Overview
Reverse Email Lookup transforms any email address into a complete person and company profile — available directly in the FullEnrich app, or via the API.
It allows you to input an email address and retrieve the B2B profile behind it, including both personal and company-level information.
Reverse Email Lookup works with both professional and personal email addresses (Gmail, Outlook, GitHub, and more).
What you get
Person data
First name
Last name
Job title
Seniority
Department
Location
Professional social profile
Company data
Company name
Company domain
Company size
Industry
Headquarters location
Headcount
Company social profile
How it Works
Input
To perform a Reverse Email Lookup, simply provide an email address (personal or professional).
Credit Cost
1 credit is consumed per successful Reverse Email Lookup
No credits are consumed if no results are found
Credit cost is the same regardless of how many fields are returned
Using the UI
Go to Reverse Email Lookup in the top navigation
Click + New Lookup
Enter the email address you want to look up
View the full contact and company profile once it's found
Your past lookups are saved under My Lookups, or you can browse your team's lookups under All Lookups.
Using the API
The API process is asynchronous and happens in two steps.
1. Start the lookup
Make a POST request to initiate the enrichment:
POST https://app.fullenrich.com/api/v2/contact/reverse/email/bulk
Include your
Authorizationheader with a Bearer tokenAdd a
namefor the lookup (required, visible in your dashboard)Add the email address(es) in the
datafield(Optional) Provide a
webhook_urlto be notified when the lookup is finished
The response will return an enrichment_id.
Processing typically takes 5–10 seconds.
2. Retrieve the results
Use the returned ID to fetch the enrichment results:
GET https://app.fullenrich.com/api/v2/contact/reverse/email/bulk/{enrichment_id}When the status is FINISHED, the lookup is complete and results are available.
For detailed implementation guidance, see the Reverse Email Lookup API Documentation.
Key Details
Cost: 1 credit per successful match
Match rate: Varies depending on region and email type
Processing time: 5–10 seconds on average via the API; near-instant in the UI
Data sources: Emails are searched across multiple data providers and contact databases
Best Practices & Important Notes
When using the API, use a webhook to receive results once the lookup is complete rather than repeatedly checking for results.
Reverse lookup from a phone number to an identity is not supported.
Data availability and match rates can vary depending on the region, email type, and available source coverage.
Once a contact is identified, enrich the contact to retrieve additional contact information, such as their email or mobile phone number.
Need Help?
If you have questions about Reverse Email Lookup, contact our support team at [email protected] or via the in-app chat.