1SIM LTD
Company details
- Registered name
- 1SIM LTD
- Company number
- 15607285
- Registered office
- 27 OLD GLOUCESTER STREET, LONDON, WC1N 3AX, UNITED KINGDOM
- Company type
- Private Limited Company
- Incorporated on
- 1 April 2024
- Status
- Unknown
- Age
- 2 years
- Nature of business (SIC)
- 61200 — Wireless telecommunications activities
- Accounts — next due
- 01 Jan 2026
- Confirmation statement — next due
- 14 Apr 2027
- Confirmation statement — last
- 31 Mar 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.
- Accounts were due on 1 January 2026 and the register does not show them filed (8 months overdue).
- Incorporated on 1 April 2024 and no accounts have been filed.
- 9,943 companies are registered at this address — commonly a formation agent or an accountant rather than an office.
- A person with significant control here also controls 1 other company.
Companies House register snapshot, read 02/09/2026.
Officers
1 active
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
Serving officers
Change history
Reconstructed from the dated records Companies House publishes
| Date | Change | Was | Now |
|---|---|---|---|
| 01/04/2024 | Person with significant control added | — | Gregor Frédérique Mittelstaedt |
| 01/04/2024 | Director appointed | — | MITTELSTAEDT, Gregor Frédérique |
Documents for 1SIM LTD
Need this one company on file? Buy the document on its own — no plan required.
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.
Filing history
Most recent filings
Data protection register
No entry found on the ICO register of fee payers under this name.
Not every organisation has to register — some are exempt. An absent entry is a question to ask, not a finding.
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/15607285
X-Api-Key: $OPENDATA_KEYFrequently asked questions
What is the company number of 1SIM LTD?▾
Where is 1SIM LTD registered?▾
Who runs 1SIM LTD?▾
What is the SIC code of 1SIM LTD?▾
Who controls 1SIM LTD?▾
When are the next accounts of 1SIM LTD due?▾
About 1SIM LTD (15607285)
1SIM LTD is a private limited company incorporated on 1 April 2024 and registered in the United Kingdom under company number 15607285. Its registered office is at 27 OLD GLOUCESTER STREET, LONDON, WC1N 3AX, UNITED KINGDOM. The recorded nature of business is wireless telecommunications activities (SIC 61200). The company is currently unknown . 1 active officer is on record , and the person with significant control is Gregor Frédérique Mittelstaedt. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 9 September 2026.
Companies at the same registered office
Wireless telecommunications activities across UK registers
The same sector and the same company, seen through every register we hold
Explore by sector
Every UK company records what it does as a SIC code — browse the sectors around this one.