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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesAarauGruber Partner AG
Gruber Partner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the provision of services in the areas of auditing, fiduciary, tax consulting and planning, business consulting, and legal consulting, particularly for companies, entrepreneurs, public institutions, non-profit organizations, and pension funds.

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
✓ Offered6
Financial Audit
Financial audits for standalone and consolidated financial statements, limited and ordinary audits, special audits under the Code of Obligations and the Merger Act, due diligence, and audits for municipalities, pension institutions, and non-profit organizations.
Fiduciary Services
Fiduciary services for accounting, bookkeeping, annual financial statements, payroll accounting, HR administration, VAT and social security filings, as well as tax returns, tax planning, and representation before the tax authorities.
Business Consulting
Business consulting for business valuation, succession arrangements, sustainable business development, risk and opportunity management, board mandates, and support in strategy, organization, and controlling.
Legal Advisory
Legal advisory for business-law and IT-related contracts, as well as advice on property and inheritance law and legal representation in tax and objection proceedings.
Board and Foundation Board Mandates
Assumption of board of directors and foundation board mandates, including personal commitment, governance support, and accompaniment of strategy and leadership responsibilities.
Estate Execution
Executor mandates for entrepreneurs, complemented by succession coaching, provision planning, and advice on property and inheritance law.
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4.0/5

Gruber Partner AG

Trust & reputation

ranQ Trust Score of Gruber Partner AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Gruber Partner AG scores 49.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.68.224%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.17.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Gruber Partner AG scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Gruber Partner AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Gruber Partner AG scores 65.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.65.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gruber Partner AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Comparisons

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Location

Bahnhofstrasse 78
5000 Aarau
Opening hours
Mon
08:00 - 12:00, 13:15 - 17:15
Tue
08:00 - 12:00, 13:15 - 17:15
Wed
08:00 - 12:00, 13:15 - 17:15
Thu
08:00 - 12:00, 13:15 - 17:15
Fri
08:00 - 12:00, 13:15 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.082.755
Founded
1986 · 40 years
Last commercial register change
June 2, 2026
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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