Kartoteka.by is a business information service operated by Kartoteka LLC in Minsk, Belarus. It helps organizations assess existing and prospective business partners by searching company records with a registration number (UNP) and reviewing information from more than 100 sources, including government agencies and information systems. Its data covers company status, tax debts, court history, public registers, tenders and government procurement, scheduled inspections, bankruptcy and liquidation, financial reporting, contacts, and business connections. The service also provides risk assessments, information on payment reliability, and records relevant to legal and financial due diligence.

Kartoteka.by offers tools for searching and exporting company data, monitoring counterparties around the clock, and receiving notifications when records change. Businesses can integrate checks into their own workflows through an API, including connections with 1C and CRM systems. Subscription plans provide different levels of access, monitoring capacity, and research features, alongside a free 24-hour trial with limited company searches. The platform serves managers, accountants, finance teams, security specialists, sales professionals, and lawyers seeking to make more informed decisions and reduce commercial risks.