Public sector supplier
Costain Limited public sector contracts
20 contracts held by Costain Limited end in the next 18 months. See them come up for renewal, and who else it supplies.
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- 37
- Contracts, last 12 months
- 128
- Contracts since 2021
- 33
- Public sector buyers
- £212k
- Median contract won outright
- 20
- Ending in 18 months
Hatched quarters fall only partly inside the next 18 months. Busiest whole quarter: Q4 2027.
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- 7 contracts end in the next 6 months
- Has won public contracts every year since 2021
- Won work from 11 new buyers in the last 12 months
37 contract awards published in the last 12 months, up from 25 the year before, and 128 since 2021 from 33 public sector buyers.
Costain Limited at a glance
Its most frequent public sector customer is National Highways Limited, with 30 contracts.
Most of its work falls under research and development.
80 of its contracts were awarded to it as the only named supplier; the remaining 48 are contracts shared with other suppliers, typically a place on a framework rather than work awarded outright.
Among the contracts it won outright where a value was published, the median is £212k.
Contracts won per quarter
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20 contracts expiring in the next 18 months
Each of these is a contract Costain Limited currently holds with an end date already published. If you compete with them, this is where the openings are. If you are the buyer, it is your renewal diary.
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Latest contracts won
The most recent awards, leaving out any already listed above.
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Where a contract names more than one supplier it is usually a framework. The published value is the ceiling for the whole framework, shared by everyone on it, not the amount awarded to Costain Limited.
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Most frequent buyers
- National Highways Limited30 contracts
- Highways England Company Limited18 contracts
- DfTc - Department for Transport10 contracts
- Crown Commercial Service10 contracts
- Espo9 contracts
- Nuclear Restoration Services (NRS) Limited6 contracts
- Department for Transport5 contracts
- Transport For London4 contracts
- Civil Aviation Authority3 contracts
- Wirral Borough Council2 contracts
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Most active categories
The CPV codes on this work
The codes buyers used when they awarded this work. Each one shows the whole UK market for it: who buys, who wins, and which contracts end soon.
- 73000000Research and development services and related consultancy services22
- 73220000Development consultancy services16
- 71311210Highways consultancy services5
- 71311200Transport systems consultancy services4
- 71314000Energy and related services3
- 45000000Construction work3
- 73300000Design and execution of research and development2
- 71800000Consulting services for water-supply and waste consultancy2
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Company record
Company number 00610201ActiveIncorporated 25 August 1958 (68 years 2 months ago)View on Companies House
Matched from the numbers on its own award notices, or its name and registered postcode. Status and incorporation date from the Companies House register file of 1 November 2026; the register itself is the up-to-date record.
Costain Limited, in short
Which public sector organisations does Costain Limited supply?
Across 128 contracts recorded since 2021, Costain Limited has supplied 33 UK public sector buyers. The most frequent are National Highways Limited (30 contracts), Highways England Company Limited (18 contracts), DfTc - Department for Transport (10 contracts).
What does Costain Limited supply to the public sector?
Its contracts fall mainly under research and development, architecture and engineering, construction works. Categories are derived from the CPV codes published on each award notice.
How many public sector contracts has Costain Limited won?
128 since 2021, of which 80 were awarded to it as the only named supplier and 48 are shared with other suppliers, usually a place on a framework. This counts award notices published to Find a Tender and Contracts Finder, so it is a record of published awards rather than of total revenue.
When do Costain Limited contracts come up for renewal?
20 contracts held by Costain Limited have an end date within the next 18 months, the earliest on 18 Dec 2026. End dates are published in the original award notices, so they are visible well before any re-tender is advertised.
Where does this information about Costain Limited come from?
From contract award notices published by the buyers themselves to Find a Tender and Contracts Finder under the Open Government Licence. Coverage starts in 2021 and is comprehensive from 2023, so contracts awarded before then, and any award not published to those portals, will not appear.
Suppliers doing similar work
Other research and development suppliers to National Highways Limited41
Suppliers with a profile that have won a contract from National Highways Limited under Research and development since 2021: its most frequent buyer with a page, and its main category. Shown when at least 3 qualify. Most contracts first.
How these figures are worked out
- The last 12 months: award notices published from 9 November 2025 to 8 November 2026, each contract counted once however many suppliers or rows it has. The same window is used everywhere on this page.
- Year on year: Its published contract awards have grown in each of the last two years. Contracts by publication date in the 12 months to 8 Nov 2026 and the two years before it, oldest first: 12, 25 and 37. A change of more than 15% counts as a rise or fall; each year needs at least 5 contracts.
- 7 contracts end in the next 6 months: Published end dates between 8 November 2026 and 8 May 2027, each contract counted once.
- Has won public contracts every year since 2021: At least one contract in every calendar year from 2021 to 2026, by award date (or publication date where the award date is later). Our records begin in 2021.
- Won work from 11 new buyers in the last 12 months: Buyers with a contract awarded to it and published since 9 November 2025, and none before. Counted by organisation, not by spelling.
- Since 2021: these figures count published award notices from January 2021 onward, the point at which this database begins, and are comprehensive only from 2023. Contracts awarded before then, and any work not published as a public award notice, do not appear. This is a record of published contracts, not of turnover.
- Most recent award: recorded 23 Oct 2026 (2 weeks ago).
Sources
Contract data on this page is sourced from Find a Tender and Contracts Finder and published under the Open Government Licence v3.0. Contains public sector information licensed under that licence. Figures cover contract award notices published from January 2021 onward, with comprehensive coverage from 2023. Earlier contracts, and any award not published to Find a Tender or Contracts Finder, will not appear. This page describes contracts published by public bodies and is not affiliated with Costain Limited. Relative dates (such as “in 6 days”) count from 8 November 2026, when this page was built.
How to cite this data
Tender Radar (2026) Costain Limited public sector contracts [Dataset]. Professor AI. Available at: https://tender-radar.co.uk/suppliers/costain-limited (Accessed: 8 November 2026).
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