Stadt Karlsruhe Tiefbauamt: public contracts and tenders
Stadt Karlsruhe Tiefbauamt awarded 16 public contracts worth €43.2M where a value is stated since 2024-07-29; the construction work contract held by Sempa Systems GmbH ends on 2026-12-09 (signed + duration). Source: Arcadium Data, data as of .
Awarded value = the award values the notices state (EUR at the notice date), 13 of 16 awards; framework agreements (a ceiling, not spend) and implausible values are left out.
Buyer
| Field | Value |
|---|---|
| Name | Stadt Karlsruhe Tiefbauamt |
| Country | Germany |
| Buyer type | Local authority |
| City | Karlsruhe |
| Sources | service.bund.de (Germany), EU TED |
Top suppliers
| Supplier | Registry number | Website | Awards | Value won alone |
|---|---|---|---|---|
| Blackstone Industrie- & Gebäudetechnik GmbH | blackstone-gmbh.de | 1 | €1.4M | |
| Diehl GmbH | DE812663696 VAT | diehl-apleona-wolfferts.com | 1 | €642k |
| GIGA Gesellschaft für Industrie- und Gebäudeautomation mbH | giga-automation.de | 1 | €470k | |
| Hanisch Gerüstbau GmbH | hanisch-geruestbau.de | 1 | €99,363 | |
| Marquardt Dächer & Fassaden | marquardt.gmbh | 1 | €306k | |
| Sempa Systems GmbH | sempa.de | 1 | €84,681 | |
| Gebrüder Peters Heilbronn GmbH | 1 | €3.1M | ||
| MOSER GmbH & Co. KG | 1 | €3.3M | ||
| Schempp GmbH & Co. KG | 1 | €19.3M | ||
| Solenis Germany GmbH & Co. KG | 1 | €1.6M |
Suppliers named on Stadt Karlsruhe Tiefbauamt's award notices; registry number and website where the supplier is linked to its register entry. Winners that could be a private person are withheld.
Contracts ending in the next 18 months
| Ends | Contract | Current holder | Value | End date basis |
|---|---|---|---|---|
| 2026-12-09 | Technische Gase, Druckluft | Sempa Systems GmbH | €84,681 | signed + duration |
| 2027-01-15 | Rohbauarbeiten | MOSER GmbH & Co. KG | €3.3M | end date stated |
| 2027-04-06 | Gebäudeautomation | GIGA Gesellschaft für Industrie- und Gebäudeautomation mbH | €470k | signed + duration |
| 2027-04-07 | Sanitärtechnik | Diehl GmbH (VAT DE812663696) | €642k | signed + duration |
| 2027-04-07 | Heizungstechnik, Kältetechnik | Blackstone Industrie- & Gebäudetechnik GmbH | €1.4M | signed + duration |
| 2027-04-07 | Lüftung | €1.1M | signed + duration | |
| 2027-06-01 | Klärwerk Karlsruhe, Lieferung von Flockungshilfsmittel (Polymer) für die Klärschlammentwässerung | Solenis Germany GmbH & Co. KG | €1.6M | end date stated |
| 2027-10-22 | Umgestaltung Kreuzung Kriegsstr./ Reinhold-Frank-Str./ Brauerstr. und Kreuzung Brauerstr./ Gartenstr. | Bietergemeinschaft Johann Joos Tief- und Straßenbauunternehmung GmbH & Co. KG / Diringer & Scheidel Bauunternehmung GmbH & Co. KG Industriestraße 1 79258 Hartheim | €11.0M | end date stated |
| 2027-11-05 | Dachabdichtungsarbeiten | Marquardt Dächer & Fassaden | €306k | end date stated |
| 2027-11-19 | Gerüstarbeiten | Hanisch Gerüstbau GmbH | €99,363 | end date stated |
End dates checked against the official notice: 99% right (n=100, 95% CI 94%-100%, 2026-10-26; method).
Award notices of Stadt Karlsruhe Tiefbauamt 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. 10 contracts; a framework's value is a ceiling and is not shown.
Open calls for tender
No open call for tender from Stadt Karlsruhe Tiefbauamt today.
Spend by sector (CPV divisions)
| Sector | CPV | Awards | Awarded value |
|---|---|---|---|
| Construction work | 45 | 10 | €39.8M |
| Chemical products | 24 | 1 | €1.6M |
Award notices with a named winner, by the main CPV code; value = the total the notices state, in EUR at the notice date; framework agreements (a ceiling, not spend) and implausible values are left out.
Recent awards
| Published | Contract | Winners | Value |
|---|---|---|---|
| 2026-10-08 | Gerüstarbeiten | Hanisch Gerüstbau GmbH | €99,363 |
| 2026-10-08 | Dachabdichtungsarbeiten | Marquardt Dächer & Fassaden | €306k |
| 2026-09-10 | Sanitärtechnik | Diehl GmbH | €642k |
| 2026-09-10 | Stark- und Schwachstrominstallationen | Gebrüder Peters Heilbronn GmbH | €3.1M |
| 2026-09-10 | Heizungstechnik, Kältetechnik | Blackstone Industrie- & Gebäudetechnik GmbH | €1.4M |
| 2026-09-10 | Gebäudeautomation | GIGA Gesellschaft für Industrie- und Gebäudeautomation mbH | €470k |
| 2026-09-08 | Technische Gase, Druckluft | Sempa Systems GmbH | €84,681 |
| 2026-06-22 | Umgestaltung Kreuzung Kriegsstr./ Reinhold-Frank-Str./ Brauerstr. und Kreuzung Brauerstr./ Gartenstr. | €11.0M | |
| 2025-10-21 | Rohbauarbeiten | MOSER GmbH & Co. KG | €3.3M |
| 2025-08-19 | Neugestaltung Kaiserstraße, BA 2 Ost und West (6 Gewerke) | Schempp GmbH & Co. KG | €19.3M |
Follow this buyer free
Get Stadt Karlsruhe Tiefbauamt's new calls for tender, awards and contracts ending in a free weekly email (Tender Radar free tier: a saved search for this buyer's name in Germany). The same data is in the REST API and the MCP server.
Sources: service.bund.de (Germany), EU TED, read through their open-data feeds without logging in. Buyer = contracting authority as named on the notice; notices are grouped by the normalised name and country.
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 Stadt Karlsruhe Tiefbauamt awarded?
Stadt Karlsruhe Tiefbauamt published 16 contract award notices between 2024-07-29 and 2026-10-08; the 13 that state a value add up to €43.2M (official notices, as of 2026-10-27).
Who are Stadt Karlsruhe Tiefbauamt's biggest suppliers?
By contract awards: Blackstone Industrie- & Gebäudetechnik GmbH (1), Diehl GmbH (1) and GIGA Gesellschaft für Industrie- und Gebäudeautomation mbH (1) (as of 2026-10-27). Winners that could be a private person are not named.
Which Stadt Karlsruhe Tiefbauamt contracts end soon?
10 contracts awarded by Stadt Karlsruhe Tiefbauamt end in the next 18 months. The soonest with a named holder is the construction work contract held by Sempa Systems GmbH, ending on 2026-12-09 (signed + duration) (as of 2026-10-27).
Does Stadt Karlsruhe Tiefbauamt have open tenders now?
No call for tender from Stadt Karlsruhe Tiefbauamt is open today in the official notices we read (as of 2026-10-27). Its 28 earlier calls are counted on this page.
What does Stadt Karlsruhe Tiefbauamt buy?
Most of Stadt Karlsruhe Tiefbauamt's awards are in Construction work (CPV 45) (10) and Chemical products (CPV 24) (1) (as of 2026-10-27).
Cite as: Arcadium Data, "Stadt Karlsruhe Tiefbauamt tenders and contracts: 16 awards, suppliers, contracts ending", https://arcadiumdata.io/tenders/buyers/stadt-karlsruhe-tiefbauamt-de/, data as of 2026-10-27.