UK Multi-Company Owners from Companies House

Not a list of companies. A list of the people behind them.

Companies House shows you one company at a time. It never tells you that the owner of the company you just looked up controls six others. This Actor works that out across the whole UK register of people with significant control and gives you one row per person: how many companies they control, and each company's name, status, activity, incorporation date and share band.

Pick a postcode area (M for Manchester, LS for Leeds, SW for south-west London...), a minimum number of companies, optionally an industry, and get the owners with the most companies first.

Measured on 2026-10-17, whole UK register

People who control	Live companies	Active companies only
2 or more	898,297	800,762
3 or more	285,202	248,781
5 or more	59,360	50,979
10 or more	7,620	6,656
100 or more	53	44

Only companies still on the register count. The owners file also keeps people of companies that have since been dissolved (2.35 million of the 4.89 million companies it names for these people are no longer live); those are left out. Birth month and year, nationality and country of residence are published for 100 % of owners, and a UK postcode for 99.4 %.

Biggest postcode areas by owners: B (Birmingham) 29,478, W (west London) 27,239, N (north London) 26,468, E (east London) 21,842, EC (City of London) 21,641, M (Manchester) 21,208.

What you get per owner

• Who: name as registered, birth month and year, nationality, country of residence, service address, postcode and postcode area.
• Portfolio: number of companies and of active companies, newest and oldest incorporation date, main activities (SIC codes).
• Each company: number, name, status, type, incorporation date, registered postcode and town, SIC codes, share band (for example 75-100%), voting band, whether the person can appoint the directors, significant influence, the date they became an owner, and a link to the company on Companies House.
• Dates of the data: pscSnapshotDate and companyFileDate on every row.

What the registers do not publish, so this Actor does not promise

• Phone numbers and email addresses. Neither register has them.
• Full date of birth. Companies House publishes only month and year.
• Home address. The address is the service address the person gave: often the company's office or their accountant's.
• One id per person. Companies House gives none for people with significant control. Owners are matched by name and birth month, so two people with the same name born in the same month are counted as one, and a name spelt two ways counts as two. People with hundreds of companies are usually company formation agents, nominees or mass registrations of dormant companies (on 2026-10-17 the owner with most companies in Manchester had 461: 460 dormant, most incorporated between November 2025 and January 2026, at two registered addresses): use Maximum companies per owner to leave them out.
• Directors who are not owners. This Actor reads the owners register (people with significant control), not the list of directors.

Examples

Serial owners in Manchester

{
  "postcodeAreas": ["M"],
  "minCompanies": 5,
  "maxCompanies": 50,
  "maxResults": 500
}

Property owners with three or more companies in west London

{
  "postcodeAreas": ["W", "SW", "NW"],
  "minCompanies": 3,
  "sicPrefixes": ["68"],
  "maxCompanies": 100
}

Whole UK: owners of 3 or more companies who started one in the last 60 days

{
  "minCompanies": 3,
  "newCompanyWithinDays": 60,
  "maxResults": 5000
}

Who uses this

• Accountants and business brokers: one owner with several companies means several sets of accounts and possible sales.
• Commercial lenders and property finance: owners of property companies (SIC 68) hold their buildings in separate companies.
• B2B sales: serial founders buy services again and again.
• Due diligence: see what else the owner of a supplier or client controls.

Where the data comes from and how fresh it is

Two official open files from Companies House, published under the Open Government Licence: the people with significant control snapshot (rebuilt every day) and the company data product (rebuilt on the 1st of each month). No login, no API key, no scraping of web pages.

Reading and joining 16 million records takes several minutes, so this Actor keeps a prepared copy, refreshed every month after the company file comes out. Your run only reads the postcode areas you ask for, which keeps it fast and cheap. Companies incorporated after the latest monthly company file appear with the status "New since the monthly company file" and without a name until the next refresh.

Data protection

Every row is personal data from a public register. Under UK GDPR you need a lawful basis to use it (for example legitimate interest for business-to-business contact) and you must respect the rights of the people listed. You are responsible for how you use the data.

Pricing

Per owner delivered (owner event), whatever the size of their portfolio, plus the platform's start fee. Set Maximum owners or the run's maximum total charge to cap the cost.