Welcome to OpenRegister
Get instant access to data on 4+ million German companies from official sources. Search for companies, check ownership structures, view financials, and retrieve official documents - all through a simple API.Getting Started
Ready to start? Check out our Quickstart Guide to get up and running in minutes.- Sign up and grab your API key (no credit card required)
- Start with 50 free requests per month
- Follow the Quickstart to integrate
What You Can Do
Company Information - Names, registration details, management teams, addresses, and contact info Find Companies - Search by name, website, or location. Filter by industry, size, and legal form Ownership - See who owns what, track beneficial owners, explore corporate structures Financials - Balance sheets, revenue, and key metrics from published reports Documents - Official register documents directly from the sourcePopular Use Cases
Companies use OpenRegister for compliance and KYC, sales intelligence, due diligence, market research, and legal services. If you work with German companies, we probably have the data you need.Need Help?
Questions? Want to discuss your use case? Just reach out at [email protected]. We’re here to help you succeed.Data Sources
Access three comprehensive data sources through our API:Handelsregister
Official register data for 4+ million companies - management, ownership, registration details, and documents
Bundesanzeiger
Financial statements and reports - balance sheets, revenue, and key metrics published by companies
Web Data
Real-world contact details - emails, phone numbers, and social media profiles from company websites