opendata.bot
Company number
13428300

ONSIDE ACCOUNTING LIMITED

Officer · BRENNAN, Martin Edward and 2 others
Active
✓ Active company on the official register. Next accounts due 30 September 2026.

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
ONSIDE ACCOUNTING LIMITED
Company number
13428300
Registered office
86-90 PAUL STREET, LONDON, ENGLAND, EC2A 4NE, UNITED KINGDOM · 28,729 other companies at this postcode
Company type
Private Limited Company
Incorporated on
28 May 2021
Status
Active
Age
5 years
Nature of business (SIC)
69201 — Accounting and auditing activities · 69202 — Bookkeeping activities · 69203 — Tax consultancy
Accounts — next due
30 Sept 2026
Accounts — last made up to
31 Dec 2024
Confirmation statement — next due
10 Jun 2027
Confirmation statement — last
27 May 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

2 active · 1 resigned

director
Appointed 28/05/2021
Active
director
Appointed 27/07/2026
Active

People with significant control

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

Mr Martin Edward Brennan
owns 50–75% of shares · holds 50–75% of voting rights · can appoint and remove directors
Notified 28/05/2021
Mrs Jessica Ann Brennan
owns 25–50% of shares · holds 25–50% of voting rights
Notified 30/05/2024
Multiplier Holdings Uk Limited
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 29/08/2025

Corporate structure

Who controls this company, and who they control in turn

3 controllers 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 29/08/2025 Controls 2 companies
Mr Martin Edward Brennan
born 04/1987 · England owns 50–75% of shares · holds 50–75% of votes · can appoint and remove directors Control ended 29/08/2025 Controls 4 companies
Mrs Jessica Ann Brennan
born 01/1991 · England owns 25–50% of shares · holds 25–50% of votes Control ended 29/08/2025 Controls 2 companies

Serving officers

director Appointed 28/05/2021
director Appointed 27/07/2026

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
27/07/2026 Director appointed SCOTT, Michael
22/12/2025 Secretary resigned BRENNAN, Jessica Ann
29/08/2025 Person with significant control ceased Mrs Jessica Ann Brennan
29/08/2025 Person with significant control ceased Mr Martin Edward Brennan
29/08/2025 Person with significant control added Multiplier Holdings Uk Limited
01/08/2024 Secretary appointed BRENNAN, Jessica Ann
30/05/2024 Person with significant control added Mrs Jessica Ann Brennan
28/05/2021 Person with significant control added Mr Martin Edward Brennan
28/05/2021 Director appointed BRENNAN, Martin Edward

Financial highlights

No figures could be read from the accounts filed on 09 Jul 2025. 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 ONSIDE ACCOUNTING LIMITED

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Company extract£1.99

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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

AP01 — appoint-person-director-company-with-name-date
officers
CS01 — confirmation-statement-with-updates
confirmation-statement
CH01 — change-person-director-company-with-change-date
officers
TM02 — termination-secretary-company-with-name-termination-date
officers
MA — memorandum-articles
incorporation
RESOLUTIONS — resolution
resolution
PSC02 — notification-of-a-person-with-significant-control
persons-with-significant-control
PSC07 — cessation-of-a-person-with-significant-control
persons-with-significant-control
PSC07 — cessation-of-a-person-with-significant-control
persons-with-significant-control
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-updates
confirmation-statement
PSC04 — change-to-a-person-with-significant-control
persons-with-significant-control
PSC01 — notification-of-a-person-with-significant-control
persons-with-significant-control
CH03 — change-person-secretary-company-with-change-date
officers
AD01 — change-registered-office-address-company-with-date-old-address-new-address
address
AA — accounts-with-accounts-type-total-exemption-full
accounts
AP03 — appoint-person-secretary-company-with-name-date
officers
CS01 — confirmation-statement-with-updates
confirmation-statement
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-micro-entity
accounts
PSC04 — change-to-a-person-with-significant-control
persons-with-significant-control
CH01 — change-person-director-company-with-change-date
officers
AA — accounts-with-accounts-type-micro-entity
accounts
AA01 — change-account-reference-date-company-previous-shortened
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement

Data protection register

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

Onside Accounting Limited — EC2A 4NE
Tier 1 · renews 08/08/2027
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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Frequently asked questions

What is the company number of ONSIDE ACCOUNTING LIMITED?
According to the official registry, the company number of ONSIDE ACCOUNTING LIMITED is 13428300.
Where is ONSIDE ACCOUNTING LIMITED registered?
The registered office is 86-90 PAUL STREET, LONDON, ENGLAND, EC2A 4NE, UNITED KINGDOM.
Who runs ONSIDE ACCOUNTING LIMITED?
BRENNAN, Martin Edward is listed among the officers of ONSIDE ACCOUNTING LIMITED.
What is the SIC code of ONSIDE ACCOUNTING LIMITED?
The nature of business is recorded under SIC code 69201 — Accounting and auditing activities, 69202 — Bookkeeping activities, 69203 — Tax consultancy.
Who controls ONSIDE ACCOUNTING LIMITED?
Mr Martin Edward Brennan is recorded as a person with significant control, and owns 50–75% of shares, holds 50–75% of voting rights, can appoint and remove directors.
When are the next accounts of ONSIDE ACCOUNTING LIMITED due?
The next annual accounts are due by 30 September 2026, and the last accounts were made up to 31 December 2024.

About ONSIDE ACCOUNTING LIMITED (13428300)

ONSIDE ACCOUNTING LIMITED is a private limited company incorporated on 28 May 2021 and registered in the United Kingdom under company number 13428300. Its registered office is at 86-90 PAUL STREET, LONDON, ENGLAND, EC2A 4NE, UNITED KINGDOM. The recorded nature of business is accounting and auditing activities (SIC 69201). The company is currently active , with statutory accounts last made up to 31 December 2024. 3 active officers are on record , and the person with significant control is Mr Martin Edward Brennan. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 13 September 2026.

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