The database of public procurement
Contracting authority
Tiefbauamt
Tiefbauamt has awarded 33 contracts to 31 companies (as of 3 Oct 2026).
As of: · Source: official notices (Datenservice Öffentlicher Einkauf, CC0), EU Official Journal (TED) and procurement portals · How we count
Tenders since 2009
By year of publication, each notice once. Up to 2023 from the EU Official Journal (TED, only above the EU thresholds, buyer key “tiefbauamt”), from 2024 from the DÖE, so that nothing in 2022 and 2023 is counted twice. Portals: open tenders from procurement portals beyond the DÖE, since 23 Sep 2026. Archive: national tenders from snapshots of the portals in the Internet Archive and from official gazettes, all in the past; an EU-wide procedure can appear there and in TED. The current year is incomplete.
Lots per quarter, 12 quarters
All stages, by quarter of publication.
Who wins here
| Company | Trade | Awards | Volume | Latest |
|---|---|---|---|---|
| Locher Bauunternehmer AGZürich | Building shell, Civil engineering, earthworks | 2 | 29 Apr 2011 | |
| Lerch AG BauunternehmungWinterthur | Civil engineering, earthworks | 2 | 15 Apr 2011 | |
| JPF Construction SABulle | Building shell | 1 | 16 Sep 2025 | |
| Cellere Bau AGWinterthur | Railway track construction | 1 | 18 Jun 2025 | |
| Brossi AGWinterthur | Road construction | 1 | 16 Apr 2025 | |
| Hüppi AG Zweigniederlassung WinterthurWinterthur | Road construction | 1 | 16 Apr 2025 | |
| STUTZ AG Bauunternehmung, Zweigniederlassung WinterthurWinterthur | Road construction | 1 | 16 Apr 2025 | |
| Zani Strassenbau AGWinterthur | Road construction | 1 | 16 Apr 2025 | |
| ARGE BRACEMünchwilen TG | Civil engineering, earthworks | 1 | 19 Feb 2025 | |
| Basler & Hofmann AGEsslingen | Planning | 1 | 4 Dec 2024 | |
| Peyer Konzept GmbHZürich | Metalwork | 1 | 2 Oct 2024 | |
| Schneider Stahlbau AGJona | Metalwork | 1 | 13 Nov 2024 |
31 companies with 33 awards across the whole record of this authority.
The network of this authority
Wins here
- Locher Bauunternehmer AG Zürich2
- Lerch AG Bauunternehmung Winterthur2
- JPF Construction SA Bulle1
- Cellere Bau AG Winterthur1
- Brossi AG Winterthur1
Plans here
Winners from the award notices, planning offices from the office register.
Bids per trade
Across all awards of this authority that state the number of bids. See everything with Pro
How many bids an award of this authority had. The figure that tells you whether a bid is worth it.
Open tenders
No tender of this authority is still open for bids today.
Latest lots
| Date | Lot | Stage | Value |
|---|---|---|---|
| 28 Oct 2025 | Achse 2500 Yverdon - Estavayer - St-Aubin - Gampelen, BP 1600-1675 / Estavayer, VALTRALOC FontSource (Procurement portal) | Award | |
| 25 Jun 2025 | Bachtelstrasse, Weinbergstrasse bis Bahnübergang, Kanalneubau und StrasseninstandstellungSource (Procurement portal) | Award | |
| 30 Apr 2025 | Strasseninstandstellungen Stadtgebiet Winterthur, Jahre 2025 bis 2026Source (Procurement portal) | Award | |
| 27 Mar 2025 | Bundesstadt Bonn, KAG Neue Regelung der Belüfter für die biologische StufeNotice | Award | |
| 7 Mar 2025 | Quartier Papiermühleweg, Bauarbeiten, Kanalersatz im MicrotunnelingSource (Procurement portal) | Award | |
| 20 Dec 2024 | Rahmenvertrag GEP-Umsetzung, EntwässerungskonzeptSource (Procurement portal) | Award | |
| 25 Nov 2024 | Querung Grüze, St. Gallerstrasse bis Sulzerallee, NeubauSource (Procurement portal) | Award | |
| 11 Oct 2024 | Wülflingerstrasse, Härti bis NeftenbacherstrasseBaths, swimming pool · Source (Procurement portal) | Award | |
| 5 Jul 2024 | Querung Grüze, St. Gallerstrasse bis Sulzerallee: AufzügeSource (Procurement portal) | Award |
The 9 most recent lots of all stages in the last 12 quarters. Prior information means planning, no tender yet; archive means past.
Questions and answers
How many contracts has Tiefbauamt awarded?
Tiefbauamt has awarded 33 contracts to 31 companies. On average there were 6.5 bids per award, counted over 25 awards that state the number.
Which companies win most often at Tiefbauamt?
Most awards went to Locher Bauunternehmer AG (2), Lerch AG Bauunternehmung (2) and JPF Construction SA (1). In total, 31 companies have won an award here.
What does Tiefbauamt put out to tender?
By CPV division, the most recent tenders mainly concern “Vehicles” (1), “Laboratory, optical, measuring” (1) and “Construction work” (1). The database holds 100 tenders of this authority.
Which planning offices work for Tiefbauamt?
In the last twelve quarters, planning contracts went mainly to F. Preisig AG, Bauingenieure und Planer, Zweigniederlassung Winterthur (1).