Two tools.
One token.
A single API for working with company data — from search to events. No more connecting multiple systems or manually tracking changes.
Add companies.
Be first when something changes.
Add any company to your watchlist by NIP, REGON, or KRS. Every day the system compares fresh registry snapshots against the previous state and generates typed events for every detected change.
Manually tracking changes across companies is impossible at scale. Watchlist does it automatically — you watch the companies that matter to you, and the system tells you every day what changed. Name change, new address, suspension, bankruptcy filing — every event is described, categorized, and delivered with full context.
Identity & legal form
Address
Business activities
Entity status
Bankruptcy
Contact & local units
Real-world use cases.
Contractor monitoring
Detect supplier changes before they impact your business. Know immediately when a company changes address, suspends operations, or declares bankruptcy.
Compliance & KYC
Automatically detect changes in client companies relevant to regulatory compliance. Every event with a date and full context.
Risk management
Early warning signals — suspension, bankruptcy, change of legal form. React before the problem affects your business.
CRM data sync
Automatically sync company data changes with your system. No more outdated addresses and phone numbers.
# Dodaj do watchlisty POST /api/v1/companies/add { "name": "NIP", "value": ["1234567890"] } # Pobierz zdarzenia z watchlisty GET /api/v1/watchlist/events?event_type=COMPANY_NAME_CHANGED&from_date=2026-01-01
Search and filter company data
according to your own criteria.
The Company Search API enables precise searches of the company register using a set of filters tailored to your use case. Each result is a direct response to your query—without redundant or random data.
You can narrow your results to companies with specific data, including contact information, and build exactly the dataset you need.
Flexible data filtering
Filter companies by any criteria — contact, industry, legal form, or registration date. You decide what matters.
Precise segmentation
Build precise company segments based on activity codes, location, legal form, and time of operation. Data tailored to your use case.
Full entity data
Each result includes a complete company profile—identifiers, addresses, activities, and available contact information. All structured and ready to use.
Ready for integration
Leverage data within your system—CRM, analytics, or automation. The API delivers data in a form ready for processing.
Real-world use cases.
B2B lead generation
Pull new companies from your industry every day — ones that have contact data. Build your pipeline before the competition does.
Contractor verification
Before signing a contract, verify the company exists in the registry, check its status, and confirm contact details are current.
CRM enrichment
Fill in missing data in your existing customer base — addresses, PKD codes, current phone numbers and email addresses.
Market research
Analyze the number of companies in a given industry, region, or registration date range. First-hand data.
GET /api/v1/companies/search?has_contact=phone&activities=47&open_from=2025-01-01 curl "https://api.alexambros.com/api/v1/companies/search?has_contact=phone&activities=47&open_from=2025-01-01" \ -H "Authorization: Bearer sk_api_xxxx"
Ready to integrate?
Full API documentation, authentication guide, and endpoint reference — everything you need to get started.