# When a customer's company rebrands or changes its domain > When a customer rebrands, new contacts arrive under a new name and domain, and the CRM creates a second company. How to spot rebrand duplicates and merge them. - URL: https://dedupe.ly/blog/duplicates/company-rebrand-domain-change-duplicates - Section: blog - Published: 2026-11-13 - Site index: https://dedupe.ly/llms.txt - Any page: append `.md` to its URL for this plain-text form --- Skip to content [New Dedupely Intelligence Now on every paid plan, monthly or yearly.](https://dedupe.ly/ai-deduplication) [Blog](https://dedupe.ly/blog) [Duplicates](https://dedupe.ly/blog/duplicates) ## When a customer's company rebrands or changes its domain By [Gaby Salinas](https://www.linkedin.com/in/gbyslns) Updated November 13, 2026 # min read TL;DR - When a customer rebrands, its name, website and email domain can all change at once. - New contacts arrive with the new domain, and the CRM creates a second company next to the old one. - Domain and name matching both miss the pair, because neither value matches. - Find them through what didn't change: phone, address, people or a customer ID. - In Dedupely, you can match companies on any synced field and choose which name and domain survive the merge. A customer announces a new name. A few weeks later, contacts start writing from a new domain, and new contacts are created under a new company record. Now the customer exists twice: the old company with years of history and deals, and the new one with this month's contacts. Rebrands are one of the few cases where a duplicate has nothing obvious in common. This post covers how to find these pairs and what to keep when you merge them. ### Why rebrand duplicates are hard to find Most company matching uses the name or the website domain. A rebrand often changes both: | Field | Before | After | | --- | --- | --- | | Company name | Brightline Analytics | Lumen Data | | Website | brightline.io | lumendata.com | | Contact emails | anna@brightline.io | anna@lumendata.com | Neither a name match nor a domain match pairs these records. A rep who doesn't know about the rebrand sees two different companies. ### Where the duplicate comes from - **Contacts with the new email domain** get linked to a new company automatically, based on that domain. - **Forms and sign-ups** under the new name create a new company. - **Reps** create the new company by hand when a known contact writes from a new address. - **Enrichment tools** update one record and not the other. ### Find them through what didn't change A rebrand changes the brand, not the business. Look for fields that stayed the same: - **Phone number:** the main line often survives a rebrand. - **Address:** same office, new sign. - **People:** the same contacts, by name, now with new emails. - **IDs from other systems:** a billing, ERP or tax ID doesn't change with the brand. - **Notes or the website:** many companies keep "formerly Brightline" on their site for a while. Example Say a team matches companies on main phone number and finds "Brightline Analytics" and "Lumen Data" with the same number and address. The old record has five years of deals; the new one has three contacts created last month. They merge into one company, keep the old record so its history stays put, and keep the new name and domain. ### What to keep when you merge | Field | Usually keep | | --- | --- | | Company name | The new name | | Website and domain | The new domain | | Old name and domain | In a "former name" field or a note, so searches still find it | | Created date and history | From the older record | | Owner | The current account owner | Keeping the old name somewhere matters. People will still search for it for months. ### Fix the contacts too After the companies merge, the contacts are on one company, but some have the old email and some the new. If the same person exists twice, once with each email, they're a duplicate too. Match them on name within the merged company, and keep the new email as the main one. Pro tip When a customer tells you about a rebrand, update the company record before new contacts arrive. Change the name and domain, and keep the old ones in a separate field. New contacts then link to the right company from day one. ### How Dedupely helps with rebrands In Dedupely, you can match companies on any synced field, such as phone, address or a custom ID field, so rebrand pairs show up even when the name and domain don't match. You can review the sets before merging and reject pairs that aren't the same business. The Primary Record setting decides which record survives, for example Oldest Record to keep the original history, and Merge Rules decide which name and domain win. For a single set, Custom Merge lets you type the right name by hand before merging. [Find renamed customers](https://v2.app.dedupe.ly/signup) ### Match on what stayed the same A rebrand duplicate shares no name and no domain with its original. Match on phone, address, people or an outside ID instead, keep the new name and domain and the old history, and record the old name so people can still find the company. ### Frequently asked questions #### How do I handle a company that changed its name or domain in my CRM? Update the existing company with the new name and domain, keep the old ones in a separate field, and merge any second company record created after the rebrand. #### Why didn't my duplicate search find the rebranded company? The name and the domain both changed, so a search on either field sees two different companies. Match on phone, address or an ID instead. #### Which name should the merged company keep? The new name, with the old one stored in a separate field or note. #### Which record should survive the merge? Usually the older one, so its history and created date stay in place. #### What about contacts with old and new email addresses? If the same person has two records, one with each email, merge them and keep the new email as the main one. Behind the article ### Gaby Salinas Marketing Assistant at Dedupely Gaby Salinas came to CRM data from marketing and advertising, so she looks at duplicates from two sides: the match and merge logic behind them, and what they do to the people using the CRM, like the rep who calls a customer twice, the admin who gets blamed and the cleanup nobody wants to start. As Marketing Assistant at Dedupely, she follows how RevOps teams, end users, consultants and technical teams actually work with their data: the records they stop trusting, the workarounds they build and the moment they finally decide to clean up. What she finds shapes most of what Dedupely publishes. [Connect with Gaby on LinkedIn](https://www.linkedin.com/in/gbyslns) ### Contact us We’d be happy to help you get this set up. #### Write us a message We probably know the answer to your question already help@dedupe.ly Email copied to your clipboard! [Book a Zoom Whether you’re getting started or getting intense. Get in touch! Book a zoom](https://meetings.dedupe.ly/meetings/gaby-salinas/dedupely-zoom-scheduler) ### Discover Related Blog Posts Stay updated with our latest articles and insights. - [CRM Organization When a contact changes jobs, is it a duplicate? When a contact changes jobs, merging the old and new records keeps the context. Account-based and person-based teams differ in which values win. Gaby Salinas October 19, 2026](https://dedupe.ly/blog/crm-organization/contact-job-change-duplicates) - [Duplicates How to find duplicate companies by domain Two company records with the same core domain are often duplicates. Compare clean domains, follow contacts' emails and filter out gmail.com. Gaby Salinas October 26, 2026](https://dedupe.ly/blog/duplicates/find-duplicates-by-company-domain) - [CRM Organization How to keep global accounts straight in your CRM Global accounts start with a business decision: are regional offices independent customers or one global company? Then match, merge or keep them apart. Gaby Salinas October 29, 2026](https://dedupe.ly/blog/crm-organization/global-accounts-regional-offices-subsidiaries) ### Get started for free 20 free trial merges and as much free support as you need to get your duplicates under control. [Try for free](https://v2.app.dedupe.ly/signup)[Talk to sales](https://meetings.dedupe.ly/meetings/gaby-salinas/talk-to-sales) [Or sign up with Google](https://v2.app.dedupe.ly/signup/google) Running CRM cleanup for clients? [See the Partner Program](https://dedupe.ly/become-a-partner)