PLEXTEK SERVICES LIMITED

Company number 09826669 ·

Active

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Shareholders' funds

£8,151,602

Balance sheet as at 2025-03-31

View full accounts →

What it does

The Group's principal activity is that of a premier provider of bespoke design and engineering services for advanced sensing, communications and data exploitation products and systems.

The company's own description, from its latest filed accounts.

Overview

Company type
Private Limited Company
Incorporated
2015-10-15
Employees
93 (2025 accounts · was 85 in 2024)
Registered office
The Plextek Building London Road, Great Chesterford, Saffron Walden, United Kingdom, CB10 1NY
Postcode
CB10 1NY
Capital
4 GBP
Accounts category
Group
Charges
0 outstanding

Accounts

Last made up to
2025-03-31
Next due by
2026-12-31
Financial year end
31 March

Confirmation statement

Last statement dated
2025-10-14
Next due by
2026-10-28
View filing history →

Nature of business (SIC)

  • 71122 Engineering related scientific and technical consulting activities

Officers 7 current · 6 resigned

Appointed 2023-07-25
Appointed 2021-10-26
COMPANY DIRECTOR Appointed 2015-10-19
DAVID JOHN COX Secretary
Appointed 2015-10-19
Appointed 2015-10-19

View all officers and resignations →

Public contracts won 4

£1,726,237 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 — ZA229894 (Tier 2), registered since 2017.

Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.

Contact details

Website
plextek.com

Plextex is an engineering and consulting company, with over 35 years of experience working with governments and industry in radar, comms and data systems. Based in Cambridge, UK.

Among its peers

Top 1%

by shareholders' funds, of 228 similar companies in CB

2nd largest employer among its local peers (93 staff).

Among the oldest 25% of its local peers, trading since 2015.

No.1 of the largest engineering related scientific and technical consulting activities companies in Cambridge →

Competitors Cambridge

This company ranks 1 among engineering related scientific and technical consulting activities in Cambridge.

Full league table →

The class of 2015

34%

of the 1,486 companies in this sector incorporated in 2015 are still active today; 62% have since been dissolved.

A fact about the year, not a forecast for this company.

Survival rates for every incorporation year →

Property in England & Wales 3 titles

Freehold
3
Most recent registration
2023-12-22
Price paid, where recorded
£3,575,000
Where
Essex (3)
Title numberCounty Tenure RegisteredPrice paid
EX415927 Essex Freehold 2023-12-22
EX542136 Essex Freehold 2023-12-22 £3,575,000
EX584745 Essex Freehold 2023-12-22

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.