MCP Companies Tools

15 tools for UK company analysis — profiles, financial health, trends, PSC ownership, filing compliance, ICO registration, ONS business demography, and IPO trade marks.

Each tool call costs 10 credits. All tools are read-only and idempotent.

Tool	Description	Parameters
`lookup_company`	Look up a UK company by its Companies House company number. Returns company name, status, type, date of creation, registered office address, and SIC codes.	company_number string, required
`search_companies`	Search for UK companies by name. Returns matching companies ranked by name similarity. Optionally filter by company status (e.g. 'active', 'dissolved').	query string, required status string limit integer
`company_health_score`	Get a financial health assessment for a UK company. Calculates key ratios (current ratio, debt-to-equity, profit margin, ROA, cash ratio) from the latest filing and rates each as green/amber/red.	company_number string, required
`company_financial_trends`	Get year-over-year financial trends for a UK company. Returns time series of revenue, profit, assets, and employees across all filed accounts, plus percentage changes between consecutive periods.	company_number string, required
`sector_analytics`	Get sector-level analytics for a UK SIC code. Returns company counts, active/inactive breakdown, incorporation trends (this year vs last year), and financial benchmarks if available.	sic_code string, required
`company_psc`	Get Persons with Significant Control (PSC) for a UK company. Returns individuals, corporate entities, and legal persons who have significant control over the company, including their natures of control and notification dates.	company_number string, required current_only boolean
`company_psc_changes`	Get a timeline of PSC (Persons with Significant Control) changes for a UK company — appointments and cessations in chronological order.	company_number string, required
`company_filing_status`	Check a UK company's filing compliance status. Returns whether accounts are overdue, due soon, or up to date, along with next due dates and latest filing details.	company_number string, required
`company_network`	Map the ownership network of a UK company. Shows who controls the company (PSCs) and what other companies those same people control. Useful for identifying connected businesses and beneficial ownership chains.	company_number string, required
`geographic_companies`	Get company statistics for a UK postcode area. Returns company counts, active/inactive breakdown, top industries (SIC codes), and incorporation trends for the given postcode prefix (e.g. 'EC2', 'M1', 'EH1').	postcode_prefix string, required
`recent_filings`	Get recently filed company accounts from Companies House. Returns the most recent filings in reverse chronological order. Can filter by filing type, SIC code, or date.	filing_type string sic_code string since string page integer per_page integer
`company_timeline`	Get a chronological timeline of key events for a UK company. Includes incorporation, account filings, PSC changes, and cessation events.	company_number string, required
`lookup_ico_registration`	Look up an ICO fee-payer registration by registration number, or search by organisation-name prefix, postcode area, tier, or source-provided company number.	registration_number string name string postcode_area string tier string company_number string
`lookup_business_demography`	Look up annual ONS business births, deaths, active enterprises, and survival rates for a UK geography.	geography_code string, required year integer, required
`lookup_trademarks`	Look up an IPO trade mark by application number, or search the open-data snapshot by mark-text prefix, proprietor prefix, Nice class, status, or source-provided company number.	application_number string mark_text string proprietor string nice_class integer status string company_number string

Related Resources

URI	Description
`govdata://companies/sic-codes`	UK Standard Industrial Classification (SIC) codes directory
`govdata://companies/statistics`	Platform-wide UK company statistics

Related Prompts

Prompt	Description	Arguments
`company-report`	Structured company overview from Companies House data.	company_number required
`company-due-diligence`	Comprehensive due diligence: profile, financials, PSC network, and filing compliance.	company_number required
`company-comparison`	Side-by-side comparison of two or more companies on financials, health, and compliance.	company_numbers required
`company-risk-monitor`	Monitor filing compliance, PSC changes, and financial trajectory.	company_number required
`company-ownership-map`	Map significant-control relationships around a company.	company_number required

View REST API docs for Companies →

Data Coverage

Source	Companies House; Information Commissioner's Office; Office for National Statistics
Date range	Active companies register (14 statuses, including active, liquidation, and in-administration); dissolved companies are not yet ingested
Records	~5.9M companies; 1,433,320 ICO registrations in the measured 9 August 2026 extract
Updated	Monthly company snapshot, daily accounts filings, daily ICO full snapshot
Limitations	Filings span 2009–present with no year cutoff. Structured financial figures are currently extracted from a minority of filings (~3% of companies have revenue data); coverage is expanding as extraction improves.

ONS demography: 2,532 geography-year observations for 2019–2024, refreshed annually around November under OGL v3.0. Counts are rounded to base 5 and boundaries vary by year.

Prompt decision: area-business-profile gains one additive lookup_business_demography step when an ONS code is known.

ICO licence: Open Government Licence v3.0, excluding personal data.

ICO caveat: Daily UK-wide register; no company number is supplied, so no name-based company join is attempted. The tool exposes only flags for published DPO details, not personal contact values.

Prompt decision: company-due-diligence is not extended with an ICO step because its required company number cannot be joined directly to this source. Agents can call lookup_ico_registration separately with a known ICO reference or organisation filters.

IPO trade marks: lookup_trademarks costs 10 credits and is read-only and idempotent. It searches the OGL v3.0 snapshots last updated 13 February 2018; live-register verification is required. The extracts carry no company number, so company-due-diligence is not extended and no fuzzy proprietor join is attempted. See the REST reference.