Active15220237Private limited companyWindsor

SDX HOLDING LIMITED

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date.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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Registered activity: Business and domestic software development (SIC 62012). We’re building product and service lists for UK companies. Get this one when it’s ready.

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01

Summary

Generated from filed data · no estimates

SDX HOLDING LIMITED is an active private limited company (company number 15220237) incorporated on 18 October 2023, registered in Windsor. Its registered activity is business and domestic software development (SIC 62012). Latest small accounts cover the period ending 31 December 2025, showing net assets of £1.04m and cash of £45k, with 2 employees on average. Net assets fell 12% on the prior period (£1.18m).

Peer position · net assets

By net assets it sits in the top quarter of 1,268 comparable companies in Reading (median £3,333, upper quartile £48k).

02

Ownership and control

0 active · 2 other

No active person with significant control is registered.

  • persons with significant control statement · since 20 December 2023
  • Mr Charles Martin Nicholls
    Individual · since 18 October 2023 · ceased 20 December 2023
    • owns 25–50% of shares
    • holds 25–50% 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
18 October 20233 yrs ago
Next accounts due
30 September 2027in 342 days
Confirmation statement due
1 November 2026in 9 days

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

04

Activity

SIC 62012
Business and domestic software development
Accounts type
Total Exemption Full
Size band
MicroCompanies Act thresholds
05

Financials

2 periods on record · latest ending 31 December 2025
Net assets
£1.04m
−12%vs Dec 2024
Cash at bank
£45k
−92%vs Dec 2024
Turnover
Not reported
Employees
2
No changevs Dec 2024
Net assets
£1.04m
Cash at bank
£45k
Average employees
2
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 December 2025£1.04m£45k—£103k——2
31 December 2024£1.18m£532k—£14k——2
Current ratio11.38Current assets ÷ creditors within one year
Cash per employee£22kCash ÷ 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

Facts from the register · no rating
  • Net assets above zeroNet assets £1,038,907 at 31 December 2025
  • Current assets at least 1.5× creditors within one yearCurrent ratio 11.38
  • Incorporated two to five years agoIncorporated 18 October 2023

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

Newest first
  1. Next accounts duein 342 days
  2. Confirmation statement duein 9 days
  3. Accounts period endNet assets £1.04m · small accounts
  4. Accounts period endNet assets £1.18m · small accounts
  5. Incorporated
08

Similar companies in Reading

Same activity (business and domestic software development), closest in incorporation date
09

Reminders for SDX HOLDING LIMITED

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.