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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,962 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesWil SgTrefima AG
Trefima AG Logo
Verified· 3 sources

Trefima AG

Summary

About the company

1. The core activity of Slongoo IT Solutions AG is the creation of web designs for self-employed individuals and small to medium-sized enterprises (SMEs). 2. The core activity of Trefima AG is tax and business consulting.

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
✓ Offered2
Tax advisory
Tax advisory for individuals and businesses, including tax filings and ongoing tax support.
Business consulting
Business consulting for SMEs and self-employed professionals, with support on organisational and business-management matters.
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Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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Location

Neulandenstrasse 6
9500 Wil Sg
Opening hours
Mon
08:00 - 17:30
Tue
08:00 - 17:30
Wed
08:00 - 17:30
Thu
08:00 - 17:30
Fri
08:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.972.784
Founded
1978 · 48 years
Last commercial register change
December 16, 2008
Employees
1 to 10

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