Enrich Client Contact Data for Marketing Agencies
Purpose-built data enrichment for your industry. Verify contacts, append missing fields, and enrich every record with data from 25+ providers.
How does Cleanlist enrich client contact data for marketing agencies?
Cleanlist gives marketing agencies a single platform to clean, verify, and enrich client contact lists across every account. Upload any client's CSV, regardless of format, column naming, or data quality, and Cleanlist normalizes, deduplicates, verifies emails, appends phone numbers, and enriches with firmographic data in under 5 minutes. Agencies can manage multiple client workspaces within one Cleanlist account, track credit usage per client for billing transparency, and deliver enriched lists that improve campaign performance from day one. No more passing off dirty client data to an email platform and hoping for the best.
Why this is hard to do by hand
Marketing agencies manage client prospect data across multiple accounts, campaigns, and verticals simultaneously, each with different data requirements and quality standards. Agency teams inherit messy client data that arrives via CSV dumps from client CRMs, and they need to enrich it quickly to launch campaigns on deadline. The challenge compounds because agencies bill for results, not data cleaning time: every hour spent researching and fixing client contact data is either unbillable overhead or awkward scope creep. Most agencies lack dedicated data operations staff, so enrichment falls on account managers who should be focused on strategy.
Agencies Waste 6-10 Hours Per Client Per Month on Manual Data Cleaning
6-10hrsmonthly hours wasted on manual data cleaning per agency client
A 2025 HubSpot Agency Partner survey found that marketing agencies spend an average of 6-10 hours per client per month on data-related tasks: cleaning imported lists, fixing bounced emails after campaigns, deduplicating records across campaigns, and manually researching missing contact fields. For an agency with 15 active clients, that is 90-150 hours per month of unbillable (or awkwardly billable) data work, the equivalent of a full-time employee doing nothing but data cleanup. The operational impact goes beyond labor cost: campaigns launched on dirty data produce lower open rates, higher unsubscribe rates, and unhappy clients questioning the agency's attention to detail. Cleanlist eliminates 80-90% of this manual work by automating the cleaning, verification, and enrichment workflow. Agency customers report reducing their per-client data prep time from 6-10 hours to under 30 minutes, freeing account teams to focus on strategy and creative execution.
Source: HubSpot Agency Partner Benchmark 2025; Cleanlist agency customer interviews
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
Create a Client Workspace
Set up a separate workspace for each client within your Cleanlist account. This keeps data isolated, enables per-client credit tracking, and provides client-specific enrichment history for reporting and billing.
- 02
Upload Client Contact Data
Drag and drop the client's contact list in any CSV format. Cleanlist auto-maps columns regardless of naming conventions (the client's 'Email Address' vs 'email_addr' vs 'Contact Email' all map correctly). No manual field mapping required.
- 03
Clean and Deduplicate
Cleanlist identifies duplicate records, normalizes formatting (phone numbers, addresses, company names), and removes obviously invalid entries. For agencies receiving data from multiple client sources, deduplication across imports prevents the same prospect from receiving multiple outreach touchpoints.
- 04
Verify All Email Addresses
Every email is verified before campaign launch. For agencies running email campaigns, a clean list means higher inbox placement, fewer client complaints about bounce rates, and no risk to the agency's or client's sender reputation.
- 05
Enrich with Missing Data Points
Append missing fields: job title, company, phone number, industry, company size, and LinkedIn URL. For agencies building ABM target lists, Cleanlist adds firmographic data that enables account-level segmentation the client could not do with their raw data.
- 06
Export Client-Ready Enriched Data
Download enriched data formatted for the client's CRM or email platform (HubSpot, Salesforce, Mailchimp, Marketo). Include a data quality summary report showing: records cleaned, duplicates merged, emails verified, and fields enriched, perfect for client deliverables.
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 |
|---|---|---|
| Multi-client data management | Separate spreadsheets per client | Isolated client workspaces with per-client credit tracking |
| Column format compatibility | Manual mapping for every client's CSV format | Auto-detection across any column naming convention |
| Email verification before campaign | Send and monitor bounce rate | Pre-send verification (95%+ deliverability guaranteed) |
| Time to clean a 5,000-record client list | 4-8 hours (intern or VA) | Under 3 minutes |
| Client-ready reporting | Manual summary in client deck | Auto-generated data quality report per job |
| Cost model for agencies | Hourly labor (unbillable overhead) | Per-credit, passable to client as a line item |
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.
Does Cleanlist have good coverage for my industry?
Cleanlist's waterfall approach queries 25+ specialized providers, ensuring strong coverage across industries. Match rates vary by segment but typically exceed 85% for B2B contacts.
Can I track enrichment credits per client for billing?
Yes. Cleanlist's workspace feature lets you create separate environments for each client. Credits consumed in each workspace are tracked separately, so you can see exactly how many credits were used for Client A vs Client B. Many agencies pass enrichment costs to clients as a line item or bundle it into their data management retainer.
How do agencies handle data from clients with different CRM systems?
Cleanlist accepts CSV files from any source and auto-detects column formats regardless of the originating CRM. Whether a client exports from HubSpot, Salesforce, Pipedrive, or a custom database, Cleanlist normalizes the data into a standard format. You can then export enriched data in the format required by the client's CRM or your agency's email platform.
Can multiple team members at my agency use the same Cleanlist account?
Yes. Cleanlist supports team accounts with role-based access. Account managers can upload and process data within their client workspaces, while agency admins can view credit usage across all clients. This prevents individual team members from needing separate accounts and centralizes billing.
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.