About
Costain Group Plc is a UK construction contractor with its registered office in London. Its main company at Companies House is COSTAIN GROUP PLC (company number 01393773, incorporated in 1978). Companies House lists its activities as road construction, head office activities, engineering services. It files payment practices reports with the government, so its payment record is shown below.
Key figures
- Average days to pay suppliers, Jan 2026 to Jun 2026
- 25 days
- 78% paid within 30 days, 18% not paid to agreed terms
- Government payment practices report
Payment record
Costain Group Plc pays suppliers in an average of 25 days: joint 25th fastest of 122 companies on our payment league table.
Costain Group Plc's average time to pay its suppliers in each six-month report, the first ending Dec 2018.
| Period ending | Average days | Paid within 30 days | Not paid to agreed terms |
|---|---|---|---|
| Dec 18 | 53 | 29% | 61% |
| Jun 19 | 36 | 59% | 39% |
| Dec 19 | 32 | 68% | 28% |
| Jun 20 | 38 | 62% | 32% |
| Dec 20 | 32 | 69% | 26% |
| Jun 21 | 25 | 77% | 19% |
| Dec 21 | 21 | 84% | 13% |
| Jun 22 | 19 | 85% | 12% |
| Dec 22 | 19 | 88% | 9% |
| Jun 23 | 18 | 89% | 9% |
| Dec 23 | 19 | 88% | 10% |
| Jun 24 | 20 | 85% | 13% |
| Dec 24 | 31 | 88% | 14% |
| Jun 25 | 22 | 82% | 12% |
| Dec 25 | 20 | 84% | 15% |
| Jun 26 | 25 | 78% | 18% |
Payment practices reports, Check Payment Practices (GOV.UK). Each point is one six-month report covering all suppliers.
Paid within 30 days, and not paid within the agreed terms, in each report. A rising late share is the warning sign to watch.
Payment practices reports, Check Payment Practices (GOV.UK). Each point is one six-month report covering all suppliers.
- 78%19%
Latest payment practices report.
Average days to pay
Costain Group Plc: 25 days
Latest report for each company on the payment league table.
Financial history
Turnover, profit, margin, net assets, cash and staff over 5 years, read from the company's own accounts at Companies House.
CR Signals
Construction Rating's checks on payment and financial health, built from public data. Not a credit score or a credit report. How CR Signals work
Company record4 green, 3 info
- Green
Active company.
Companies House · Last checked 19 Oct 2026
- Green
No insolvency cases on record.
Companies House · Last checked 19 Oct 2026
- Green
Accounts up to date (next due 30 Jun 2027).
Companies House · Last checked 19 Oct 2026
- Green
Confirmation statement up to date.
Companies House · Last checked 19 Oct 2026
- Info
Latest accounts: group, made up to 31 Dec 2025.
Companies House · Source date: 31 Dec 2025 · Last checked 19 Oct 2026
- Info
1 outstanding charge, newest 12 Sept 2012.
Companies House · Last checked 19 Oct 2026
- Info
Incorporated 12 Oct 1978.
Companies House · Source date: 12 Oct 1978 · Last checked 19 Oct 2026
Payment behaviour2 green, 3 info
- Green
Average 25 days to pay (Jan 2026 to Jun 2026). Reported by Costain Limited.
Payment practices report (GOV.UK) · Source date: 30 Jun 2026 · Last checked 19 Oct 2026
- Green
78% of invoices paid within 30 days, 19% in 31 to 60 days, 3% after 60 days. 18% not paid within agreed terms.
Payment practices report (GOV.UK) · Source date: 30 Jun 2026 · Last checked 19 Oct 2026
- Info
Average time to pay up from 20 to 25 days since the previous report (Jul 2025 to Dec 2025).
Payment practices report (GOV.UK) · Source date: 30 Jun 2026 · Last checked 19 Oct 2026
- Info
Uses retention clauses in construction contracts, not on the same terms as its own client retentions, retentions held equal 2% of payments (Jan 2026 to Jun 2026).
Payment practices report (GOV.UK) · Source date: 30 Jun 2026 · Last checked 19 Oct 2026
- Info
Not listed itself, but group company Costain Ltd holds a Bronze award (to 2026).
Office of the Small Business Commissioner · Last checked 19 Oct 2026
Latest accounts1 green
- Green
The auditor reported no material uncertainty about going concern in the accounts to 31 December 2025.
Companies House accounts · Source date: 31 Dec 2025 · Last checked 14 Oct 2026
Insolvency notices1 green
- Green
No Gazette insolvency notices in the last 24 months.
The Gazette · Last checked 19 Oct 2026
Projects (66)
S30054 Suppression and Fighting Techniques for EV & Hydrogen Fuelled Fires
Specialist Professional and Technical Service 3 (SPaTS3)
Regional Delivery Partnership - Delivery Integration Partner Framework (RDP-DIP)
S30037 Supervision of Construction of Energy Storage Systems Contract (Phase 3c)
HS2 Limited Tunnel and Lineside Mechanical and Electrical Systems
T0500 TOR3009 Connected and Autonomous Plant
T0614 Product Development and Innovation Services
664_21 Consultancy Services
58 more projects available
View the full project history for Costain Group Plc
Unlock Full Project ListIn the news
Headlines about Costain Group Plc from the construction press in the last 6 months. Links go to the original articles.
- Costain to continue seeking ability to make ‘political donations’
Construction News · 13 Oct 2026
- Costain welcomes plan to supercharge delivery of electricity grid
Construction Wave · 30 Sept 2026
- Costain appoints O’Grady to lead HS2 London tunnels JV
Construction News · 28 Sept 2026
- New director to lead Skanska Costain STRABAG JV
Construction Wave · 28 Sept 2026
- Costain lined up for £120m South Kensington Tube upgrade
Construction News · 22 Sept 2026
- Costain set to deliver South Kensington Tube station transformation
New Civil Engineer · 22 Sept 2026
- Costain doubles apprentice intake to 50
Construction Manager · 2 Sept 2026
- Costain doubles apprentice intake as project pipeline projects expands
New Civil Engineer · 1 Sept 2026
- Costain to deliver £150M Thames Water wastewater upgrade
New Civil Engineer · 27 Aug 2026
- Costain lands £150m Thames Water treatment works package
Construction News · 18 Aug 2026
Reviews (0)
Write a ReviewCompany Details
- Address
- Seventh Floor, 70 St Mary Axe, London, EC3A 8BE
- Website
- Visit website
- Companies House
- 01393773