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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryReal EstateReal Estate BrokerageChampérySophia Boschung-Avanthay
Sophia Boschung-Avanthay Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Sophia Boschung-Avanthay is a real estate agency offering property sales, purchases and rentals for residential and commercial properties. It also provides condominium administration, home staging and residence services.

AI-generated
Offering

Products & services

Industry:Real Estate Brokerage
✓ Offered5
Real estate brokerage
Real estate brokerage for the purchase and sale of properties, including valuation, value enhancement, search for buyers, viewings, negotiation and support up to signature.
Rental property management
Rental property management for apartments and chalets, including rental valuation, marketing, administrative and financial management, technical monitoring, maintenance, regular checks and caretaking.
Condominium (PPE) administration
Full administration of PPE residences, including administrative, technical and financial management, accounting, allocation of charges, general meetings, insurance, claims and follow-up of work.
Secondary home service
Monitoring and caretaking service for secondary residences, including mail collection, invoice payment, regular checks, periodic cleaning and follow-up of work.
Home staging
Home staging for properties intended for sale or rent, using real estate value-enhancing techniques, staging and preparing the home at lower cost.
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4.5/5

Sophia Boschung-Avanthay

Trust & reputation

ranQ Trust Score of Sophia Boschung-Avanthay: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Sophia Boschung-Avanthay scores 94.5 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.94.424%
  • 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.100.010%
  • 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.88.08%
Sophia Boschung-Avanthay scores 78.5 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.55.07%
Sophia Boschung-Avanthay 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%
Sophia Boschung-Avanthay scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sophia Boschung-Avanthay reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 5.0 out of 5 stars from 52 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 52 reviews across all connected sources

Sources
GGoogle552
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue du Village 76
1874 Champéry
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
08:00 - 17:00
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-112.158.849
Founded
2004 · 22 years
Last commercial register change
March 27, 2015
Employees
1 to 10
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.
67.0
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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