How to find them
Search Google Maps for each name variation you have used, your phone number, your old address and your website domain. Also try your own name, in case a profile was created under your personal name.
Make a list with the URL of each hit, who owns it, its address, its phone number and the number of reviews. A simple spreadsheet is enough.
Decide which listing stays
Usually you keep the one with the most history, the most reviews, and a verified owner. If the oldest profile has stale details, you can update it instead of starting over.
Do not keep two just because both have a few reviews. Two partial listings are worse than one strong one.
Cases and the right tool
If you own both, you can often request a merge through Google's support flow. If a listing is for a place you no longer operate from, mark it as moved or closed. If someone else created a copy of your business, claim it if possible or report it as a duplicate.
If the extra profile belongs to an unrelated business at the same address, such as a past tenant, mark that one as closed rather than merging.
Reviews tied to a merged listing generally carry over, but there is no firm promise, so screenshot your reviews first. Export or record the count and the strongest ones before you start.
Do not delete a profile with strong reviews unless you have a plan for what happens next.
Preventing new duplicates
Before creating any profile, search for existing ones. Keep a single log of which email owns which listing. When you move or rename, update the same profile rather than building a new one.
Also check outside directories, which often feed incorrect data into map services. A cleanup of old citations reduces the chance that a duplicate reappears.
A step-by-step cleanup plan
Step one, build the inventory spreadsheet described above. Step two, choose the keeper and confirm you can sign in as its owner. Step three, update the keeper so name, address, phone, site and hours are right. Step four, handle each extra profile by the matching route: merge, mark as moved, mark as closed, or report.
Step five, change the old details wherever else they appear, including directories, social profiles and your website footer. Step six, wait a couple of weeks and search again, because changes can take time to show.
Keep notes on every submission: date, link, result. If Google asks for proof, you can reply with a clean timeline. Patience matters here, since several rounds are common and a hasty report with weak evidence may simply be declined.
Special case: a past tenant
If you moved into a space once used by another company, its old listing may still appear at your address and confuse drivers. You cannot claim it, but you can mark the place as closed or moved through the suggest an edit option, and then make sure your own profile is verified and complete so searchers see the right business first. Reviews on the old listing belong to that business and will not transfer to you, so expect to start building your own again from the first customer. Photograph your signage to support any request.
Common questions
Can duplicates really hurt rankings?
They can split signals such as reviews and links across profiles and confuse customers, so cleaning them up is sensible.
What if I cannot get ownership of a duplicate?
Report it through the Maps suggest an edit tool or the business redressal process, with proof that the business is yours.
This guide is general information. Search engines change how they work and their guidelines; check Google's current documentation for your situation. Nobody can guarantee a ranking.