opendata.bot
Company number
05172311

PEN UNDERWRITING LIMITED

Officer · OTTERSON, Robert James and 56 others
Active
✓ Active company on the official register. Next accounts due 30 September 2027.

Company details

London, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
PEN UNDERWRITING LIMITED
Company number
05172311
Registered office
THE WALBROOK BUILDING, 25 WALBROOK, LONDON, EC4N 8AW · 70 other companies at this postcode
Company type
Private Limited Company
Incorporated on
7 July 2004
Status
Active
Age
22 years
Previous names
OIM UNDERWRITING LIMITED (to 29 Sept 2015) · OXYGEN INSURANCE MANAGERS LIMITED (to 29 Sept 2015)
Nature of business (SIC)
65120 — Non-life insurance
Accounts — next due
30 Sept 2027
Accounts — last made up to
31 Dec 2025
Confirmation statement — next due
13 Jul 2027
Confirmation statement — last
29 Jun 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.

Companies House register snapshot, read 02/09/2026.

Officers

10 active · 47 resigned

secretary
Appointed 17/12/2024
Active
director
Appointed 11/03/2025
Active
director
Appointed 21/06/2021
Active
director
Appointed 14/03/2024
Active
director
Appointed 10/09/2018
Active
director
Appointed 09/05/2025
Active
director
Appointed 13/07/2017
Active
director
Appointed 14/03/2024
Active
director
Appointed 27/10/2025
Active
director
Appointed 14/03/2024
Active

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Gallagher Holdings (Uk) Limited
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 30/09/2016

Corporate structure

Who controls this company, and who they control in turn

1 controller Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Corporate owner owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 30/09/2016 Controls 49 companies

Serving officers

secretary Appointed 17/12/2024
director Appointed 11/03/2025
director Appointed 21/06/2021
director Appointed 14/03/2024
director Appointed 10/09/2018

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
28/02/2026 Director resigned DRUMMOND-SMITH, James
27/10/2025 Director appointed RUSH, David James
09/05/2025 Director appointed FRANCIS, Clare Louise
11/03/2025 Director appointed CLUTTERBUCK, Neil Andrew
04/01/2025 Director resigned PATTEN, Louise Alexandra Virginia, Lady
17/12/2024 Secretary appointed OTTERSON, Robert James
26/07/2024 Secretary resigned PEEL, Alistair Charles
14/03/2024 Director resigned WRIGHT, Nicholas Lloyd
14/03/2024 Director resigned THOMSON, Catriona Anne
14/03/2024 Director resigned STRUTT, Jennifer Louise
14/03/2024 Director resigned LUCAS, Matthew
14/03/2024 Director appointed PATTEN, Louise Alexandra Virginia, Lady
14/03/2024 Director appointed DRUMMOND-SMITH, James
14/03/2024 Director appointed SCOTT, Charles Douglas Knowles
14/03/2024 Director appointed LANGLEY, Susan Carol
14/03/2024 Director appointed CRAWFORD, Charles Robertson
12/07/2023 Director appointed THOMSON, Catriona Anne
01/07/2023 Director resigned BRESLIN, Sarah
01/11/2021 Director resigned NEWBERY, Trevor Philip
29/07/2021 Director appointed WRIGHT, Nicholas Lloyd

Financial highlights

No figures could be read from the accounts filed on 05 Jun 2026. Companies House holds some filings only as a document image, which carries no tagged figures; the filing itself is on the register either way.

Documents for PEN UNDERWRITING LIMITED

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Company extract£1.99

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.

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Financial statements£3.99

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.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Filing history

Most recent filings

CH01 — change-person-director-company-with-change-date
officers
CS01 — confirmation-statement-with-updates
confirmation-statement
AA — accounts-with-accounts-type-full
accounts
TM01 — termination-director-company-with-name-termination-date
officers
AP01 — appoint-person-director-company-with-name-date
officers
RESOLUTIONS — resolution
resolution
MA — memorandum-articles
incorporation
CH01 — change-person-director-company-with-change-date
officers
CH01 — change-person-director-company-with-change-date
officers
CH01 — change-person-director-company-with-change-date
officers
AA — accounts-with-accounts-type-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AP01 — appoint-person-director-company-with-name-date
officers
AP01 — appoint-person-director-company-with-name-date
officers
TM01 — termination-director-company-with-name-termination-date
officers
AP03 — appoint-person-secretary-company-with-name-date
officers
TM02 — termination-secretary-company-with-name-termination-date
officers
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-full
accounts
AP01 — appoint-person-director-company-with-name-date
officers
TM01 — termination-director-company-with-name-termination-date
officers
TM01 — termination-director-company-with-name-termination-date
officers
AP01 — appoint-person-director-company-with-name-date
officers
AP01 — appoint-person-director-company-with-name-date
officers
AP01 — appoint-person-director-company-with-name-date
officers

Data protection register

Registered with the Information Commissioner's Office as a data protection fee payer.

Pen Underwriting Limited — EC4N 8AW
Tier 1 · renews 06/12/2026
ICO entry

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.

Get this company via API

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Read the API docs

Frequently asked questions

What is the company number of PEN UNDERWRITING LIMITED?
According to the official registry, the company number of PEN UNDERWRITING LIMITED is 05172311.
Where is PEN UNDERWRITING LIMITED registered?
The registered office is THE WALBROOK BUILDING, 25 WALBROOK, LONDON, EC4N 8AW.
Who runs PEN UNDERWRITING LIMITED?
OTTERSON, Robert James is listed among the officers of PEN UNDERWRITING LIMITED.
What is the SIC code of PEN UNDERWRITING LIMITED?
The nature of business is recorded under SIC code 65120 — Non-life insurance.
Who controls PEN UNDERWRITING LIMITED?
Gallagher Holdings (Uk) Limited is recorded as a person with significant control, and owns 75–100% of shares, holds 75–100% of voting rights, can appoint and remove directors.
When are the next accounts of PEN UNDERWRITING LIMITED due?
The next annual accounts are due by 30 September 2027, and the last accounts were made up to 31 December 2025.

About PEN UNDERWRITING LIMITED (05172311)

PEN UNDERWRITING LIMITED is a private limited company incorporated on 7 July 2004 and registered in the United Kingdom under company number 05172311. Its registered office is at THE WALBROOK BUILDING, 25 WALBROOK, LONDON, EC4N 8AW. The recorded nature of business is non-life insurance (SIC 65120). The company is currently active , with statutory accounts last made up to 31 December 2025. 57 active officers are on record , and the person with significant control is Gallagher Holdings (Uk) Limited. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 9 September 2026.

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