At a glance · for buyers and watchdogs
Costain Ltd has won £5.4bn across 39 public-sector buyers, with 46 live contracts. No active Companies House risk flags.
Why: top buyer National Highways at 41% · 28% in Construction work · 0 active risk flags · 0 modifications.
ESG & policies vault · 0/5
Key governance & sustainability policies. Published documents link out; missing ones are greyed.
Capabilities
What this supplier does, where they sit, who they sell to.
- Infrastructure Improvement Framework
- Delivery Integration Partnership (DIP)
- HS2 Limited Tunnel and Lineside Mechanical and Electrical Systems
- Preston Western Distributor Road & North West Preston East West Link Road
- LPS CAS - Lancaster South Growth Catalyst Highway Infrastructure Early Supplier Involvement - RFQ 15301428
- Reactor Buildings Height Reduction (EXECUTION phase)
Extracted automatically from costain.com on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
Case studies
Delivery stories the supplier has published, with sector and outcome.
No case studies yet
Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.
Buyer references
Named public-sector contacts who have agreed to act as a reference.
No buyer references yet
Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.
Accreditations & memberships
Independently issued. Verification dates cross-checked against issuer registers.
No accreditations recorded
B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.
KPI performance
Delivery, budget and satisfaction scores reported quarterly by buyers.
No verified KPI scores yet
Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.
Contracts · 46 live · 85 historic
Pulled from Contracts Finder & Find a Tender. Most recent first.
| Title | Buyer | CPV | Awarded | Value | Term | Status |
|---|---|---|---|---|---|---|
| YORKSHIRE WATER SERVICES LIMITED | — | 01 Jul 2026 | £4.0m | 4 yrs | pending | |
| National Highways | 73220000 | 13 May 2026 | £212k | 11 mo | Live | |
| Port of Dover | 45000000 | 04 May 2026 | — | 6 yrs | Live | |
| Blackburn With Darwen Borough Council | 71311200 | 01 May 2026 | £150k | 2 yrs | Live | |
| Transport for London | — | 15 Jun 2026 | £700.0m | 2 yrs | pending | |
| Transport for London | — | 01 Jun 2026 | £700.0m | 2 yrs | pending | |
| National Highways | 73220000 | 21 Apr 2026 | £304k | 1.5 yrs | Live | |
| National Highways | 73220000 | 02 Apr 2026 | £955k | 3 yrs | Live | |
| Wirral Council | — | 01 Apr 2026 | — | 4 yrs | pending | |
| National Highways | 73220000 | 01 Apr 2026 | £200k | 9 mo | Live |
Top buyers · 39 buyers · top 3 = 86%
Share of awarded value. Concentration fires above 40% for any single buyer.
Category mix
CPV-division share of last-12m awarded value.
Geography
Distribution of awarded value by buyer region.
Peers
Suppliers with overlapping CPVs & buyers (last 24m). Costain Ltd highlighted.
| Supplier | SME? | Awarded · 24m | Contracts |
|---|---|---|---|
CO Costain Ltd | No | £1.6bn | — |
| No | £140.0m | 1 | |
| No | £28.1m | 2 | |
| No | £18.8m | 2 | |
| No | £12.5m | 1 | |
| No | £12.0m | 1 |
Red flags · 0 active
Automated scan of Companies House status, charges and insolvency records.
Compliance scorecard
Derived from Companies House filings — not a full supplier-assurance check.
Modifications
Variations to awarded contracts logged under Procurement Act 2023 s.74.
No modifications recorded
No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.
News mentions
UK trade press & nationals, matched to this supplier.
No news mentions found
We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.
Companies House
Live sync — registered details, directors, PSC and SIC codes.
Registered details
- Company no.
- 00610201
- Status
- Active
- Type
- Private limited
- Incorporated
- 25 Aug 1958
- Reg. office
- Seventh Floor, 70 St Mary Axe, London, EC3A 8BE
- SIC codes
- 42110 · 42130 · 42910 · 42990
- Last accounts
- 31 Dec 2025
- Next accounts due
- 30 Sept 2027
Directors & PSC
- MUMFORD, Peter Leslie — directorAppointed 05 Jan 2026
- MORRIS, Paul Anthony — directorAppointed 08 Jul 2024
- WILLCOCK, Jonathan Kevin — directorAppointed 02 Apr 2024
- GEOGHEGAN, Nicole Ann — secretaryAppointed 05 Jul 2022
- GEOGHEGAN, Nicole Ann — directorAppointed 05 Jul 2022
- WILLIS, Helen Margaret — directorAppointed 30 Nov 2020
- Costain Civil Engineering Limited — person with significant controlownership of shares 75 to 100 percent · voting rights 75 to 100 percent · right to appoint and remove directors
Financial
Filed accounts from Companies House.
No financial filings on record
Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.
Org tree
Group structure and ownership.
Independent. No parent company or subsidiaries recorded at Companies House for this entity.
Social value · 1/5
Commitments mapped to the Government Social Value Model themes. Each is tagged self-reported or from the website.
Extracted automatically from costain.com on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.