Tiefbauamt Graubünden: tenders, sectors & how to win their contracts

Tiefbauamt Graubünden has published 650 tenders in Switzerland.

1 is open for bids as of 9 October 2026.

Its buying spans 3 CPV divisions, most often sewage, refuse, cleaning and environmental services.

Across 500 awarded contracts the median value is CHF434.5k.

Its published awards total CHF449.5m.

Open Tenders

(1)

Tiefbauamt Graubünden

<p>Das Tiefbauamt Graubünden (TBA GR) hat sich entschlossen, systematisch die relevanten Risiken für Strassenbenutzer*in...

Switzerland

Not disclosed

33 days remaining

71300000

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Measured from Tiefbauamt Graubünden's own published record — no estimates, no generic advice.

Plan for about 41 days to prepare a bid — that is the median gap between publication and deadline across 144 of their tenders.
They publish about 36.8 tenders a month, measured over 4 months of history.
Half of their 500 awarded contracts are worth CHF434.5k or less — size your bid to that range.
Most of their buying falls in sewage, refuse, cleaning and environmental services, construction work, architectural, construction, engineering and inspection services.
Their most frequent suppliers are Hew AG Bauunternehmung Chur (43), Bezzola Denoth AG (29), Cellere Bau AG (29) — expect to bid against incumbents who already know this buyer.

Tender	Winner	Tender closed	Contract Value
N29 Nationalstrasse Belag La Veduta	KIBAG Bauleistungen AG, St. Moritz	16 July 2026	CHF158k
H13 Strada Italiana Hinterrhein-Ospizio	Giudicetti SA	2 July 2026	CHF117.7k
725.80 Belagsreparaturen Los 4 - 2025 Belagsarbeiten	Cellere Bau AG	-	CHF192k
H3a Gross Kehr - Kapellakehren, Los2, Neubau Brücke Araschge...	Erni AG Bauunternehmung	-	CHF2.8m
740.16 Instandsetzung Fatschelerstrasse Belagsarbeiten	KIBAG Bauleistungen AG	-	CHF113.7k
H29 Pozzolascio - Pisciadel, Los 1 und 2, Schlosserarbeiten	Greuter AG	-	CHF143.5k

Supplier	Contracts	Total Value
Hew AG Bauunternehmung Chur	43	CHF25.6m
Bezzola Denoth AG	29	CHF48.8m
Cellere Bau AG	29	CHF12m
Foffa Conrad AG	23	CHF30.9m
Hew AG Bauunternehmung Zernez	21	CHF6.6m
C Bauunternehmung Centorame AG	18	CHF7.1m
METTLER PRADER AG	16	CHF12.6m
Schlub AG Nordbünden	16	CHF4.4m