Reverse Email Lookup

Reverse Email Lookup API

Resolve any email address to a full company profile and person data — instantly, via a simple API call.

GET /emails/lookup?email=jensen@nvidia.com
{
  "person": {
    "name": "Jensen Huang",
    "title": "Founder and CEO",
    "prof_network_url": "in/jenhsunhuang"
  },
  "company": {
    "name": "NVIDIA",
    "domain": "nvidia.com",
    "industry": "Semiconductors",
    "employees": "over-10K",
    "revenue": "over-1b",
    "location": { "country": "United States", ... },
    // ...50+ more fields
  }
}
Jensen Huang

Jensen Huang

Founder and CEO

NVIDIA

NVIDIA

nvidia.com

Matched

Resolved from: jensen@nvidia.com

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Instant Resolution

Email to Person, Instantly

Resolve any email to a full person and company profile in real time — name, title, professional network, and 60+ company data points.

|

Any email → person + company profile

Person + Company Data

Rich, Detailed Profiles

Every email lookup returns the person behind the email — name, job title, professional network profile — alongside a full company profile with 60+ data points.

person.name | Jensen Huang
person.title | Founder and CEO
person.prof_network_url | /in/jenhsunhuang
company.name | NVIDIA
company.domain | nvidia.com
company.industry | Semiconductors
company.employees | over-10K
company.revenue | over-1b
company.description | NVIDIA is a global technology...
company.categories | semiconductors, ai
company.technologies | CUDA, TensorRT, C++...
location.country | United States (US)
founded_year | 1993
financial.total_funding | 9,500,000,000
financial.funding_stage | series_i
socials.prof_network_url | https://...
socials.twitter_url | twitter.com/nvidia

How you can use Reverse Email Lookup API

Turn email addresses into actionable company and person intelligence.

CRM Enrichment

Auto-Enrich Leads from Email

Automatically enrich every inbound lead in your CRM with full company and person data the moment they sign up or submit a form.

Lead Routing

Route Inbound Leads Instantly

Use company data from email lookups to automatically route leads to the right sales team based on company size, industry, or location.

Build & Integrate

Power Your App with Email Intelligence

Integrate our API to add email-to-company resolution to your platform — enrich user profiles, power onboarding flows, or build email tools.

Fraud Detection

Identify Company Associations

Verify email authenticity by resolving company associations and flagging suspicious or unrecognized domains in real time.

Account-Based Marketing

Map Emails to Target Accounts

Instantly identify which target accounts your email contacts belong to and personalize campaigns with enriched company data.

Try yourself now

Enter an email address to see the company and person data we return.

Reverse Email Lookup API FAQs

What is the Reverse Email Lookup API?
The Reverse Email Lookup API resolves any email address to the company and person behind it. Given an email, it returns a full enriched company profile with 60+ data points along with person information including name, job title, and professional network profile.
What data does the API return?
The API returns two main objects: person data (name, job title, professional network URL) and a full company profile including domain, industry, employee count, revenue, location, funding, tech stack, NAICS codes, social profiles, and 50+ additional data points.
Does it work with personal email addresses (Gmail, Yahoo)?
The API is optimized for professional/work email addresses with custom domains. For free email providers like Gmail or Yahoo, the API may still return person data when available, but company resolution is not applicable for these domains.
How accurate is the email-to-company matching?
Our matching is highly accurate. We resolve email domains against our database of 30M+ companies, handling edge cases like subsidiary domains, shared hosting, and domain aliases. The company data returned is continuously refreshed to ensure accuracy.
Do I get charged if no match is found?
No. You are only charged credits when the API successfully returns data. If the email cannot be resolved to a company or person, no credits are deducted from your account.
How much does the Reverse Email Lookup API cost?
Pricing is based on our credit system, where each API call has its own credit usage. For the most current and detailed information on credit costs and monthly plans, please visit our pricing page.
Can I use it for bulk email lookups?
Yes. You can look up emails in bulk by making batch requests via the API. This makes it easy to enrich large lists of email addresses at scale, such as importing CRM contact lists or processing signup data.
What are the rate limits?
Our standard rate limit is 300 requests per minute to ensure stable performance for all users. If you have a high-volume use case and require a higher limit, please contact our support team to discuss enterprise options.

Tell us what you're building

Every integration is unique. Whether you're enriching CRM data, powering AI agents, or automating lead generation — we'll show you exactly how our API fits.

Technical questions?

Our engineers will join the call.

Pricing concerns?

We'll design a plan that scales with you.

Integration help?

Walk away with working code samples.

Amirali, Co-Founder Amirali, Co-Founder
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Ekin, Co-Founder & CTO Ekin, Co-Founder & CTO
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