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Check companies in the official register

Legal name, number, status and VAT validity for each company in your list, from official sources.

  • You start it: When you start it
Use in CuiarRun from your AI agent

What it does

The task

Open the sheet sheet url. For each company, search the official company register of its country, such as Companies House in the UK or the Handelsregister in Germany. Check its VAT number in the EU VIES service when it has one. Record the legal name, the registration number, the status (active, dissolved or in liquidation), the date of incorporation, the registered address, and whether the VAT number is valid, with the date of the check. Write the results in new columns, and mark each row where the name or the address differs from our data. Do not change the original columns.

  • It works in any government site and Google Sheets, in the workspace you pick, and signs in with passwords from your Cuiar vault.
  • It runs once, when you start it.

What you give it

BlankWhat to giveExample
sheet urlThe Google Sheet with company names, countries and VAT numbershttps://docs.google.com/spreadsheets/d/1Cr5hWk3Tp/edit

What you get back

An example run with the example values above. Your run uses your own data.

Companies checked: 146 suppliers in 9 countries

Active: 131. Dissolved: 4. In liquidation: 3. Not found: 8

VAT numbers valid: 118 of 127. Not valid: 9

Name differs: 17 (for example, 'Bergmann Tools' is 'Bergmann Werkzeuge GmbH')

Address differs: 11

Needs attention: Lumen Print Ltd was dissolved in March 2026 and still gets orders

New columns: Legal name, Number, Status, Incorporated, Address, VAT valid, Checked on

Run it in Cuiar

  1. 01

    Open it

    Click Use in Cuiar on this page. The side panel opens with the task in the composer.

  2. 02

    Fill in the blank

    Type sheet url. Tab moves to the next blank.

  3. 03

    Run it

    Run sends it to the agent. Follow each step in the panel, and stop it at any time.

From the terminal

cuiar exec "Open the sheet https://docs.google.com/spreadsheets/d/1Cr5hWk3Tp/edit. For each company, search the official company register of its country, such as Companies House in the UK or the Handelsregister in Germany. Check its VAT number in the EU VIES service when it has one. Record the legal name, the registration number, the status (active, dissolved or in liquidation), the date of incorporation, the registered address, and whether the VAT number is valid, with the date of the check. Write the results in new columns, and mark each row where the name or the address differs from our data. Do not change the original columns."

Run it from your AI agent

Claude Code, Codex, Cursor and other MCP clients reach Cuiar at https://mcp.cuiar.com/mcp. Add the server one time, then ask for the task in plain words, or call run_task yourself.

1. Add Cuiar to Claude Code

claude mcp add --transport http cuiar https://mcp.cuiar.com/mcp

2. Ask your agent

Use the Cuiar tool run_task to run my "Check companies in the official register" template with sheet url = https://docs.google.com/spreadsheets/d/1Cr5hWk3Tp/edit.

Setup for other agents: AI agents.

The tool call

{
  "name": "run_task",
  "arguments": {
    "task": "Open the sheet https://docs.google.com/spreadsheets/d/1Cr5hWk3Tp/edit. For each company, search the official company register of its country, such as Companies House in the UK or the Handelsregister in Germany. Check its VAT number in the EU VIES service when it has one. Record the legal name, the registration number, the status (active, dissolved or in liquidation), the date of incorporation, the registered address, and whether the VAT number is valid, with the date of the check. Write the results in new columns, and mark each row where the name or the address differs from our data. Do not change the original columns."
  }
}

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