COSTAIN GROUP PLC

Active
Company number 01393773Public limited companyIncorporated 1978

Key figures

£258,200,000+9.5%
Net assets 2025
+6.7%
Average annual growth 2021–2025
0100 m200 m300 m20212022202320242025

COSTAIN GROUP PLC files its accounts at Companies House on paper. The figures here are for the whole group, taken from its annual financial report in the structured ESEF format (published on the FCA National Storage Mechanism, collected by filings.xbrl.org).

Ratios

2025

Sector comparison

SIC 42110

Where the company stands among the 3,393 active companies whose first SIC code is 42110 (Construction of roads and motorways).

Turnover£1,045,700,000
Higher than 97% · median £19,536,000 among 148 that publish turnover
Net assets£258,200,000
Higher than 99% · median £28,205
Total assets£561,900,000
Higher than 99% · median £92,034
Cash£189,300,000
Higher than 99% · median £59,601
Company age48.1 years
Older than 98% · median 6.4 years
Largest in this sector by net assets
  1. COSTAIN GROUP PLC£258.2m
  2. BAM NUTTALL LIMITED£233m
  3. COSTAIN LIMITED£153.5m
  4. F M CONWAY LIMITED£151m
  5. KIER TRANSPORTATION LIMITED£122.9m
  6. COSTAIN ENGINEERING & CONSTRUCTION LIMITED£112m
  7. RINGWAY INFRASTRUCTURE SERVICES LIMITED£79.6m
  8. FERROVIAL CONSTRUCTION HOLDINGS LIMITED£78.3m
  9. FUTURE VALLEYS PROJECT CO LIMITED£73.7m
  10. FUTURE VALLEYS HOLD CO LIMITED£73.7m

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 3,393. The line on each bar marks the median.

Summary: COSTAIN GROUP PLC

What kind of company is it?

COSTAIN GROUP PLC is a public limited company registered with Companies House under company number 01393773. It was incorporated on 12 Oct 1978. Its status is active. The registered office is in London (EC3A). Its nature of business (SIC 2007) is construction of roads and motorways (42110), activities of head offices (70100), other engineering activities (71129).

How is the company doing financially?

The latest accounts in the database are for 2025 (period ending 31 Dec 2025); the company files group accounts. Turnover was £1,045,700,000. Profit for the year was £37,300,000. Net assets were £258,200,000, up 9.5% on the previous year. Cash at bank and in hand was £189,300,000. Total assets were £561,900,000 and total liabilities £303,700,000. Figures are available for 5 financial years (2021–2025).

How does it compare with similar companies?

Compared with 3,393 active companies whose first SIC code is 42110: By turnover it ranks higher than 97% of the 148 that publish turnover (median £19,536,000). By net assets it ranks higher than 99% of them (median £28,205). By total assets it ranks higher than 99% of them (median £92,034). By cash it ranks higher than 99% of them (median £59,601). It is older than 98% of them (median age 6.4 years).

Does it supply the public sector?

The company is named as a supplier in 2 public contract award notices from 2 public sector buyers since 2020. Contracts awarded to it alone have a combined published value of £8.4m.

What do public registers and reports show?

Its gender pay gap report for 2025/26 shows median hourly pay for women 23.4% lower than for men. It has modern slavery statements on the government registry for 7 years.

Who runs and controls the company?

1 of 3 registered charges are outstanding.

When are its next filings due?

The next accounts are due by 30 Jun 2027. The next confirmation statement is due by 6 Mar 2027.

Dividends

from the accounts
2025

Dividends paid in the financial year: £7,300,000 (20% of the profit for the year).

History
2025£7,300,000
2024£3,200,000
2023£1,100,000
Filed accounts2021–2025
20212022202320242025
Turnover1,135,200,0001,421,400,0001,332,000,0001,251,100,0001,045,700,000
Profit for the year-5,800,00025,900,00022,100,00030,600,00037,300,000
Cash at bank and in hand159,400,000123,800,000164,400,000158,500,000189,300,000
Total assets532,400,000482,200,000468,600,000547,200,000561,900,000
Total liabilities333,400,000271,000,000249,200,000311,500,000303,700,000
Net assets / total equity199,000,000211,200,000219,400,000235,700,000258,200,000
Dividends paid——1,100,0003,200,0007,300,000

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

2 contracts

COSTAIN GROUP PLC is named as a supplier in 2 public contract award notices from 2 public sector buyers since 2020. Their combined published value is £8.4m.

Contracts per year
Main buyers2
Transport for London
1 contract · £8.2m
THE DEPARTMENT FOR TRANSPORT
1 contract · £200k
Contracts
  1. CCTV In-Station System Hardware and Software MaintenanceTransport for London · £8,179,672 · runs until Mar 2028
  2. MARITIME MODE COMMERCIAL ADVISORTHE DEPARTMENT FOR TRANSPORT · £200,000

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. Contracts below the publication thresholds and those of devolved buyers that publish elsewhere are not included.

Statutory reporting

Gender pay gap2025/26
Median hourly pay
women 23.4% lower
Mean hourly pay
women 17.7% lower
Median bonus pay
women 39.1% lower
Employer size
1000 to 4999 employees
Lower pay quarter47% womenLower middle30% womenUpper middle22% womenUpper pay quarter16% women
Earlier years (3)
Year
Median hourly pay
Mean hourly pay
2024/25
women 26.7% lower
women 21.1% lower
2023/24
women 24.4% lower
women 15.8% lower
2022/23
women 26.6% lower
women 18.7% lower

A positive gap means women's average hourly pay is lower than men's across the whole employer; it is not a comparison of pay for the same work. View on the Gender pay gap service

Modern slavery statements7
2026
Statement · summary on GOV.UK · group statement
2025
Statement · summary on GOV.UK · group statement
2024
Statement · summary on GOV.UK · group statement
Earlier years (4)
2023
Statement · summary on GOV.UK · group statement
2022
Statement · summary on GOV.UK · group statement
2021
Statement · summary on GOV.UK · group statement
2020
Statement · summary on GOV.UK · group statement (COSTAIN OIL, GAS & PROCESS LIMITED)

Figures the company reported itself to the government's Check payment practices service, Gender pay gap service and Modern slavery statement registry (Open Government Licence v3.0). Only large companies and employers with 250 or more staff have to report, so most companies have nothing here.

History

6 events
  1. Financial year 2025 endedAccounts: turnover £1bn, net assets £258.2m
  2. Financial year 2024 endedAccounts: turnover £1.3bn, net assets £235.7m
  3. Financial year 2023 endedAccounts: turnover £1.3bn, net assets £219.4m
  4. Financial year 2022 endedAccounts: turnover £1.4bn, net assets £211.2m
  5. Financial year 2021 endedAccounts: turnover £1.1bn, net assets £199m
  6. Company incorporatedPublic 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.