The database of public procurement
Contracting authority
Kantonales Tiefbauamt
Kantonales Tiefbauamt has awarded 74 contracts to 37 companies since 2009, most often to Convia Bau AG (16) (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 “kantonales 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. The current year is incomplete.
Lots per quarter, 12 quarters
All stages, by quarter of publication.
Who wins here
| Company | Trade | Awards | Volume | Latest |
|---|---|---|---|---|
| Convia Bau AGFrauenfeld | Road construction | 16 | 13 Aug 2024 | |
| Toldo Strassen- und Tiefbau AGRickenbach | Road construction, Railway track construction | 6 | 2 Jul 2024 | |
| KIBAG Bauleistungen AGMüllheim-Wigoltingen | Road construction | 3 | 25 Jun 2024 | |
| STRABAG AGSchaffhausen | Road construction | 3 | 25 Jun 2024 | |
| Hüppi AGKreuzlingen | Road construction | 3 | 4 Jun 2024 | |
| Cellere Bau AGAmriswil | Road construction, Civil engineering, earthworks | 3 | 28 May 2024 | |
| Toldo Strassen- und Tiefbau AG WilWil | Road construction | 3 | 15 Aug 2023 | |
| EGOLF AG STRASSEN- UND TIEFBAUWeinfelden | Civil engineering, earthworks, Road construction | 3 | 29 Mar 2011 | |
| bhateam Ingenieure AGFrauenfeld | Planning | 2 | 12 Mar 2024 | |
| H. Wellauer AGFrauenfeld | Road construction | 2 | 19 Dec 2023 | |
| B + S AGZürich | Planning | 2 | 11 Apr 2023 | |
| Planimpuls AG BauingenieureKreuzlingen | Planning | 2 | 28 Jun 2022 |
37 companies with 74 awards across the whole record of this authority.
The network of this authority
Wins here
- Convia Bau AG Frauenfeld16
- Toldo Strassen- und Tiefbau AG Rickenbach6
- KIBAG Bauleistungen AG Müllheim-Wigoltingen3
- STRABAG AG Schaffhausen3
- Hüppi AG Kreuzlingen3
Plans here
- Wälli AG Ingenieure Arbon1
- bhateam Ingenieure AG Frauenfeld1
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 |
|---|---|---|---|
| 21 Aug 2024 | Diessenhofen, Sanierung BuchbergstrasseSource (Procurement portal) | Award | |
| 9 Jul 2024 | Aadorf, Sanierung K29 (Wiesental bis Obertuttwil)Source (Procurement portal) | Award | |
| 9 Jul 2024 | Lanzenneunforn, Herdern, Umgestaltung und Sanierung OrtsdurchfahrtSource (Procurement portal) | Award | |
| 2 Jul 2024 | Wigoltingen, Sanierung Ortsdurchfahrt IllhartSource (Procurement portal) | Award | |
| 2 Jul 2024 | Sofortmassnahmen Kantonsstrassen 2024Source (Procurement portal) | Award | |
| 2 Jul 2024 | Sanierung H13, NeuparadiesSource (Procurement portal) | Award | |
| 25 Jun 2024 | Affeltrangen / Bussnang, Sanierung K66 Weinfelderstrasse / Märwil - BettenSource (Procurement portal) | Award | |
| 25 Jun 2024 | Bichelsee-Balterswil / Fischingen, K38 Neubau Radweg Itaslen - DussnangSource (Procurement portal) | Award | |
| 18 Jun 2024 | Frauenfeld, H465 Sanierung WeststrasseSource (Procurement portal) | Award | |
| 12 Jun 2024 | SOMA 2024, TBA TGSource (Procurement portal) | Award | |
| 4 Jun 2024 | Deckschichtersatz 2024, TBA TGSource (Procurement portal) | Award | |
| 4 Jun 2024 | Bischofszell, Sanierung K111 GloggershausSource (Procurement portal) | Award | |
| 4 Jun 2024 | Tobel-Tägerschen/Münchwilen, Deckbelaqgsersatz H354 (Sedel - Bahnübergang) / Sanierung Bushaltestelle St. Margareten-Dorf, Deckbelag / Deckbelagsersatz WeinfelderstrasseSource (Procurement portal) | Award | |
| 28 May 2024 | Wängi, Sanierung Frauenfelderstrasse, Jakobstal bis HeiterschenSource (Procurement portal) | Award | |
| 28 May 2024 | Arbon, St.Gallerstrasse/Sonnenhügelstrasse - Webschiffkreisel, Ingenieurdienstleistungen SIA-Phasen 32 bis 53Source (Procurement portal) | Award | |
| 28 May 2024 | Dünnschichtbeläge (DSH) 2024Source (Procurement portal) | Award | |
| 7 May 2024 | Egnach, Sanierung BahnhofstrasseSource (Procurement portal) | Award | |
| 30 Apr 2024 | Sanierung Bushaltestellen RotbuchSource (Procurement portal) | Award | |
| 30 Apr 2024 | Sirnach, Kreisel Q20Source (Procurement portal) | Award | |
| 21 Mar 2024 | Altnau, Sanierung Altnau - GüttingenSource (Procurement portal) | Award |
The 20 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 Kantonales Tiefbauamt awarded?
Kantonales Tiefbauamt has awarded 74 contracts to 37 companies since 2009. On average there were 4.4 bids per award, counted over 67 awards that state the number.
Which companies win most often at Kantonales Tiefbauamt?
Most awards went to Convia Bau AG (16), Toldo Strassen- und Tiefbau AG (6) and KIBAG Bauleistungen AG (3). In total, 37 companies have won an award here.
What does Kantonales Tiefbauamt put out to tender?
By CPV division, the most recent tenders mainly concern “Architecture and engineering” (12), “Vehicles” (4) and “Construction work” (1). The database holds 111 tenders of this authority.
Which planning offices work for Kantonales Tiefbauamt?
In the last twelve quarters, planning contracts went mainly to Wälli AG Ingenieure (1) and bhateam Ingenieure AG (1).