of manual review in spreadsheets | Under 15 minutes (detection + merge preview) |
| Future duplicate prevention | No prevention, duplicates re-accumulate immediately | Real-time blocking at point of entry |
Frequently Asked Questions
How accurate is Cleanlist's data?
Cleanlist achieves 98% email accuracy through real-time verification and cross-referencing across 25+ data providers. Every record is validated before delivery.
What do I get when I sign up?
Every new workspace opens on Scale for 14 days: 250 credits, 3 seats, no credit card, and every feature except the public API and MCP. After the trial the Free plan is $0 for 30 credits a month. Each credit processes one record (enrichment, verification, or lookup).
What data providers does Cleanlist use?
Cleanlist uses waterfall enrichment across 25+ 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?
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 deduplicate my data?
Most jobs complete in under 2 minutes for up to 10,000 records. Larger files are processed in batches with progress updates.
How does fuzzy matching work and how accurate is it?
Fuzzy matching uses algorithms like Levenshtein distance (edit distance), Jaro-Winkler similarity, and phonetic matching (Soundex/Metaphone) to identify records that refer to the same person despite spelling variations. Cleanlist combines these with domain-specific logic (nickname databases, company alias tables) to achieve 95%+ duplicate detection accuracy with under 1% false positive rate on Standard sensitivity settings.
What happens to the engagement history on merged records?
When two records are merged in your CRM, Cleanlist preserves engagement history from both records on the surviving record. Email opens, form submissions, page views, and meeting notes from the duplicate are transferred to the master record. This ensures no historical context is lost during deduplication.
Can I deduplicate across multiple CRM objects (e.g., Salesforce Leads vs. Contacts)?
Yes. Cross-object deduplication is one of Cleanlist's most valuable features for Salesforce users. The tool identifies when the same person exists as both a Lead and a Contact (common after trade shows and webform submissions) and recommends conversion and merge actions that preserve all associated data.
Gain full access for 14 days.
Upload a CSV or connect HubSpot, Salesforce or Pipedrive. Searching costs nothing, and a lookup that finds nothing costs nothing.
No card to start. Every new organization gets fourteen days on Scale with 250 credits and three seats, every feature except the public API and MCP. The Free plan stays at 30 credits a month after that.
Gain full access for 14 days.
250 credits, 3 seats, no card needed. Access to every feature except public API & MCP.