ZE-RO Service GmbH — Austria · TED award notices · Supplier record: 1 award notices, all years (May 2026); 1 since January 2024 (1 buyer); 9th rank in the line (of 43 suppliers · 5.9%); 11 buyers never served (14 notices in the line from them).
Assay record ASY-AT-1GHO5Y31JG · Cite as: Assay Systems, “ZE-RO Service GmbH in the TED register for Austria”, https://assay-systems.com/register/at/ze-ro-service-gmbh/
1
award notices, all years
May 2026
1
since January 2024
1 buyer
9th
rank in the line
of 43 suppliers · 5.9%
11
buyers never served
14 notices in the line from them
Own record by year
award notices, 2023 onward
1
2023202420252026
Who buys from ZE-RO Service GmbH
since January 2024
1buyers
1notices
100%top buyer
Magistrat der Stadt Wien - Magistratsabteilung 56100.0%
1 notice
The line
since January 2024
17award notices
12buyers
43suppliers
41.1%held by top ten
Window-cleaning services (CPV 90911300)
3
9
5
202420252026Jan–Sep
9thof 43 suppliers
1notices name ZE-RO Service GmbH
5.9%share of the line
33.3%of 3 notices from Magistrat der Stadt Wien - Magistratsabteilung 56
23new suppliers since 2025
Buyers that buy the line and never named ZE-RO Service GmbH
since November 2023
11buyers
14notices since 2024
9buyers took a new supplier
45suppliers came in that way
Kuratorium Wiener Pensionisten-Wohnhäuser
3 notices
Magistrat der Stadt Wien - Magistratsabteilung 34
2 notices
Albertina
1 notice
Kinder- und Jugend-Services Linz
1 notice
Kuratorium für psychosoziale Dienste in Wien
1 notice
Lycée Francais de Vienne
1 notice
Magistrat der Stadt Wien - Magistratsabteilung 10
1 notice
Mein Wien-Apartment - Fonds für temporäres Wohnen in Wien
Source: contract award notices for Austria 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.