25th-floor
de Pretis & Helmberger KG
Hauslabgasse 35-37/28
1050 Wien
office@25th-floor.com
fon: +43 699 201 58 627
fax: +43 699 401 58 627
Bankverbindung: Raiffeisenlandesbank
Niederösterreich-Wien AG
BLZ: 32000
Kontonummer: 9.313.636
IBAN: AT703200000009313636
BIC: RLNWATWW
de Pretis & Helmberger KG
Hauslabgasse 35-37/28
1050 Wien
office@25th-floor.com
fon: +43 699 201 58 627
fax: +43 699 401 58 627
Bankverbindung: Raiffeisenlandesbank
Niederösterreich-Wien AG
BLZ: 32000
Kontonummer: 9.313.636
IBAN: AT703200000009313636
BIC: RLNWATWW
Just a few of our clients ...
![]() |
![]() |
![]() |
... LeasePlan, WienTourismus, WHG, Austrian Soccer Board, bürosterngasse*, Univ. Klagenfurt IFF-OE, Kallco Bauträger, LINIERT, Wirtschaftsverlag and more ...
Open Source Software
We do our best to support and participate in the Open Source movement. Right now we don't maintain extensive information about our OSS contributions.
Please just have a peek in the current OSS subsection.



