Free Reverse Email Lookup
emailperson, company, locationUpdated August 7, 2026
To find out who owns an email address, enter it above and Clu looks it up in B2B contact data. When it finds the person, you get their name, company, job title, city and country, with the phone number and LinkedIn URL shown masked. It's free for 2 lookups per IP every 30 days, and it isn't available on VPNs or hosted networks.
Looking for someone's email address? Find verified emails by name and company
Get the whole record behind every address
Clu fills in the name, title, company and phone number behind each email on your list.
The Free plan is $0 with 50 credits a month and 5 searches. Every new workspace can also try Pro free for 14 days.
- Search
- Free
- Verified work email
- 1 credit
- Phone number
- 10 credits
98% verified work emails and 85% phone numbers on our 500-lead benchmark, across 25+ providers.
A demo of Clu, our agent, doing this for a whole list. Asked: Find the verified work email for everyone in Series B sales leaders Clu runs the tools, asks for confirmation before spending credits (Find work emails for 212 leads on Series B sales leaders, 212 credits), fills the list row by row and reports: 197 verified emails on the list, 15 not found. Want phone numbers for the 197 next?
10,000+ users, from founders to full sales teams
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The Clu Chrome extension finds the verified email and phone number for the LinkedIn profile you have open, in the same tab.
Who owns this email address?
Clu's reverse email lookup identifies who owns an email address by matching it against B2B contact data. When it finds the person, you get their name, company, job title, city and country, with the phone number and LinkedIn URL shown masked. Business addresses resolve most often. It's free for 2 lookups per IP every 30 days and isn't available on VPNs or hosted networks.
How do I find out who owns an email address?
To find out who owns an email address, enter it in the Clu reverse email lookup above. It matches the address against B2B contact data and, when it finds the person, returns their name, company, job title, city and country, with the phone number and LinkedIn URL shown masked. It's free for 2 lookups per IP every 30 days and isn't available on VPNs or hosted networks.
Work addresses return the most. If nothing comes back, look at the address itself: the domain usually names the employer, and jane.doe@acme.com usually encodes the name.
How do I look up an email address?
You look up an email address by starting from the address and working outward to the company and the person. Clu does that in one step: enter the address in the tool above and it returns the name, company, job title, city and country when it finds a match. You get 2 free lookups per IP every 30 days.
If you need the full phone number and LinkedIn URL, or want to run a whole list, that's what a Clu workspace covers. Every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits).
How does a reverse email search work?
A reverse email search works by treating the address as a key and looking it up in the sources that index it. Consumer tools search public records and social platforms. Clu's free reverse email search looks the address up in B2B contact data, which is how an address becomes a name, job title, company and location.
Inside a workspace, Clu works a whole list across 25+ data providers.
Is there a free reverse email search?
Yes. The Clu reverse email search on this page is free for 2 lookups per IP every 30 days, with no account needed. It isn't available on VPNs or hosted networks. You get the name, company, job title, city and country when there's a match. The phone number and LinkedIn URL are shown masked, and they come in full inside a workspace.
Every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits). A reverse lookup there costs 2 credits, and paid plans start at $49 per seat a month.
What is the best reverse email lookup tool?
The best reverse email lookup tool depends on whether the address is a work address or a personal one. Clu is built for B2B addresses, so it returns the person's name, company, job title and location, and resolves the full contact across 25+ data providers inside a workspace. For personal addresses, consumer people-search services are the right category: Social Catfish runs reverse email, phone, and image searches and states that a paid plan may be required to open the full report, and Spokeo aggregates public records and social data by email, phone, or name.
Hunter solves the opposite problem, finding an address from a person's name plus a company domain; its free plan publishes 50 credits a month covering searches and verifications combined (hunter.io/pricing, read August 7, 2026). If your list is B2B and the record needs to land in a CRM afterwards, Clu is the fit.
Is there a reverse email lookup with no sign up?
Yes. Clu's reverse email lookup on this page runs with no sign up and no email capture: enter an address, press the button, read the result. The cap is 2 lookups per IP every 30 days, and it isn't available on VPNs or hosted networks. A lookup site that asks you to register before it will show a result is usually gating a paid report behind the form.
What signing up buys on Clu is the full phone number and LinkedIn URL, and lookups for a whole list: every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits).
What is the best free email lookup?
The best free email lookup depends on whether you are looking up a work address or a personal one. Clu fits work addresses: 2 free lookups per IP every 30 days with no account, returning the name, company, job title, city and country when there's a match. Personal addresses belong to consumer people-search services, which index public records and social data, and most of them show a teaser result and then ask for payment to open the full report.
Social Catfish states that a paid plan may be required to view the complete result. Phone numbers are a common stopping point: Clu's free lookup shows them masked, and the full number needs an account.
How do I look up someone by email?
To look up someone by email, enter the address in the free tool above. You get the name, employer, job title and location when Clu finds a match, which is usually enough to decide whether an unknown inbound sender is worth a reply. For the full LinkedIn URL and phone number, use a Clu workspace, where a reverse lookup costs 2 credits.
Every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits).
What data comes back from a reverse email lookup?
A free Clu reverse email lookup returns the person's name, company, job title, city and country when it finds a match. It also shows the phone number and LinkedIn URL in masked form, so you can see whether they exist. Any field without data says Not found. The full phone number and LinkedIn URL come from a Clu workspace, where enrichment across 25+ data providers returned 98% verified work emails and 85% phone numbers on our 500-lead benchmark.
Can I reverse search a personal Gmail address?
You can try, but expect less. Clu's reverse email lookup accepts a personal Gmail, Yahoo, Outlook, or iCloud address, but the domain belongs to the mail provider, so it says nothing about an employer. Clu is a B2B tool, and its contact data indexes professional contacts rather than consumer identities, so these addresses often come back empty.
If you are trying to identify a private individual from a personal address, a consumer people-search service such as Social Catfish is the right category to use instead.
How accurate is a reverse email lookup?
A reverse email lookup is only as good as its coverage. Whether Clu can name the person behind an address depends on whether that address appears in B2B sources, and Clu does not publish a hit rate for the free tool, because it would be different for every list. Corporate addresses at companies with a public web presence resolve far more often than personal addresses or addresses at companies with no online footprint.
Job titles and employers change too, so a returned record can be out of date. Inside a workspace, enrichment returned 98% verified work emails and 85% phone numbers on our 500-lead benchmark.
Why did my reverse email lookup return nothing?
A reverse email lookup returns nothing when the address has no match in the data behind it, and there are a few common reasons. The address may be personal rather than a work address. It may be a role account like info@, sales@, or support@, which belongs to a team rather than an individual. It may sit on a disposable provider such as mailinator or yopmail, which exists precisely so it cannot be traced back to a person.
Or the person may simply not be in the data. Also check the message you see: the free lookup stops after 2 uses per IP every 30 days and isn't available on VPNs or hosted networks. An empty result doesn't prove an address is fake, so check the mailbox with the email verifier if you need to know.
How is a reverse email lookup different from an email verifier?
A reverse email lookup answers who, and an email verifier answers whether. Clu's reverse lookup starts from an address and returns the person around it: name, company, job title and location. Clu's email verifier starts from the same address and returns a mailbox verdict from an SMTP check with catch-all detection.
Each is free for 2 uses per IP every 30 days. Most teams use both in sequence, looking the address up to decide whether the contact is worth pursuing and verifying it before anything is sent. In bulk, Clu runs both on an uploaded CSV in one pass, so each row comes back enriched and verified together instead of in two separate jobs.
Is reverse email lookup legal?
Generally yes for business addresses. Clu's tool matches an address against B2B contact data, and it doesn't access the person's inbox or social accounts. What is regulated most closely is what you do next. Outreach based on the result must comply with CAN-SPAM in the US, CASL in Canada, and GDPR in the EU, which generally permit B2B outreach to a business address with a lawful basis, accurate sender identification, and a working opt-out.
Using lookup results to contact or profile a private individual is a different legal question, and this tool is not built for that.
Is a reverse email lookup the same as a background check?
No, and Clu does not run background checks. A reverse email lookup identifies the professional context around a work address: the person's name, employer, job title and location. A background check reports on a person's criminal, credit, or court history and is regulated in the US under the Fair Credit Reporting Act, which requires a permissible purpose and a consumer reporting agency.
Clu is neither, and its data must not be used for credit, employment, housing, or insurance decisions. If you are vetting a stranger from a dating app or a marketplace, a lookup built for B2B sales is the wrong instrument for that job.
Can I run a reverse email lookup on a whole list?
Yes. The free tool on this page handles one address at a time, at 2 per IP every 30 days. For a list, every new Clu workspace starts with 14 days of Pro (up to 3 seats, 250 credits), and every row is matched across 25+ data providers, returning name, job title, company, LinkedIn URL, and phone number for each address that resolves.
The Free plan is 50 credits a month after that. A reverse lookup costs 2 credits. Starter is $49 per seat a month with 750 credits per seat, and Pro is $89 per seat with 1,500 credits per seat. Neither has a seat minimum, and annual billing takes 25% off. Results export to CSV, and HubSpot and Salesforce sync starts on Pro.
See People Search and waterfall enrichment for the bulk workflow.
How much does a reverse email lookup cost?
On this page a reverse email lookup is free for 2 lookups per IP every 30 days. Beyond that, lookups run inside a Clu workspace, and every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits), then drops to the $0 Free plan at 50 credits a month. A reverse lookup costs 2 credits, and running a search costs zero credits.
Starter is $49 per seat a month with 750 credits per seat, and Pro is $89 per seat with 1,500 credits per seat. Neither has a seat minimum, and annual billing takes 25% off. If you look up a handful of addresses a month, the Free plan covers it and you never need a paid plan.
Can I find someone's social media profiles from their email address?
Clu's free reverse email lookup shows a LinkedIn URL in masked form when it finds one, and the full URL comes with a workspace. It doesn't return other social accounts. Tools that reach further work by probing signup and password-reset flows on consumer platforms: the open-source holehe checks whether an address is registered on more than 120 sites and its README states that it "Does not alert the target email." Clu does not run those probes.
For B2B work the social identifier that matters is the LinkedIn URL.
What is an OSINT reverse email lookup?
An OSINT reverse email lookup pivots from an email address to a person using open sources only, with no private database behind it. Clu's tool on this page is a different kind of lookup, because it uses B2B contact data. Dedicated OSINT tooling goes wide across consumer platforms. Epieos searches "over 140 websites and social networks" from an email address and can surface a username, location and profile creation date, per its listing on the Maltego Transform Hub (read August 7, 2026).
The practical split for a sales team: OSINT is built to identify a stranger, and a B2B contact database is built to reach a named buyer at work. Clu does the second job, so it resolves a work address into a verified email, title and phone number rather than into a consumer footprint.
How do I find an email address for a person?
To find an email address for a person you need two inputs, their name and their employer, and then a contact lookup. Patterns alone won't do it: you can guess at first.last@ and flast@ by hand, as the email permutator page explains, but usually only one guess is a live mailbox and bounces are what damage sender reputation.
If you have a LinkedIn profile, the LinkedIn email finder looks up the email from the URL, free for 2 lookups per IP every 30 days. Check any address you're unsure of with the email verifier before you send. To skip the guessing, a Clu workspace matches a name and company across a 25+ provider waterfall and returns the verified address at one credit each, and the email format finder page shows how.
Every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits).
The toolFree Reverse Email LookupRunsLive lookupFree quota2 / 30 daysTakesemailReturnsperson, company, location
How does this tool work?
A reverse email lookup takes an email address you already have and returns who is behind it. Clu matches the address against B2B contact data and, when it finds the person, returns their name, company, job title, city and country. The phone number and LinkedIn URL are shown masked, and you can see both in full inside Clu.
It's free for 2 lookups per IP every 30 days, and it isn't available on VPNs or hosted networks.
What this tool does not do matters as much. Clu built it for business and professional addresses, so it is neither a people-finder for personal accounts nor a background check. Not every address has a match, so an empty result is normal. Once you know who an address belongs to, the email verifier checks that the mailbox is real before you send.
Who uses the Free Reverse Email Lookup?
The people who run it most, and what each one runs it for.
- Sales teamsCatch a dead address before a rep spends time writing to it.
- MarketersClean a list before the campaign goes out, so bounces don't hit the sending domain.
- RecruitersConfirm a candidate's contact details are real before you reach out.
- FoundersCheck an address before you email an investor, partner or buyer.
- RevOpsKeep CRM records accurate so routing, scoring and reports hold up.
- AgenciesCheck client data before it goes into a live campaign.
See reverse email lookup in Clu
Watch Clu take a single email address, find the real person behind it, and enrich the full contact with a verified name, title, company and phone number in seconds.
One email in, a verified and enriched contact out, ready to push to your CRM
Describe the job once. An agent runs it every week.
Clu turns one sentence into an agent. It searches 1B+ profiles, finds verified emails and phone numbers across 25+ providers, adds the people to your sequence and posts each run to Slack.
Weekly ICP outbound
Built by Clu from: “Every week, find 500 new people who match my ICP, get their emails and phones, and add them to Series B outbound.”
- Searched 1B+ profiles for new ICP matches500 foundPeople Search
- Ran the waterfall across 25+ providers487 emails · 412 phonesWaterfall
- Verified every email and phoneSMTP + catch-allVerification
- Added them to Series B outbound500 peopleSequences
- Posted the run to #pipelineSlackAgents
Friday 4:52 PM15 replies · 5 calls booked
Everything in the 14-day Pro trial
- Clu and agentsDescribe the job in one sentence. Clu builds the agent, runs it on a schedule or a CRM trigger and posts every run to Slack.
- People and Company SearchFind your buyers in 1B+ profiles from one sentence. Searching costs 0 credits.
- Waterfall enrichmentAsk 25+ providers in order and stop at the first verified email or phone number. 98% verified work emails and 85% phone numbers on a 500-lead benchmark.
- Email verificationRun SMTP and catch-all checks on every address before it reaches a sequence, at half a credit an email.
- ICP scoringScore every lead 0 to 100 against your ICP, with the reasons written down. The Research and Qualification skills do the digging.
- SequencesSend email from your reps' own inboxes, with call tasks. A reply stops the sequence. Sending costs 0 credits.
- CRM syncTwo-way sync with HubSpot, Salesforce and Pipedrive. Push finished lists to Outreach, Salesloft and Lemlist.
- Chrome extensionGet a verified email and phone number in one click on LinkedIn, Sales Navigator, Salesforce and HubSpot.
- MCP and APIRun the same search and waterfall from Claude or ChatGPT with 36 MCP tools, or from your own code with the REST API.
Agents that run this job
- Qualify inbound leadsResearches each new inbound lead, scores it 0 to 100 against your ICP and posts who to call first.
- Account briefsWrites a short, sourced brief on each new target account every Monday and sends it to the account owner.
- Route inbound to ownersMatches each new inbound lead to its account and gives it to the account owner, with a Slack DM.
14 days of Pro, free: 250 credits, 3 seats, agents, Sequences and Clu in Slack. Then Free at 50 credits a month, or Starter at $49 and Pro at $89 a seat a month.
Which free email lookup tools work together?
Start from whatever you have (a name, a domain, an email or a block of text) and chain the tools until you have a verified contact.
- Email Findername + companyverified emailStart from a name and a company and get the verified work email, inside Clu.
- Email Verifieremailmailbox statusCheck whether a mailbox is real before you send, with SMTP and catch-all detection. 2 free checks per IP every 30 days.
- Email ExtractorURL or textevery email on itEnter a website URL or paste text and pull out every email address on it, deduped.
- Email Format Findername + companyverified emailGet the verified address behind the pattern, inside Clu.
- Email PermutatorWhy guessing address formats backfires, and how to get the one verified email instead.
- B2B Contact Findername + companyverified emailFind verified work emails by name and company, inside Clu.
- LinkedIn Email Finderprofile URLemail, title, companyPaste a LinkedIn profile URL to get the email, name, company and title. 2 free lookups per IP every 30 days.
Which paid tool does this for a whole database?
We compared the platforms that do this job for a whole database, Clu included, and say where each one falls short.
- Best data enrichment toolsThe enrichment platforms side by side: coverage, credit costs and what each one verifies.
- Best B2B contact database softwareContact databases compared on accuracy, refresh rate and price once your team uses them every day.
- Best Apollo alternativesWhat teams switch to when Apollo's credits, seat pricing or phone coverage stop fitting, with current prices.
Frequently asked questions
Short answers about the Free Reverse Email Lookup: what it checks, what it costs and where it stops.
All free toolsWhat is an email address lookup?
An email address lookup (also called an email lookup) is the reverse of finding someone's email: you start with the address and identify who it belongs to. Clu's lookup returns the name, company, job title, city and country when the address matches a person in its B2B contact data, with the phone number and LinkedIn URL shown masked. It's free for 2 lookups per IP every 30 days. The full phone number and LinkedIn URL, and lookups for a whole list, come with a Clu workspace.
Can I find someone's name from just their email address?
Often, if it's a work address. Enter it in the lookup above and Clu returns the name, company and job title when it finds a match. If nothing comes back, the address has no match in the data behind the tool, which is common for personal accounts. A corporate address like first.last@company.com also usually contains the name, and a search of public LinkedIn profiles for that name plus the company can confirm it.
Does a reverse email lookup notify the person I looked up?
No. Clu's reverse email lookup sends no mail to the address and triggers no notification of any kind. It matches the address against B2B contact data, which never touches the person's mailbox.
Can I use reverse email lookup results for cold outreach?
Yes for B2B outreach, within the rules that already govern your sending. A lookup result tells you who a business address belongs to; it does not grant permission to email them. Outreach must still comply with CAN-SPAM in the US, CASL in Canada, and GDPR in the EU, which generally permit B2B outreach to a work address with a lawful basis, accurate sender identification, and a working opt-out. Verify the address before you send, since a stale address costs you sender reputation on the bounce.
Can I find someone's email address from their phone number?
No. Clu does not run phone-to-email reverse lookup, and the free tool on this page only works in the other direction, from an address outward. Phone-to-identity matching is a consumer people-search product built on public records and telecom directories, which is a different data category and a different regulatory footing from B2B contact data. What Clu does with phone numbers is the reverse: give it a name and company and it returns a phone number alongside the verified email, at 10 credits for a phone and 11 for a full contact record. If all you hold is a phone number and nothing else, there is no Clu path from there to an email address.
Is there a free reverse email lookup app to install?
Clu has no app to install, and none is needed, because this page runs in any mobile or desktop browser, free for 2 lookups per IP every 30 days. A native app would add nothing, since the lookup runs on our servers and a phone browser shows the result just as well. Clu does ship a Chrome extension, which does a different job, pulling contacts while you browse LinkedIn and Sales Navigator rather than resolving an address you already hold. For repeat work a CSV beats any app: every new workspace starts with 14 days of Pro (up to 3 seats, 250 credits), and every row that resolves comes back with name, job title, company, LinkedIn URL and phone number.
Do free reverse email lookup sites actually work?
Some do, within limits, and it helps to know what you're looking at. Clu's free lookup gives you the name, company, job title, city and country when it finds a match, and shows the phone number and LinkedIn URL masked, with both in full inside a workspace. You get 2 lookups per IP every 30 days. The pattern worth recognising elsewhere is a result page that displays a censored name beside an "unlock report" button, which is a paid consumer background-search product wearing a free label. Personal addresses are the weak spot for any B2B tool, so an empty result there is normal.
Why do two reverse email lookup tools return different results for the same address?
Different tools query different sources, so they disagree by design. Clu matches the address against B2B contact data, which means it is strong on the employer and weak on consumer footprints. An OSINT tool that probes password-reset flows across consumer platforms is strong on where an address is registered and returns nothing about the company. A paid consumer people-search service reads public records, which cover private individuals rather than employees. None of them is wrong. Before you trust a result, check which sources produced it and how recent it is.
Now run it on the whole list.
Upload the CSV or describe the list you want. Clu finds, verifies and qualifies every row.
14 days of Pro, free.
