Duplicate company finder: one company, many spellings
In short: Upload a list with a Company column and an email column. Names are cleaned (case, punctuation, Inc., LLC, Ltd, The) and rows that share a cleaned name or a company email domain are grouped, so spelling variants of one company show up together with a suggested name. Limit: Groups are suggestions; two businesses can share a domain or a name.
Upload the list and choose the Company column. Names are lower-cased, punctuation and endings such as Inc., LLC and Ltd are removed, and rows that share a cleaned name or a company email domain are put in one group. You get the groups with more than one spelling and a file with one suggested name for each.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
Sample result
Six company names are really three companies, and three rows would be renamed.
- Companies
- 3
- Names as typed
- 6
- Rows to rename
- 3
What this means for you
One company written three ways no longer looks like three accounts.
- Cleaned name and company domain
- Personal mailboxes never join rows
- Suggested name per company
- List and variants downloads
- Companies
- Duplicates
- CSV
By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us
With one name per company, check the addresses.
- Copy the Email column from the downloaded list, or use the check button under the result.
- Upload or paste it at /verify. Every address gets a live mailbox check, and the first 100 email checks are free with a Google sign-in, no card.
How do I group the same company written different ways?
- Upload the .xlsx or CSV, or paste the cells with the header row first. It needs a Company column and an Email column.
- Check the Company column is the right one, then read the groups that hold more than one spelling.
- Look at the domains beside each group to confirm they are the same company.
- Download the list with a Suggested company name column, or the table of variants, and use it to fix the source.
Example
- You enter
- Seven rows with a Company column:
Northwind Inc.,NORTHWIND, IncandThe Northwind Companyat one example.com domain,Contoso LtdandContoso Limited(one on a Gmail address),Fabrikam, and one blank. - You get
- Six names become three companies. Two companies have more than one spelling and three rows would be renamed: the two other Northwind spellings and
Contoso Limited. The suggested names areNorthwind Inc.andContoso Ltd, and the blank row is counted and left out. - Limits
- Runs in your browser; nothing is uploaded. Files up to 25 MB.
How does it decide two names are one company?
Each name is lower-cased, "&" is read as "and", punctuation is removed, and words such as Inc, LLC, Ltd, Limited, Corp, GmbH, Company and The are dropped. Two rows with the same cleaned name go in one group. Two rows whose email addresses are on the same company domain also go in one group, so "Acme" and "Acme Group" at one domain are put together. Gmail, Outlook and other personal mailboxes never join rows, because a shared mail provider says nothing about the company.
Why does it matter for cold email?
Several spellings of one company make it look like separate accounts, so the same company can get several sequences, and a limit of contacts per company is counted wrongly. Pair it with the account contact coverage report and limit contacts per company, and use company name cleaner for the name used inside the email.
What should I check before trusting a group?
A group is a suggestion. Two different businesses can share a domain, such as a group's brands under one parent, and two companies can have the same name in different places. The domains shown beside each group are there so you can see this. The suggested name is the spelling used on most rows, or the first one when they tie.
Who uses this tool, and for what?
- Cold email senders
- Stop one company getting two sequences because its name was written two ways.
- Sales ops
- Tidy account names after merging exports from several tools.
- Agencies
- Count accounts correctly in a client report.
What can’t this tool tell you?
- Groups are suggestions; two businesses can share a domain or a name.
- Misspellings are not matched unless the rows share a company email domain.
- Names that differ by more than case, punctuation and the endings it removes are separate groups.
- The list needs an email column; without one only the names are compared.
Common questions
- Does it change my file?
- No. It adds two columns to the download, Suggested company name and Company group, and leaves every other cell as it was.
- Does it find typos like Northwnd?
- No. It matches names that are the same once case, punctuation and endings are removed, or that share a company domain. A misspelling with a different domain is not matched.
- Why is a Gmail contact in a group?
- Because its company name matched the others. Its address is never used to join rows.
- Can it find the same person twice?
- No. Use the duplicate contact finder for people; this tool looks at companies.
- Which column is used?
- The first column whose header says company, organization, account, employer or business. You can pick another.
- Is my file uploaded to SimpleVerifier?
- No. Everything is grouped in your browser.
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.