An AI tool for verifying public register data
An internal tool for TREXIMA checking de minimis eligibility across six registries in parallel, returning a decision with an evidence report.
TREXIMA Bratislava, spol. s r.o. is a Slovak company operating in labor market research and compensation. Verifier is its internal tool for administering the DM-08/2024 minimal-aid scheme — an unpublished, login-protected application for internal use.
The goal was to automate the decision process for verifying a company's eligibility for de minimis aid under the DM-08/2024 scheme — combining data from six different registries in real time without manually searching each one separately, while fully respecting GDPR.
Building this compliance tool, we tackled several key challenges.
- Six sources, one consistent picture
Financial, ownership and personnel data are scattered across FinStat, ORSR, RPO, RÚZ, Transparex and IS SEMP — these had to be merged into one consistent case.
- Aid is calculated per group, not per company
De minimis rules apply to a "single undertaking" — the entire network of companies connected through ownership — the tool had to reconstruct ownership graphs and correctly sum aid across the whole group.
- Real data with no permanent storage
A GDPR-stateless architecture required that the verified entity's data never be saved to a database — only a temporary cache and a one-time downloadable report.
- Runs of minutes, not seconds
Some checks take several minutes for larger networks of connected companies — progress had to be shown live instead of leaving an empty wait.
We built a Next.js application with login, company lookup by registration number or name, and a verification run that pulls data from all six sources in parallel, streaming progress live via Server-Sent Events.
- Company lookup by registration number or name with autocomplete via FinStat
- Parallel data retrieval from 6 sources (FinStat, ORSR, RPO, RÚZ, Transparex, IS SEMP)
- A live progress indicator for the verification run via SSE
- Automatic VIABLE / NOT_VIABLE / NEEDS_REVIEW decisions with reasons
- A complete DOCX evidence report with an ownership diagram and a de minimis aid table
- GDPR-stateless mode — the report is deleted immediately after the first download or after one hour
Registry and rule analysis
We mapped six external data sources and the rules for calculating de minimis aid across connected companies.
GDPR-stateless architecture design
We designed a system with no permanent storage of the verified entity, only a temporary TTL cache.
Development and parallel scraping
We implemented a Next.js application with parallel retrieval from 6 registries via SSE and Playwright scraping of Transparex.
Decision logic and reporting
We built the evaluation of NACE exclusions, the aid ceiling and size category, with generation of a DOCX evidence report.
Verifier automated a decision process that previously required manually searching six registries at once — a reviewer now enters a registration number and gets a clear decision within minutes, with an exportable evidence document.