Find Company Name & Website from Email: 4 Methods (2026, Tested)

Last updated: 2026-05-03 · Tested by Derrick on 1,000 EU + US work emails.

Reverse email lookup is the process of starting from a work email address (e.g. jane@acme.com) and returning the company that owns the domain, plus optional contact attributes: full name, job title, LinkedIn URL, phone number, and the company's website. It's the inverse of an email finder - instead of email out, you get attributes back.

The use case is straightforward: an SDR receives an inbound reply from an unknown sender, a recruiter exports a Gmail thread, a marketer imports a webinar attendee list. Each row has an email but no company context. According to the Salesforce State of Sales 2025, sales reps spend 27% of their time researching prospect data - most of which starts with an email and ends with a manually-built company profile.

What reverse email lookup is and why it matters

Reverse email lookup is the bridge between a raw contact list and a list you can actually sell to or hire from. An email on its own is just a routing address. The company behind it - its name, size, industry, and website - is what tells you whether the contact is in your ICP, which playbook to run, and how to personalize the first message. Teams that skip this step end up either ignoring good leads or burning them with generic outreach.

The cost of doing it by hand adds up fast. At 27% of a rep's week spent on research (Salesforce, 2025), a single SDR working a 500-row inbound list can lose a full day copy-pasting domains into Google. Reverse lookup collapses that into one column in a spreadsheet, which is why it has become a standard step in modern lead email finder workflows.

The 4 methods to find a company from an email in 2026

Each method makes a different trade-off between coverage, accuracy, and cost. Pick based on volume: 1-10 emails/day → free WHOIS or browser tools; 100-1000/month → native Sheets enrichment; 10K+/month → paid B2B database with API.

Method 1 - WHOIS + email-domain trick (free, partial)

Strip the domain from the email (everything after the @), then look it up in WHOIS at lookup.icann.org or whois.com. You'll get the registrant's organization name, registration country, and sometimes a tech contact - that's the company name and the website (the domain itself, prefixed with https://www.).

Coverage: ~60% of B2B domains return a usable company name in WHOIS. The other 40% are masked behind GDPR/CCPA privacy services (e.g. "REDACTED FOR PRIVACY") since the 2018 GDPR ICANN rule change. Free webmail domains (gmail.com, outlook.com, yahoo.com, hotmail.com) return zero useful data - the registrant is Google or Microsoft, not the person's employer.

Method 2 - Online reverse email lookup tools

Single-search reverse email tools (Hunter.io's free tier, BeenVerified, Spokeo) take an email and return a contact card: full name, employer, job title, LinkedIn URL, sometimes phone. Pricing typically ranges $0.05 to $0.50 per lookup outside the free tier.

Strengths: handles personal emails (Gmail, Outlook) better than WHOIS - these tools cross-match against social-network databases and breach data. Weaknesses: per-lookup pricing scales poorly above 100 leads; most tools don't expose Google Sheets integrations natively (you'll export CSVs and re-import).

Method 3 - Native enrichment in Google Sheets (Derrick)

Derrick is a Google Sheets add-on used by 31,000+ B2B teams. Paste emails into a column, run the EMAIL_TO_COMPANY function, and the next 4-7 columns auto-fill with: company name, official website, LinkedIn company URL, employee count, industry, and (with a different function) the contact's full name, job title, and verified phone.

Why it wins for the spreadsheet workflow: no CSV export/re-import, no quitting your sheet, no per-lookup credit-card friction. The free plan grants 100 credits/month (enough for a typical 50-100-lead test) with no expiration on rolled-over paid credits. Average match rate observed across 1,000 EU + US work emails: 82% on company name, 76% on LinkedIn URL, 69% on direct phone.

Method 4 - Paid B2B databases with batch API

Apollo, ZoomInfo, Cognism, and Clearbit all offer reverse-email APIs in their paid plans. The trade-off: highest accuracy on US enterprise (90%+ match), weakest on European SMB (40-50% per ZoomInfo State of Sales Data 2025). Pricing starts at $5K-$20K/year minimum for batch API access. Best fit for sales orgs with dedicated RevOps and 50K+ enrichments/month.

Step-by-step: the manual reverse lookup (no tools)

Before reaching for software, it helps to know the manual path - it's free, it works for a handful of emails, and it shows you exactly what a tool automates. Here is the full sequence for a single work email.

Step 1 - Extract the domain

Everything after the @ is the domain. From jane.doe@acme.com you get acme.com. That domain is your strongest signal: in most B2B cases it is the company's own website and the root of its brand name.

Step 2 - Open the domain directly

Type https://www.acme.com into a browser. If a real company site loads, the page title, footer, and "About" link usually confirm the legal company name and what they do. If you hit a parking page or a 404, the domain may be an alias or a defunct company - move to Step 5.

Step 3 - Search the domain on LinkedIn

Paste the domain into LinkedIn's search bar. LinkedIn matches company pages to their website domain, so acme.com surfaces the official Acme company page with headcount, industry, and HQ location. This is the fastest way to get the structured firmographics WHOIS won't give you.

Step 4 - Run the email through Google

Search the full email in quotes ("jane.doe@acme.com"). For people who publish their address - founders, recruiters, support leads - this pulls up a personal profile, a press mention, or a directory listing that confirms both the company and the job title.

Step 5 - Check business and WHOIS registries

If the domain is masked or the site is down, fall back to public registries: WHOIS for the domain registrant, plus a national business register (Companies House in the UK, INSEE/SIRENE in France, OpenCorporates worldwide). These confirm the legal entity behind a domain even when the website gives nothing away.

Why the manual method breaks down

Each step takes 30-90 seconds when it works, and it fails silently on personal domains, masked WHOIS records, and stale emails. At 5 emails it's fine. At 200 it's a lost afternoon with an error-prone result. That volume cliff is exactly where automated enrichment earns its place - which is the next section.

When to pick which method

SDRs prospecting from inbound replies

You receive 5-50 inbound emails/week from unknown senders. Speed matters more than batch volume. Use Derrick's EMAIL_TO_COMPANY + EMAIL_TO_FULLNAME functions in a Google Sheet linked to your inbound log; the row enriches before you finish reading the original email.

Recruiters processing applicant lists

You import 200-2000 candidate emails from job-board exports or LinkedIn Sales Navigator. You need company name + LinkedIn URL + current job title to score the shortlist. Derrick batch-enriches in the same Sheet as your applicant tracker; no CSV round-trips, no duplicate spreadsheets.

Marketers cleaning a webinar list

Post-event, you have 500-5000 attendee emails. You want to filter to ICP fit (industry, employee count, country) before passing the list to sales. Derrick adds those columns next to the email column; filter the sheet, share with sales.

Common mistakes when finding a company from an email

The lookup itself is simple. The errors that wreck a list come from skipping the checks around it.

• Not validating the email first. Enriching a bad address wastes the lookup and pollutes your list. Verify deliverability before you enrich - a quick pass with a bounce email checker removes dead rows up front.
• Assuming the domain tells the whole story. Holding companies, agencies, and subsidiaries often share one domain across several brands. The domain gives you the entity; firmographics (industry, size) still need a second source.
• Ignoring data freshness. People change jobs every 2-3 years. A company name pulled from a two-year-old record may point to an employer the contact already left. Treat job title and employer as time-sensitive fields.
• Over-trusting automation with zero spot-checks. Even an 82% match rate means roughly 1 in 5 rows needs a human glance. Sample 10-20 enriched rows before you act on the full list.
• Treating enrichment as a one-and-done. Company data decays. For lists you reuse - a CRM, an evergreen webinar funnel - re-enrich on a schedule instead of trusting last quarter's snapshot.

Compliance and privacy: GDPR, CCPA, and B2B email lookup

Reverse-enriching B2B work emails is legal in most markets, but the basis matters. Under GDPR, processing business contact data for B2B sales generally falls under "legitimate interest" (Article 6.1.f, Recital 47) - provided you enrich only professional data, document the purpose, and give recipients a clear opt-out in your first message. In France, the CNIL allows B2B cold email to professional addresses when the content relates to the person's job, with an unsubscribe link from the first send. Under CCPA, B2B contact data has its own carve-outs but you must honor deletion requests.

Practical rule: enrich work emails, not personal profiles; keep enrichment to firmographic and professional fields; and never store data you can't justify a business reason for. Tools that source from public company records and opt-in databases keep you on the right side of this line.

Troubleshooting: when you can't find a company name

The email uses a personal domain (Gmail, Yahoo, Outlook)

The domain is useless here, so the only path is a reverse-enrichment tool that cross-matches the address against social and B2B databases. Match rates drop to ~30-40% on personal domains, so set expectations and keep a manual-research fallback for high-value rows.

The domain was registered very recently

New domains often have empty WHOIS records and no LinkedIn page yet. Wait for indexing, or check the company's funding announcements and press coverage, where early-stage startups surface before their data providers catch up.

It's a freelancer or consultant email

Solo operators frequently use a personal-brand domain or a Gmail address with no company entity behind it. In that case "the company" is the individual - capture the person's name and LinkedIn instead of forcing a corporate match.

The email is stale (the person changed jobs)

A bounced or outdated address often signals a job change. Re-run a real-time email verification to confirm status, then re-find the person at their new company rather than enriching the old domain.

FAQ - reverse email lookup

Can you find a company website from a Gmail address?

Sometimes. The Gmail domain itself (gmail.com) tells you nothing about the employer. To find their company website you need a reverse-tool that cross-matches the email against social-network databases - Derrick, Hunter.io, Apollo. Match rate on personal Gmail addresses is ~30-40% (vs. 80%+ on work emails). For freelancers and consultants who only use Gmail, the match falls further.

Is reverse email lookup GDPR-compliant?

Reverse-email enrichment of B2B work emails is permitted under GDPR's "legitimate interest" basis (Recital 47, Article 6.1.f) when used for B2B sales context. Derrick's data sources are publicly available company records + opt-in databases; the enriched data does not include consumer profiles. For EU prospecting, always pair enrichment with a clear opt-out path in your first email.

How accurate is reverse email lookup in 2026?

Match rate depends on the email's source domain. Internal Derrick benchmark on 1,000 work emails (50% EU, 50% US) found: 82% match on company name, 76% on LinkedIn company URL, 69% on direct dial phone. ZoomInfo's State of Sales Data 2025 reports US enterprise match rates at 90%+ and European SMB at 45-50% across the industry.

Can I extract job title from an email address alone?

Yes - but only when the email maps to a real person whose LinkedIn or B2B-database record contains the job title. Derrick's EMAIL_TO_JOBTITLE function returns the most recent role on file (job title + seniority + department). Match rate ~64% on work emails. You won't get a job title from a generic email like info@ or sales@.

What if the company website doesn't exist in WHOIS?

Since the 2018 GDPR ICANN rule change, ~40% of WHOIS records are masked. The fallback is the email's own domain - strip everything before the @, prefix https://www., and try opening it. If the domain resolves, that's the company website. If it doesn't, the email may belong to an alias domain (a parking page, a defunct company, or a typo) - in which case enrichment via Derrick or a paid B2B database is the next step.

Can I do this in bulk for 1,000+ emails?

Yes. Derrick batch-enriches thousands of emails from a single sheet on its paid plans (the free plan grants 100 credits/month to test first). Paste emails into column A, run the function in column B, wait - Derrick processes the column and writes results back to the sheet. For very large recurring volumes, the dedicated B2B-database APIs (Apollo, ZoomInfo, Cognism) are the volume tier.