Most of what the Estonian e-state does, from filing taxes to forming a company, depends on a system few people see. Estonian X-Road, known in Estonia as X-tee, is the layer through which public and private databases exchange data with each other. This article explains what it is, how it works and how a company can connect to it.
What X-Road is
Estonia does not keep its data in one central database. Each institution keeps its own, and X-Road connects them. When one system needs data from another, it asks for it through X-Road, and the answer comes back signed and time-stamped.
X-Road has run since 2001. It is open source and is developed by the Nordic Institute for Interoperability Solutions (NIIS), which Estonia and Finland founded together. Finland, Iceland and the Faroe Islands use the same technology for their national data exchange.
X-Road in numbers
The Information System Authority (RIA) publishes current figures in its X-tee factsheet. As of 1 October 2026, the Estonian X-tee had 1,003 member institutions and enterprises, 252 of them in the public sector, and about 52,000 organizations using its services indirectly. Members had connected 2,099 information systems and installed 206 security servers. In total, 3,859 services were available through it.
In the latest month X-tee carried about 385 million requests, and more than 24.6 billion since it started. Citizens make about 3% of the requests. RIA estimates that these alone saved 3,199 working years in the previous calendar year, assuming each request saves 15 minutes. Since 2001 the protocol has been amended only four times.
How it works
Every member runs a security server between its own systems and X-Road. The security servers handle every exchange on both sides. Both parties prove their identity with certificates from a trusted authority, and the data travels over an encrypted connection. Every message is signed and time-stamped, so it can later be shown exactly what was exchanged and when. A service provider grants access to each of its services separately, client by client.
With no central database, there is no single place where all the data sits.
What a company can do with it
For a company, X-Road means checking data at the source instead of relying on copies. A person or company can be checked against the state’s own records rather than an uploaded PDF. VAT status and other taxpayer data can be retrieved from the Tax and Customs Board, and changes to a company’s board or beneficial owners can be tracked as they happen. For a business doing compliance or onboarding at volume, this replaces manual checks with queries that return in under a second.
Capture on X-Road
Capture is an X-tee member. Our subsystem, Capture App, is listed in the X-tee service catalogue, and we run our own security servers in both the test and the production environment. We obtained the certificates ourselves and query state providers directly.
We offer that experience to other companies and institutions that want to connect. We help assess whether X-Road fits a given use case and map out the joining process, certificates and access agreements. We can host and maintain the security server on isolated, monitored systems, so the company does not have to build that capacity itself. We also help connect X-Road data to a company’s own applications and compliance processes.
To discuss a connection, contact us. A company that still needs an Estonian legal address and a licensed contact person can start with our Standard plan.
