STS DEFENCE LIMITED
Company number 03193298 · Monitor this company
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Shareholders' funds
£8,375,856
Balance sheet as at 2023-12-31
Overview
- Company type
- Private Limited Company
- Incorporated
- 1996-05-01
- Employees
- 157 (2023 accounts · was 158 in 2023)
- Registered office
- Sts Defence Limited, Mumby Road, Gosport, England, PO12 1AF
- Postcode
- PO12 1AF
- Capital
- 414 GBP
- Accounts category
- Full
Accounts
- Last made up to
- 2025-12-31
- Next due by
- 2027-09-30
- Financial year end
- 31 December
Confirmation statement
- Last statement dated
- 2026-03-12
- Next due by
- 2027-03-26
Nature of business (SIC)
- 32990 Other manufacturing not elsewhere classified
- 43210 Electrical installation
- 61900 Other telecommunications activities
- 84220 Defence activities
Officers 9 current · 13 resigned
Group structure 1 subsidiary
Controlled by CICOR UK LTD — since 2025-03-28
Controlled by KEY TECHNOLOGIES LIMITED — since 2016-04-06
-
S R ANTENNA SYSTEMS LIMITED Dissolved
From persons-with-significant-control filings on the public register.
Public contracts won 2
£2,179,531 total awarded value where published.
Contains public sector information licensed under the Open Government Licence v3.0 (Contracts Finder).
Data protection registration
Registered with the ICO as a data protection fee payer — ZA312555 (Tier 2), registered since 2018.
Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.
Contact details
- Website
- sts-defence.co.uk
STS Defence are specialists in mission-critical communications and intelligent systems and operate in the defence, marine, aerospace and nuclear sectors.
Previous company names
| Name | Date changed |
|---|---|
| STS BASYS LIMITED | 2001-08-30 |
| SPACE TECHNOLOGY SYSTEMS LIMITED | 2001-06-27 |
| JADEMOSS TRADING LIMITED | 1996-07-15 |
Previous registered addresses 3
| Address | Changed on |
|---|---|
| PO BOX 22, BIRMINGHAM ROAD, STRATFORD UPON AVON, WARWICKSHIRE CV37 0AS | 2005-01-14 |
| AMERY HOUSE, STEEPLE DRIVE, ALTON, HAMPSHIRE GU34 1TN | 2004-04-26 |
| BRIDGE HOUSE, 181 QUEEN VICTORIA STREET, LONDON, EC4V 4DD | 1996-06-05 |
Among its peers
Top 1%
by shareholders' funds, of 183 similar companies in PO
The largest employer among its local peers (157 staff).
Among the oldest 25% of its local peers, trading since 1996.
No.1 of the largest other manufacturing not elsewhere classified companies in Portsmouth →
Competitors Portsmouth
-
6. EE GLASS LTD
This company ranks 1 among other manufacturing not elsewhere classified in Portsmouth.
The class of 1996
50%
of the 359 companies in this sector incorporated in 1996 are still active today; 47% have since been dissolved.
A fact about the year, not a forecast for this company.
Property in England & Wales 1 title
- Leasehold
- 1
- Most recent registration
- 2011-04-21
- Where
- Hampshire
| Title number | County | Tenure | Registered | Price paid |
|---|---|---|---|---|
| HP736820 | Hampshire | Leasehold | 2011-04-21 | — |
For addresses and the authoritative register entry, use HM Land Registry's official search (£3 per title).
Information produced by HM Land Registry. © Crown copyright 2026. Dataset as at 2026-08.
Businesses that transport or deal in waste must register with the Environment Agency. You can check this company on the official register of waste carriers, brokers and dealers.