UK Company Registry

io.github.TheCompanyAtlasPublished by GitHub account TheCompanyAtlasv1.0.0Updated Nov 11, 2026

UK Companies House search by name, company number, type, status, postcode and SIC code.

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

Searches the UK Companies House register by name, number, type, status, postcode and SIC code, and looks up a single company with its former names.

What you can do
  • Search UK companies by name, as a substring or prefix match
  • Filter results by company type, status, registered office postcode, SIC 2007 code and incorporation date range, with pagination up to 50 per page
  • Look up one company by company number, including former names
When to use it
Useful when you need to check whether a UK company exists, find companies in a sector or postcode, screen by status such as liquidation or strike-off proposals, or trace a company's former names.
Requirements
A remote Streamable HTTP endpoint; no local package or environment variables. Sign-in with Google OAuth is required when adding the connector.
Before you install
Requires signing in with a Google account to the third-party provider. Coverage is limited to live companies: dissolved companies, officers, persons with significant control and filed accounts are not included, so results are not a complete due-diligence source.

Installation

In SourceWeft

  1. Open UK Company Registry in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.TheCompanyAtlas%2Fuk-company/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "uk-company-registry": {
      "type": "http",
      "url": "https://thecompanyatlas.com/mcp/uk"
    }
  }
}

README

UK Company Registry MCP

Connect your AI assistant to about 5.7 million live UK companies on the Companies House register through The Company Atlas and the Model Context Protocol.

Search:

  • Companies in England and Wales, Scotland and Northern Ireland by name, as a substring or a prefix
  • Company number lookups, with zero-padding for short numbers (445790 → 00445790)
  • Company type (private and public limited companies, LLPs, limited partnerships, community interest companies, charitable incorporated organisations, overseas entities and more) and company status (active, proposal to strike off, liquidation, administration, receivership)
  • Registered office postcode, SIC 2007 nature-of-business codes and incorporation date
  • Former company names

Dissolved companies, officers, persons with significant control and filed accounts are not included.

The MCP connection is provided by The Company Atlas. This repository does not run a separate server.

Connect

text
https://thecompanyatlas.com/mcp/uk

Add this URL as a custom MCP connector in Claude, Cursor, or another MCP-compatible client. Sign in with Google when prompted.

Tools

UK_search_companies

Search UK companies. Filters are combined with AND logic. Include q, entityType or status; postcode, sic and the incorporation dates need q as well.

ParameterTypeDescription
qstring, optionalCompany name, 3–160 characters
nameMatchenum, optionalcontains (default) or startsWith; use startsWith for brand names
entityTypestring, optionalCompany type substring, e.g. Community Interest Company
statusenum, optionalCompany status, e.g. Active, Active - Proposal to Strike off, Liquidation, In Administration
postcodestring, optionalRegistered office postcode district (e.g. W14, M4) or longer prefix (e.g. M4 5)
sicstring, optionalSIC 2007 code, e.g. 62012
incorporatedFrom / incorporatedTodate, optionalIncorporation date range, YYYY-MM-DD
page / limitinteger, optionalPagination, limit up to 50 (default 20)

Returns { data, total, page, limit }. id is GB + the 8-character company number.

UK_get_company

One company by company number (e.g. 00445790, 445790 or SC123456), with former names.

ParameterTypeDescription
companyNumberstringCompanies House company number

Example prompts

  • "Companies starting with Tesco that are in liquidation."
  • "Solar companies incorporated since 2024."
  • "Bakeries with a registered office in the M4 postcode district."
  • "Former names of company 09202627."

Setup — Claude

  1. Go to claude.ai/customize/connectors
  2. Click Add custom connector
  3. Name it UK Companies and paste https://thecompanyatlas.com/mcp/uk
  4. Save and sign in with Google when prompted

Source: README.md at commit 997bfa6

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

1
  1. v1.0.0LatestNov 11, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.