Regionale Wasserversorgung Birstal-Thierstein AG
Company Overview
Management
Felix Kurt
Zwingen
Chairperson of the board
Joint signing authority (any two to sign)
Max Waldner
Grindel
Secretary (non-member of the board)
Joint signing authority (any two to sign)
Dominik Walter
Himmelried
Vice-chairperson of the board
Joint signing authority (any two to sign)
Reto Winkelmann
Meltingen
Member of the board
Without signing authority
Stefan Bärtschi
Zwingen
Member of the board
Joint signing authority (any two to sign)
Philipp Stenz
Erschwil
Member of the board
Without signing authority
Franz Häner
Büsserach
Member of the board
Joint signing authority (any two to sign)
Peter Hueber
Zwingen
Member of the board
Joint signing authority (any two to sign)
Dieter Bieli
Brislach
Member of the board
Without signing authority
Franz Infanger
Fehren
Member of the board
Without signing authority
Otto Mendelin
Nenzlingen
Member of the board
Without signing authority
Guido Schneider
Zwingen
Member of the board
Without signing authority
Walther Bucher
Laufen
Member of the board
Without signing authority
Irene Jeger-Hänggi
Meltingen
Member of the board
Without signing authority
Andreas Hänggi
Nunningen
Member of the board
Without signing authority
Peter Flury
Himmelried
Vice-chairperson of the board
Joint signing authority (any two to sign)
Irene Jeger
Meltingen
Member of the board
Without signing authority
Richard Häfeli
Nunningen
Vice-chairperson of the board
Joint signing authority (any two to sign)
Sylvia Thomann
Himmelried
Member of the board
Without signing authority
Michel Ostertag
Himmelried
Member of the board
Without signing authority
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| No. | Journal No. | Journal date | SOGC | SOGC date | Page / ID |
|---|---|---|---|---|---|
| 1 | 4834 | 28.08.2025 | 168 | 02.09.2025 | 1006422732 |
| 2 | 3804 | 06.07.2023 | 132 | 11.07.2023 | 1005792459 |
| 3 | 4308 | 26.08.2022 | 168 | 31.08.2022 | 1005551390 |
| 4 | 4808 | 02.09.2021 | 173 | 07.09.2021 | 1005285962 |
| 5 | 5126 | 28.10.2019 | 211 | 31.10.2019 | 1004749234 |
| 6 | 4445 | 12.08.2016 | 158 | 17.08.2016 | 3007795 |
| 7 | A3756 | 22.08.2014 | A164 | 27.08.2014 | 1683641 |
| 8 | 3158 | 21.07.2014 | 141 | 24.07.2014 | 1631745 |
| 9 | 3390 | 14.07.2011 | 138 | 19.07.2011 | 6262766 |
| 10 | 4143 | 30.08.2010 | 171 | 03.09.2010 | 6/5797458 |
Company Purpose
Gemeinsame Fassung, Aufbereitung und Förderung von Grundwasser, um dieses als Trink-, Gebrauchs- und Löschwasser an die Aktionäre abzugeben.