Holding Companies in
Au SG

25 companies in Holding Companies based in Au SG — name and year of registration from the commercial register. The list below shows them all.

Companies

All 25 companies in Au SG

SYSBO Holding GmbH Logo

SYSBO Holding GmbH

Since 2000 · 21–50 empl.

SYSBO Holding GmbH is a company active in district heating technology and energy and control systems. Its portfolio includes the development and production of transfer stations, hot water modules, control technology, visualization, network monitoring, as well as service and retrofit work.

Holding CompaniesDistrict heating transfer stationsDirect district heating transfer stations and heat distributionHot water solutions
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Irene Inauen Holding AG Logo

Irene Inauen Holding AG

Since 2010 · 1–10 empl.

Irene Inauen Holding AG is a company that manufactures turned parts and provides machining services, including CNC turret turning, CNC long turning, centerless grinding and thread rolling. Production is carried out from bar stock for diameters of approximately 3–65 mm and quality management follows ISO 9001:2008.

Holding CompaniesTurning parts manufacturingCNC revolver turningCNC long turning
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
HWT Haus- und Wassertechnik Holding AG Logo

HWT Haus- und Wassertechnik Holding AG

Since 2019 · 1–10 empl.

HWT Haus- und Wassertechnik Holding AG provides sanitary, heating and water-supply engineering services, including installation, maintenance and technical planning. The company’s activities also include swimming-pool maintenance, pipeline construction and production of settlement water structures from plastic at its plastics workshop.

Holding CompaniesBuilding servicesBathroom renovations24-hour emergency service
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
DA

Diamant Armaturen AG

Since 1999 · 1–10 empl.

Holding Companies
No score yet
SB

Synergetic Beteiligungen AG

Since 2001 · 1–10 empl.

Holding Companies
No score yet
UA

units AG

Since 2008 · 1–10 empl.

Holding Companies
No score yet
LC

LIFESTYLE communication & consulting GmbH

Since 2010 · 1–10 empl.

Management Consulting
No score yet
RA

Ribonet AG

Since 2011 · 1–10 empl.

Holding Companies
No score yet
RH

Redwood Holding AG

Since 2012 · 1–10 empl.

Holding Companies
No score yet
IH

Interferenz Holding AG

Since 2014 · 1–10 empl.

Holding Companies
No score yet
MH

Munera Holding GmbH

Since 2015 · 1–10 empl.

Holding Companies
No score yet
GS

gn services gmbh

Since 2016 · 1–10 empl.

Holding Companies
No score yet

Holding Companies in Au SG

25Holding CompaniesCommercial register (Zefix) · as of October 11, 2026
2016Median year of registrationCommercial register (Zefix) · as of October 11, 2026
2,053in the Canton of St. GallenCommercial register (Zefix) · as of October 11, 2026
43,488in SwitzerlandCommercial register (Zefix) · as of October 11, 2026
Locations

Holding Companies in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 11, 2026