APIs & SDKs
The Companies API
Search and enrich millions of companies with 300+ data points via API
- 0community votes
- 50DR by Ahrefs −1 (down) since last check
Ahrefs Domain Rating listed 6 Nov 2026, relisted 5 Nov 2026.
An API platform that enriches company data by domain, email, or social URL, and searches through 50M+ companies using 300+ data points and AI-powered queries.
What it is
The Companies API: the homepage
The Companies API is a company data enrichment and search platform that helps businesses turn domain names into detailed company profiles. It provides access to a database of 50M+ companies with 300+ data points per company.
The platform offers multiple ways to enrich company data: by domain name, email address, or social network URL. Users can search companies by criteria, name, natural language prompts, or find similar businesses. The API includes AI features that let users ask questions about companies or fetch full textual summaries.
Developed with SDKs for JavaScript, Python, PHP, Go, and Ruby, the service is designed for product builders and marketing teams. It supports real-time data updates and continuous database refreshing, with on-demand re-analysis available. The data is public, internet-visible, and GDPR-compliant.
Listed capabilities
- Enrich companies by domain name, email address, or social network URL
- 300+ data points per company including industry, employees, revenue, and social profiles
- Search 50M+ companies using filters and natural language prompts
- Find similar companies to target accounts
- AI-powered questions and context fetching about companies
- Real-time data updates and on-demand re-analysis
- SDKs for JavaScript, Python, PHP, Go, and Ruby
- Rate limits from 50 to 1,000 requests per second depending on plan
- Public, GDPR-compliant data sourced from internet-visible information
Follow The Companies API for an email about each milestone, update and new product they post, in a daily summary.
The Companies API metrics
| Metric | Value |
|---|---|
| Domain Rating | 50 −1 (down) since last check |
| Trust Flow | 8 no change since last check |
| Citation Flow | 43 no change since last check |
| Referring domains | 129 no change since last check |
| External backlinks | 2,389 no change since last check |
Ahrefs Domain Rating listed 6 Nov 2026, relisted 5 Nov 2026. Listed under topic: Society (7). Majestic listed 4 Nov 2026, relisted 4 Nov 2026. Link data listed by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
The Companies API domain listing data
Show the listing data
| Domain age | 4 years |
|---|---|
| Registered | |
| Expires | |
| Registrar | Gandi SAS |
| DNSSEC | Not signed |
The Companies API launch receipt entry
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 51 to 50 −1 (down) since launch 4 Nov 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 8 first measured 4 Nov 2026 |
| Referring domains (Majestic) | 129 first measured 4 Nov 2026 |
Day 1 since launch. Next receipt: day 30, 4 Dec 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
Before you launch
The playbook on SaaS Directory List lists what to prepare, what to post on launch day and where else to list your product.
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Quick answers
Can I cancel or upgrade my subscription?
Yes, you can choose to cancel or upgrade your subscription at any time.
How often is the company database updated?
The database is continuously refreshed with new companies and those that no longer exist are removed. You can also request real-time analysis of any company to get the most current information.
Is the data legal and GDPR compliant?
Yes, all data on The Companies API is public, GDPR-compliant and visible on the internet by anyone. The company's value is in designing algorithms so you don't have to do all these things manually.
What can I use the data for?
You can utilize the data for any purpose you choose, including enhancing your products such as autocomplete and onboarding, as well as for sales prospecting and market research.
Do you have rate limits?
Each plan comes with specific query limits for the API detailed on the pricing page. The Startup plan allows 50 requests per second, Scaleup allows 250 requests per second, and Enterprise allows 1,000 requests per second. For higher volumes, contact the company.
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The Companies API has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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