MARSH & MCLENNAN COMPANIES UK LIMITED
Company details
- Registered name
- MARSH & MCLENNAN COMPANIES UK LIMITED
- Company number
- 03053550
- Registered office
- 1 TOWER PLACE WEST, TOWER PLACE, LONDON, EC3R 5BU
- Company type
- Private Limited Company
- Incorporated on
- 5 May 1995
- Status
- Active
- Age
- 31 years
- Nature of business (SIC)
- 70100 — Activities of head offices
- Accounts — next due
- 30 Sept 2027
- Accounts — last made up to
- 31 Dec 2025
- Confirmation statement — next due
- 01 Mar 2027
- Confirmation statement — last
- 15 Feb 2026
What the register says
Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.
- A person with significant control here also controls 8 other companies.
Companies House register snapshot, read 02/09/2026.
People with significant control
Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors
Corporate structure
Who controls this company, and who they control in turn
Connections
Change history
Reconstructed from the dated records Companies House publishes
| Date | Change | Was | Now |
|---|---|---|---|
| 20/12/2022 | Person with significant control ceased | Mmc Holdings (Uk) Limited | — |
| 20/12/2022 | Person with significant control added | — | Calm Treasury Holdings Limited |
| 06/04/2016 | Person with significant control added | — | Mmc Holdings (Uk) Limited |
Documents for MARSH & MCLENNAN COMPANIES UK LIMITED
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The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.
Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.
Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.
Data protection register
Registered with the Information Commissioner's Office as a data protection fee payer.
The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.
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About MARSH & MCLENNAN COMPANIES UK LIMITED (03053550)
MARSH & MCLENNAN COMPANIES UK LIMITED is a private limited company incorporated on 5 May 1995 and registered in the United Kingdom under company number 03053550. Its registered office is at 1 TOWER PLACE WEST, TOWER PLACE, LONDON, EC3R 5BU. The recorded nature of business is activities of head offices (SIC 70100). The company is currently active , with statutory accounts last made up to 31 December 2025. , and the person with significant control is Calm Treasury Holdings Limited. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.
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