About us

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ATG Business AG

We are an owner-managed company based in the St. Gallen Rhine Valley with the aim of offering our customers the best service. Whether insurance inquiries, fiduciary matters or tax return topics, we are your contact partner!

Where do you find us?

Our office is located at Widnauerstrasse 6 in 9435 Heerbrugg. You can find parking in our underground car park.

Our opening times

Mon-Fri 8 a.m. - 12 p.m. and 1.30 p.m. - 5 p.m.

Claims hotline: Mon.-Fri. 8 a.m. - 8 p.m.

Dates: Also possible outside opening hours

Please refer to our Google page for special opening times on Sundays and public holidays:

Contact details

071 740 94 80

Whether insurance, trust or damage, you can always reach us with the same number.

info@atg-business.ch | treuhand@atg-business.ch

We will respond to your request within 24 hours.

Widnauerstrasse 6, 9435 Heerbrugg

Our office is located in the heart of Heerbrugg, directly on the main road between Heerbrugg and Widnau. Parking in the customer parking lot in the underground car park.

The minds behind ATG Business AG

Open positions

Be part of a dynamic, intelligent and young team.

Advisory languages

Auxiliary languages