Ideal For
Teams with cluttered CRMs, agencies inheriting client data, and anyone with a spreadsheet nobody wants to touch.
Data Cleaning · DataMinions
Data cleaning services for messy CRMs, spreadsheets and mailing lists
Duplicates, broken formats, old contacts and half-filled columns make every report and campaign harder than it should be. Our researchers clean your data by hand: removing duplicates, fixing formats, flagging out-of-date records and leaving you with a list you can trust.
Overview
Messy data costs more than it looks
The same company appears three times, phone numbers are in five different formats, half the contacts have left their jobs, and nobody trusts the numbers in the report. Every campaign and every decision built on that data starts at a disadvantage.
Our data cleaning is done by trained people, not just a script. We work through your CRM export, spreadsheet or mailing list, fix what is wrong, flag what needs a decision, and return it in the same format, ready to use.
What You Get
One clean version of your data: no duplicates, consistent formats and clear flags on records to review.
Core Outcome
Reports you can trust, fewer bounced emails, and less time fixing data by hand.
What We Clean
Everything that makes data hard to use
Data Deduplication
Find and merge duplicate contacts and companies, keeping the most complete and recent details.
Format Fixes
Consistent names, phone numbers, addresses, dates and job titles across every row.
Out-of-Date Contacts
Flag people who have changed jobs and contacts that no longer work, so you can update or remove them.
CRM Data Cleaning
Work from your CRM export and return it in the same columns, ready to import back without breaking anything.
Spreadsheet Cleanup
Excel and Google Sheets tidied up: structure, columns, formulas and formatting that your team can work with.
Mailing List Cleaning
Remove duplicates and flag bad addresses before a campaign, to protect your sender reputation.
How It Works
From a messy file to clean data in four steps
- 1. Share your data: send the export or spreadsheet and tell us what "clean" means for you.
- 2. Sample: we clean a small sample first so you can check the result.
- 3. Clean: people work through every record, fixing and flagging as they go.
- 4. Deliver: you get the data back in your format, with a short summary of what changed.
Human-Checked
Rules handle the obvious fixes; people make the judgement calls a script gets wrong.
One-Off or Ongoing
Clean a single file, or keep a dedicated person on your account to keep your data clean every week.
Round-the-Clock Team
Our team works 24/7 across time zones, so large cleanups keep moving overnight.
Get Started
Tell us what's wrong with your data
Share roughly how many records you have, where they live (CRM, spreadsheet, mailing list) and what is causing problems. We'll reply with the best way to clean them and next steps.
- Free consultation, no commitment
- A sample first, so you can check the result
- Returned in the same format, ready to use
Free Consultation
Request your free consultation
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Explore Services
Use Cases
When teams outsource data cleansing
Before a CRM Move
Clean the data before importing it into a new CRM, so you don't carry old problems across.
Before a Campaign
Clean the mailing list first, to cut bounces and protect deliverability.
Inherited Data
Agencies and new managers taking over a list or CRM that nobody has maintained.
Reporting Problems
When the numbers in reports don't match, clean data is usually the fix.
FAQs
Frequently asked questions about data cleaning
What is a data cleaning service?
It means fixing the problems in your existing data: removing duplicates, making formats consistent, and flagging or updating records that are out of date.
Is data cleansing the same as data cleaning?
Yes, the two terms mean the same thing: making your data accurate, consistent and free of duplicates.
Can you clean data in Excel and Google Sheets?
Yes. We work in Excel, Google Sheets and CRM exports, and return the file in the same format.
Can I see a sample first?
Yes. We clean a small sample first so you can check the result before we do the full file.
Can you add missing details too?
Yes. Once the data is clean we can fill in missing emails, phone numbers and company details. See our data enrichment services.
How does pricing work?
You can start hourly with no commitment, or move to a monthly retainer for ongoing cleanup. See our pricing page or book a free call for a recommendation.