Supplier

Costain Ltd public sector contracts

Large businessLondonLondonCompanies House 00610201

Contracts won: 14
In the last 12 months: 7
Buyers: 8
Value, last 12 months: £11.4bn

Values as award notices state them; frameworks can include a ceiling rather than money spent.

Contracts won

Contract	Trade	Value	Bids	Awarded
South Kensington Station Capacity Upgrade Design and Build London Underground Limited	Construction	£85m	—	17 Sept 2026
National Framework for Civil Engineering, Infrastructure and Enabling Works 2026 Yorkshire Purchasing Organisation · 1 of 13 lots	Construction	£4.29bn	—	15 Sept 2026
Infrastructure Improvement Framework Transport for London · ends 2 Jul 2028	Construction	—	—	22 Apr 2026
Construction Professional Services 2 Crown Commercial Service · 1 of 11 lots · ends 18 Jun 2030	Architecture and engineering	£3.5bn	72	7 Apr 2026
North West Contractor Framework Wirral Council · 2 of 13 lots · ends 31 Mar 2030	Construction	—	—	19 Mar 2026
100760 Landulph Tertiary Connection National Grid Electricity Transmission plc	Construction	£9.5m	—	29 Jan 2026
Transport Technology Crown Commercial Service · 8 of 14 lots · ends 22 Oct 2027	Uniforms, clothing and PPE	—	—	13 Oct 2025
Highways Services Strategic Delivery Partner (SDP4) City of Bradford Metropolitan District Council	Architecture and engineering	—	1	—
National Grid Substation Construction National Grid UK Limited · 3 of 3 lots	Construction	—	—	—
ID6064 Capital Investment Consultancy Services Framework Mag Airport Limited · 1 of 11 lots	Architecture and engineering	—	9	—
West Winch Housing Access Road Norfolk County Council	Construction	—	3	—
Trawsfynydd Reactor Buildings Height Reduction Nuclear Restoration Services Limited	Construction	—	3	—
Infrastructure Delivery Partnership (IDP) Sellafield Limited · 1 of 4 lots	Construction	—	—	—
Decommissioning & Asbestos Removal (DAR) framework Nuclear Restoration Services Limited	Construction	—	—	—

Main buyers

Contracts won from each

Trades

Contracts won in each

Data from public contract notices on Find a Tender and Contracts Finder. Something wrong? Tell us and we will correct it. We correct errors, but do not remove public award data.