Köster GmbH: public contracts won
Köster GmbH (koester-bau.de) won 12 public contract awards from 12 public buyers between 2023-12-12 and 2026-09-15; the 7 it won alone that state a value total €94.0M. Source: Arcadium Data, data as of .
Company
| Field | Value |
|---|---|
| Registry number | DE231871970 |
| Register | VAT |
| Website | koester-bau.de |
Köster GmbH is linked to its register entry through the registration or VAT number stated on its award notices; the website comes from the register or the notices.
Contracts ending in the next 18 months
| Ends | Contract | Buyer | Value | End date basis |
|---|---|---|---|---|
| 2026-12-21 | Herstellung einer Oberflächenabdichtung DK II - 3. und 4. Bauabschnitt | USB Bochum GmbH (DE) | €5.2M | end date stated |
| 2027-04-10 | Neubau Logistikzentrum Eltmann | TenneT TSO GmbH (DE) | n/a | signed + duration |
| 2027-10-12 | Neuerrichtung der zentralen Unterbringungseinrichtung für Flüchtlinge (ZUE), Generalunternehmerleistungen | Westfälische Bauindustrie GmbH (DE) | €19.7M | end date stated |
| 2027-10-31 | Projekt Donatus Quartiersbebauung | Bauen für Menschen GmbH (DE) | €32.7M | end date stated |
Contracts ending = award notices naming Köster GmbH whose contract period ends in the next 18 months: the end date the notice states, else its start or signature date plus the stated duration. 4 contracts.
Awards per month
Contract award notices naming Köster GmbH as a winner, by publication month, 2023-11 to 2026-10.
Top public buyers
Sectors (CPV divisions)
| Sector | CPV | Awards |
|---|---|---|
| Construction work | 45 | 12 |
Buyer countries
| Country | Awards |
|---|---|
| Germany | 12 |
Recent awards
Value = the awarded value the notice states, in EUR (converted at the notice date); framework agreements show none (their value is a ceiling, not spend). A notice with several winners or lots states one total for all of them: it is shown per notice in the table but left out of "value won alone". Matched to koester-bau.de by company name, country and registry number where the notice states one.
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Source: Arcadium Data tenders database, 3,811,022 official public procurement notices from EU TED, UK Find a Tender, UK Contracts Finder and national procurement boards, read through their open-data services (no logins). Winners that could be a private person (sole traders) are withheld; buyers are public bodies. Data as of 2026-10-27.
Questions
How many public contracts has Köster GmbH won?
Köster GmbH won 12 public contract awards published between 2023-12-12 and 2026-09-15, from 12 public buyers (official notices in EU TED and UK Find a Tender, as of 2026-10-27).
Who are Köster GmbH's biggest public-sector customers?
The public buyers that awarded Köster GmbH the most contracts are Bau- und Liegenschaftsbetrieb NRW Bielefeld (1), Bauen für Menschen GmbH (1) and Baugesellschaft UMG mbH (1) (awards, as of 2026-10-27).
What does Köster GmbH supply to the public sector?
Most of Köster GmbH's awards are in Construction work (CPV 45) (12) as of 2026-10-27.
What is the value of Köster GmbH's public contracts?
The 7 awards Köster GmbH won alone that state a value add up to €94.0M; awards shared with other winners state one total for all and are not counted (as of 2026-10-27).
Cite as: Arcadium Data, "Köster GmbH public tenders won: 12 contract awards", https://arcadiumdata.io/tenders/winners/koester-bau.de/, data as of 2026-10-27.