£1.36m
+30%vs Dec 2023Active04287955Private limited companyLondon
SUPERIOR SDI LIMITED
Significant control: Carmen Castillo (50–75%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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What does Superior Sdi Limited sell?
Registered activity: Management consultancy activities other than financial management (SIC 70229). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
SUPERIOR SDI LIMITED is an active private limited company (company number 04287955) incorporated on 14 September 2001, registered in London. Its registered activity is management consultancy activities other than financial management (SIC 70229). Latest small accounts cover the period ending 31 December 2024, showing net assets of £1.36m and cash of £569k, with 5 employees on average. Net assets rose 30% on the prior period (£1.05m).
Peer position · net assets
By net assets it sits in the top quarter of 31,398 comparable companies in London (median £2,815, upper quartile £34k).
02
Ownership and control
- Carmen Castillo
- owns 50–75% of shares
- holds 50–75% 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. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 14 September 200125 yrs ago
- Next accounts due
- 30 September 202628 days overdue
- Confirmation statement due
- 28 September 2027in 335 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 70229
- Management consultancy activities other than financial management
- SIC 82110
- Combined office administrative service activities
- Accounts type
- Small
- Size band
- MicroCompanies Act thresholds
05
Financials
£569k
−2%vs Dec 2023Not reported
5
−29%vs Dec 2023| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2024 | £1.36m | £569k | £2.54m | — | — | — | 5 |
| 31 December 2023 | £1.05m | £582k | £2.27m | — | — | — | 7 |
Cash per employee£114kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £1,362,659 at 31 December 2024
- Net assets up 10% or more on the prior period+29.7% vs prior period
- Cash at bank of £50,000 or moreCash £568,986
- Incorporated five or more years agoIncorporated 14 September 2001
- Accounts past their due dateDue 30 September 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.
07
Timeline
- Confirmation statement duein 335 days
- Next accounts due28 days overdue
- Accounts period endNet assets £1.36m · small accounts
- Accounts period endNet assets £1.05m · small accounts
- Incorporated
08
Similar companies in London
- UENO-UK LIMITEDLondon · inc. Sept 2001
- LONDON & EUROPEAN TECHNOLOGIES LTD.London · inc. Sept 2001
- EEC ASSET MANAGEMENT LIMITEDLondon · inc. Sept 2001
- FOUR COMMUNICATIONS LIMITEDLondon · inc. Sept 2001
- HA INVESTORS LIMITEDLondon · inc. Sept 2001
- BMD CONSULTANTS LIMITEDLondon · inc. Sept 2001
All companies incorporated on 14 September 2001 · in Sept 2001.
09
Reminders for SUPERIOR SDI LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.