opendata.bot
Company number
15060175

ALLIN1 ADVISORY LTD

Active
✓ Active company on the official register. Next accounts due 31 December 2026.

Company details

Registered name
ALLIN1 ADVISORY LTD
Company number
15060175
Registered office
1 CORNHILL, LONDON, EC3V 3ND, ENGLAND
Company type
Private Limited Company
Incorporated on
9 August 2023
Status
Active
Age
3 years
Nature of business (SIC)
69102 — Solicitors
Accounts — next due
31 Dec 2026
Accounts — last made up to
31 Mar 2025
Confirmation statement — next due
23 Jul 2027
Confirmation statement — last
09 Jul 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.

People with significant control

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

Mr Simon Justin Colin Williams
Notified 09/08/2023
Mrs Karen Holden
Notified 09/08/2023

Corporate structure

Who controls this company, and who they control in turn

2 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Mrs Karen Holden
born 11/1975 · England owns 75–100% of shares · holds 75–100% of votes Notified 09/08/2023 Controls 3 companies
Mr Simon Justin Colin Williams
born 03/1972 · United Kingdom owns 25–50% of shares · holds 25–50% of votes Control ended 21/01/2025 Controls 3 companies

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
21/01/2025 Person with significant control ceased Mr Simon Justin Colin Williams
09/08/2023 Person with significant control added Mrs Karen Holden
09/08/2023 Person with significant control added Mr Simon Justin Colin Williams

Documents for ALLIN1 ADVISORY LTD

Need this one company on file? Buy the document on its own — no plan required.

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

Data protection register

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

Allin1 Advisory Ltd — EC3V 3ND
Tier 1 · renews 03/07/2027
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

Every field on this page is available as structured JSON behind one endpoint and one API key.

GET /v1/company/gb/15060175
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of ALLIN1 ADVISORY LTD?
According to the official registry, the company number of ALLIN1 ADVISORY LTD is 15060175.
Where is ALLIN1 ADVISORY LTD registered?
The registered office is 1 CORNHILL, LONDON, EC3V 3ND, ENGLAND.
What is the SIC code of ALLIN1 ADVISORY LTD?
The nature of business is recorded under SIC code 69102 — Solicitors.
Who controls ALLIN1 ADVISORY LTD?
Mr Simon Justin Colin Williams is recorded as a person with significant control.
When are the next accounts of ALLIN1 ADVISORY LTD due?
The next annual accounts are due by 31 December 2026, and the last accounts were made up to 31 March 2025.

About ALLIN1 ADVISORY LTD (15060175)

ALLIN1 ADVISORY LTD is a private limited company incorporated on 9 August 2023 and registered in the United Kingdom under company number 15060175. Its registered office is at 1 CORNHILL, LONDON, EC3V 3ND, ENGLAND. The recorded nature of business is solicitors (SIC 69102). The company is currently active , with statutory accounts last made up to 31 March 2025. , and the person with significant control is Mr Simon Justin Colin Williams. 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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