Domain to Company API

Turn Any Domain Into a Company Profile

LinkFinder AI's domain to company API instantly resolves any website domain into a complete company record — legal name, employee count, industry, headquarters, and LinkedIn profile. Stop guessing who owns a domain and enrich every signup, lead, and inbound email in real time.

99.9% API Uptime
SOC 2 Compliant
10M+ Companies
Real-time Updates
10M+
Domains Mapped
99.9%
API Uptime
<100ms
Response Time
95%
Match Accuracy
Code examples
Copy and paste — works in any language or automation platform.
curl -X POST 'https://api.linkfinderai.com/domain_to_company' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"domain": "stripe.com"}'
Use cases
Who uses this and why.
📝
Signup Enrichment
Extract the domain from a new user's work email and instantly attach their full company profile. Pre-fill account fields and qualify accounts the moment someone signs up.
🎯
Lead Routing
Score and route inbound leads by company size and industry the instant a form is submitted. Send enterprise domains to AEs and SMB domains to self-serve automatically.
🔍
CRM Cleanup
Resolve thousands of orphaned domains in your CRM into matched companies. Backfill missing firmographics so reps always know who they're working with.
Account Matching
Map website visitors and ad clicks back to known accounts using their domain. Power account-based marketing with reliable domain-to-company resolution.
🛡️
Fraud & Risk Checks
Validate that a domain belongs to a real, established business before approving trials or transactions. Flag throwaway and mismatched domains in real time.
🤖
Automated Workflows
Trigger downstream automations based on the company behind a domain. Build no-code flows that branch on industry, headcount, or company type.
Integrate in minutes
Works natively with the tools your team already uses.
n8n
HTTP Request node — no plugin needed
Make
HTTP module in any scenario
Zapier
Webhooks by Zapier action
REST API
Any language, any platform
View pre-built workflow templates →
Frequently asked questions
What does the domain to company API return?
Send any domain and the API returns a structured company record: legal and display name, employee count, industry, founding year, headquarters location, and the company's LinkedIn profile. A confidence score tells you how strong the match is.
Can I pass an email instead of a domain?
Yes. The API automatically extracts the domain from a work email, so you can send either a raw domain like stripe.com or a full address like [email protected]. Free webmail domains such as gmail.com are flagged as personal rather than matched to a company.
How accurate is the domain matching?
We maintain 95% match accuracy across more than 10 million indexed domains, with continuous re-verification against multiple data sources. Every response includes a confidence score so you can set your own threshold for automated decisions.
What's the rate limit for domain lookups?
Standard plans include 1000 requests per minute with burst capacity up to 2000 requests. For bulk domain enrichment, enterprise customers can request higher limits and batch endpoints tailored to their volume.
How do you handle data compliance and privacy?
We're SOC 2 compliant and follow GDPR guidelines for all data processing. Company data is sourced from publicly available information, and we provide opt-out mechanisms for individuals and companies when required.

Start Resolving Domains to Companies Today

Turn every domain into a rich company profile with one reliable API call.

Get API Key Free View API Docs