Firmoscan
Active15291977Private limited companyLondon

SEM21 LTD

Owned by Sam Edward Mocock (75–100%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

01

Summary

Generated from filed data · no estimates

SEM21 LTD is an active private limited company (company number 15291977) incorporated on 17 November 2023, registered in London. Its registered activity is other professional, scientific and technical activities n.e.c. (SIC 74909). Latest micro accounts cover the period ending 30 November 2024, showing net assets of −£1,843, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public.

Peer position · net assets

By net assets it sits in the bottom quarter of 7,601 comparable companies in London (median £3,258, upper quartile £44k).

02

Key dates

Incorporated
17 November 20232 yrs ago
Next accounts due
30 August 202653 days overdue
Confirmation statement due
1 December 2026in 40 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

03

Activity

SIC 74909
Other professional, scientific and technical activities n.e.c.
Accounts type
Micro Entity
Size band
MicroCompanies Act thresholds
04

Financials

1 period on record · latest ending 30 November 2024
Net assets
−£1,843
1 period on record
Cash at bank
Not reported
Turnover
Not disclosed
Employees
0
1 period on record
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
30 November 2024−£1,843——£4,999——0
Current ratio0.75Current assets ÷ creditors within one year

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.

05

Filing and accounts signals

Facts from the register · no rating
  • Net assets below zeroNet assets £-1,843 at 30 November 2024
  • Current assets below creditors within one yearCurrent ratio 0.75
  • Incorporated two to five years agoIncorporated 17 November 2023
  • Accounts past their due dateDue 30 August 2026

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

06

Ownership and control

1 active
  • Mr Sam Edward Mocock
    Individual · since 17 November 2023
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

07

Timeline

Newest first
  1. Confirmation statement duein 40 days
  2. Next accounts due53 days overdue
  3. Accounts period endNet liabilities £1,843 · micro accounts
  4. Incorporated
08

Similar companies in London

Same activity (other professional, scientific and technical activities n.e.c.), closest in incorporation date

All companies incorporated on 17 November 2023 · in Nov 2023.

09

Reminders for SEM21 LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31; accounts from the Companies House accounts data product. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.

This information comes from public filings and our automated processing of them. It may contain errors, be incomplete or be out of date, and is not advice or a credit reference. Check the official record before relying on it. Terms · Privacy · Report an error (corrected within one working day).