Keller-Frei AG — Switzerland · TED award notices · Supplier record: 2 award notices, all years (Feb 2025 – Dec 2025); 2 since January 2024 (2 buyers); 2nd rank in the line (of 12 suppliers · 7.7%); 11 buyers never served (12 notices in the line from them).
Assay record ASY-CH-04HF07G0SW · Cite as: Assay Systems, “Keller-Frei AG in the TED register for Switzerland”, https://assay-systems.com/register/ch/keller-frei-ag/
2
award notices, all years
Feb 2025 – Dec 2025
2
since January 2024
2 buyers
2nd
rank in the line
of 12 suppliers · 7.7%
11
buyers never served
12 notices in the line from them
Own record by year
award notices, 2023 onward
2
2023202420252026
Who buys from Keller-Frei AG
since January 2024
2buyers
2notices
50%top buyer
Tiefbauamt, Abt. Projektieren + Realisieren50.0%
1 notice
TED - Grün Stadt Zürich (GSZ)50.0%
1 notice
The line
since January 2024
13award notices
12buyers
12suppliers
84.6%held by top ten
Construction work for water and sewage pipelines (CPV 45231300)
3
7
3
202420252026Jan–Sep
2ndof 12 suppliers
1notices name Keller-Frei AG
7.7%share of the line
100.0%of 1 notice from TED - Grün Stadt Zürich (GSZ)
5new suppliers since 2025
Buyers that buy the line and never named Keller-Frei AG
since November 2023
11buyers
12notices since 2024
8buyers took a new supplier
9suppliers came in that way
DIB - Wasserversorgung (WVZ)
2 notices
Abwasserverband Region Kerzers
1 notice
Aziende Industriali di Lugano (AIL) SA
1 notice
Bundesamt für Bauten und Logistik BBL, Abteilung Projektmanagement
Source: contract award notices for Switzerland in Tenders Electronic Daily (TED), Publications Office of the European Union, ted.europa.eu, reusable for commercial purposes under Commission Decision 2011/833/EU; notices from November 2023, when TED began to publish the winning supplier, to 30 September 2026, accessed 11 October 2026.Assay Systems has changed the data.