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Fact Sheet MAG Beratung AG

Core Company Information

Company Name	MAG Beratung AG
UID	CHE-107.882.276
Alternative / previous Names	accontax Treuhand Lyssach AG Buchhaltungs- und Treuhandbüro B. Zogg AG Buchhaltungsbüro B. Zogg und R. Keiser AG
Domicile	Langenthal
Canton	BE
Legal Form	Limited corporation
Inscription Date	17.02.1981
Firm Deletion Date	05.06.2019
Acquired by:	accontax Markus Gfeller Treuhand AG (CHE-101.350.360)

FAOA Information

FAOA ID	-
RAB Permission	-
FAOA License	unknown
Link to FAOA website	n/a
Branch offices (0)	-
Membership in Associations	-
Number of auditors with permission	-

Auditor Statistics

Average engagement duration: n/a years (max.: n/a years)

Total number of statutory audit clients: 0 (Ranked #n/a in Switzerland)

Change in number of audit engagements: n/a (since 31.12.2025), - (over the last 12 months)

Related audit firms

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BDO Visura International AG (CHE-101.311.259), 0 audit engagements
Continental Revision und Treuhand AG in Liquidation (CHE-102.133.983), 0 audit engagements
LMK Revisions AG (CHE-102.604.764), 0 audit engagements
Fidirevisa SA (CHE-105.752.734), 0 audit engagements
BDO Sofirom SA (CHE-106.015.064), 0 audit engagements
Wyss + Partner Treuhand AG (CHE-106.214.899), 0 audit engagements
Dr. Suter Treuhand AG (CHE-106.926.617), 0 audit engagements
Jörg Moser AG (CHE-108.766.997), 0 audit engagements
FSA FIDUCIARIA SVIZZERA DEGLI ALBERGATORI DIVISIONE TICINO SA (CHE-110.366.118), 0 audit engagements
BDO Visura (Valais) SA (CHE-113.627.261), 0 audit engagements
Continental Revision und Treuhand (CHE-101.494.421), 0 audit engagements
MGF Consulenze SA (CHE-108.160.688), 0 audit engagements
Jörg Moser Treuhand GmbH (CHE-108.596.838), 0 audit engagements
Treuhand- und Revisionsgesellschaft Zürich (CHE-101.303.219), 0 audit engagements
Hess Grant Thornton AG Weinfelden (CHE-106.027.357), 0 audit engagements
Hess Grant Thornton AG Zürich (CHE-106.771.510), 0 audit engagements
Hess Grant Thornton AG St. Gallen (CHE-107.403.055), 0 audit engagements
LB Treuhand AG (CHE-112.134.671), 6 audit engagements
Finanzkontrolle der Stadt St.Gallen (CHE-112.370.160), 12 audit engagements
Audit Suisse AG (CHE-112.451.953), 164 audit engagements
Morf Treuhand AG (CHE-114.169.947), 36 audit engagements
Resa Business Audit GmbH (CHE-140.177.036), 0 audit engagements

Latest audit engagements

These are this auditor's latest audit engagements.

Client Name	Client UID	Domicile	Start Date	Type of switch	Auditor Branch
SELA Holding AG	CHE-109.603.783	Langenthal	12.06.2002	First auditor	Langenthal
Garage Gautschi Holding AG	CHE-101.304.408	Langenthal	09.10.2000	First auditor	Langenthal
W B Wiedmer Baumontage AG in Liquidation	CHE-105.545.603	Langenthal	09.06.2000	First auditor	Langenthal
Architekturbüro Ledermann AG Langenthal	CHE-105.176.575	Langenthal	17.08.1999	First auditor	Langenthal
Elektro Zimmerli AG	CHE-107.961.852	Wynau	02.07.1999	First auditor	Langenthal

Discontinued audit engagements

The following audit engagements were lost recently, either to a competitor, due to auditor resignation or due to an opting out.

Client Name	Client UID	Domicile	End Date	Reason	Auditor Branch
Zulliger, Schreinerei + Holzbau AG	CHE-107.173.458	Madiswil	19.09.2005	Auditor switch	Langenthal
W B Wiedmer Baumontage AG in Liquidation	CHE-105.545.603	Langenthal	09.07.2004	Auditor switch	Langenthal
Hermann Leibundgut AG in Liquidation	CHE-107.193.811	Roggwil (BE)	21.06.2004	Auditor switch	Langenthal
SOBAG FAHRZEUGBAU AG in Liquidation	CHE-106.529.245	Rothrist	24.05.2004	Auditor switch	Langenthal
Architekturbüro Ledermann AG Langenthal	CHE-105.176.575	Langenthal	31.03.2004	Auditor switch	Langenthal