COSTAIN INTEGRATED TECHNOLOGY SOLUTIONS LIMITED

Active
Company number 01439838Private limited companyIncorporated 1979

Key figures

£10,386,000
Net assets 2024

† COSTAIN INTEGRATED TECHNOLOGY SOLUTIONS LIMITED filed these accounts on paper, so Companies House publishes them only as a scanned image. The figures for the years marked † were read automatically from the scan and kept only where the statements add up (for example net assets equal total equity), but a reading error is still possible — check the original accounts at Companies House.

Ratios

2025

Sector comparison

SIC 26309

Where the company stands among the 376 active companies whose first SIC code is 26309 (Manufacture of communication equipment other than telegraph, and telephone apparatus and equipment).

Turnover£5,400,000
Lower than 74% · median £14,296,036 among 35 that publish turnover
Company age47.3 years
Older than 96% · median 11.6 years
Largest in this sector by net assets
  1. LEONARDO UK LTD£2.1bn
  2. TUNSTALL HEALTHCARE (UK) LIMITED£328.8m
  3. MITEL EUROPE LIMITED£141m
  4. KIRINTEC LIMITED£80.6m
  5. CHELTON LIMITED£59.9m
  6. L3HARRIS COMMUNICATIONS SYSTEMS UK LIMITED£42.8m
  7. ETL SYSTEMS LIMITED£40.9m
  8. FILTRONIC PLC£35.4m
  9. ESKAN ELECTRONICS LIMITED£30.2m
  10. DOMO TACTICAL COMMUNICATIONS (DTC) LIMITED£27.9m

Positions are approximate. Figures come from each company's latest accounts; money and employee figures are compared only with companies that filed accounts in pounds for a period ending in the last two and a half years and are not dormant, so those groups are smaller than 376. The line on each bar marks the median.

Summary: COSTAIN INTEGRATED TECHNOLOGY SOLUTIONS LIMITED

What kind of company is it?

COSTAIN INTEGRATED TECHNOLOGY SOLUTIONS LIMITED is a private limited company registered with Companies House under company number 01439838. It was incorporated on 25 Jul 1979. Its status is active. The registered office is in London (EC3A). Its nature of business (SIC 2007) is manufacture of communication equipment other than telegraph, and telephone apparatus and equipment (26309).

How is the company doing financially?

The latest accounts in the database are for 2025 (period ending 31 Dec 2025); the company files audit-exempt subsidiary. Turnover was £5,400,000. Profit for the year was £1,346,000. Figures are available for 2 financial years (2024–2025).

How does it compare with similar companies?

Compared with 376 active companies whose first SIC code is 26309: By turnover it ranks lower than 74% of the 35 that publish turnover (median £14,296,036). It is older than 96% of them (median age 11.6 years).

Does it supply the public sector?

The company is named as a supplier in 18 public contract award notices from 4 public sector buyers since 2018. Contracts awarded to it alone have a combined published value of £14.8m. Its most frequent buyer is National Highways (9 contracts). 2 of the awards are shared with other suppliers, typically framework agreements.

Who runs and controls the company?

One person with significant control is registered.

When are its next filings due?

The next accounts are due by 30 Sep 2027. The next confirmation statement is due by 3 Aug 2027.

Filed accounts2024–2025
2024 †2025 †
Turnover5,318,0005,400,000
Profit for the year712,0001,346,000
Total assets15,139,000—
Total liabilities4,414,000—
Net assets / total equity10,386,000—
Average number of employees589—

A dash (—) means no accounts were filed for that year or the item is not in the accounts; 0 is a zero stated in the accounts. Small companies usually file only a balance sheet, so the profit and loss account is often missing.

Public contracts

18 contracts

COSTAIN INTEGRATED TECHNOLOGY SOLUTIONS LIMITED is named as a supplier in 18 public contract award notices from 4 public sector buyers since 2018. The 14 contracts awarded to it alone with a published value add up to £14.8m. 2 awards are shared with other suppliers and not counted in that total.

Contracts per year
Main buyers4
National Highways
9 contracts · £4.7m
Highways England
4 contracts · £9m
HIGHWAYS ENGLAND COMPANY LIMITED
3 contracts · £1m
Highways Agency
2 contracts
Contracts
  1. National Highways Operational Technology Commercial Framework‡National Highways · shared by 36 suppliers, up to £600,000,000 in total · 5 lots
  2. Dartford & Hindhead HATMS Tunnel Systems‡National Highways · £3,286,751
  3. WIN MOTE TESTER LICENSES 24-26‡National Highways · £130,000
  4. ORT0163 - High Power Charge Point Strategy Feasibility project‡National Highways · £29,250
  5. ORT0108 - High-Powered Charging Feasibility for National Highways - Variation CR002National Highways · £5,488
Show 13 more
  1. ORT0108 - A High Powered Charge Point Strategy for NH Electric Vehicles - Variation CR001National Highways · £5,488
  2. ORT0135 - Provision Of Midas Outstations‡National Highways · £457,850
  3. License Keys for WinTester, MOTE and WinDev-SIM‡National Highways · £130,000
  4. ORT_0089O Parts and Goods Variation 1National Highways · £697,747 · 2 lots
  5. National Highways Operational Technology Commercial FrameworkHighways England · shared by 65 suppliers, up to £500,000,000 in total
  6. TMTii 01 - Order 16‡HIGHWAYS ENGLAND COMPANY LIMITED · £298,454
  7. TMTii01-Order 14.5 - CostainHIGHWAYS ENGLAND COMPANY LIMITED · £28,367
  8. TMTii 59 - M4 Signs and SignalsHighways England · £5,948,852
  9. TMTii 56 - Enhanced Network Camera Programme (ENCP)Highways England · £734,192
  10. Video analytics service platform‡HIGHWAYS ENGLAND COMPANY LIMITED · £696,401
  11. TMTii 01 - Order 9 - Costain‡Highways Agency
  12. A2/M2 Connected Corridor CAV TESTBED - TMTii 44: Award Notice.‡Highways England · £2,320,868
  13. TMTii 01 - Order 7 - Costain‡Highways Agency

From contract award notices on Contracts Finder (since 2016) and Find a Tender (since 2021), published by the Cabinet Office under the Open Government Licence v3.0. Values are as published by the buyer and usually cover the whole contract term; the total leaves out awards shared between several suppliers, where the published figure is a ceiling for all of them, placeholder values and single figures of £1 billion or more. Notices marked ‡ do not state a company number and were linked by an exact match on the registered name. Contracts below the publication thresholds and those of devolved buyers that publish elsewhere are not included.

History

5 events
  1. Financial year 2025 endedAccounts: turnover £5.4m
  2. Financial year 2024 endedAccounts: turnover £5.3m, net assets £10.4m, 589 employees
  3. Name changed to COSTAIN INTEGRATED TECHNOLOGY SOLUTIONS LIMITEDPreviously SIMULATION SYSTEMS LIMITED
  4. Costain Limited registered as a person with significant control
  5. Company incorporatedPrivate limited company

Dates as recorded at Companies House: incorporation, name changes, officer appointments and resignations, current persons with significant control, and the end of each financial year with figures in the database. Former persons with significant control are not listed.