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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsMartigny-CroixCHRISTIAN CONSTANTIN SA
CHRISTIAN CONSTANTIN SA Logo
Verified· 4 sourcesTrust Score
Summary

About the company

CHRISTIAN CONSTANTIN SA is a firm providing architecture, general contracting, real estate development and financing services. It delivers architectural design, construction management, property promotion and financial services for residential, commercial, tourist and public projects, overseeing assignments from concept through completion.

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Products & services

Industry:Architecture FirmsGeneral Contractors
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CHRISTIAN CONSTANTIN SA

✓ Offered4
Real estate development
Development of apartments and residential properties in French-speaking Switzerland, with marketing of new build projects, penthouses, villas and refurbishments of existing properties.
Architecture office
Architecture office for the design of real estate projects, construction concepts, planning and support of the projects from conception to completion.
General contractor
General contractor for the management and execution of construction projects, from preparation to final completion, while respecting costs and quality criteria.
Real estate financing
Financing for real estate projects, with analysis of concrete financing proposals and profitability for private and institutional clients.
Trust & reputation

ranQ Trust Score of CHRISTIAN CONSTANTIN SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

CHRISTIAN CONSTANTIN SA scores 60.1 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.46.924%
  • 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.83.810%
  • 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.70.08%
CHRISTIAN CONSTANTIN SA scores 92.3 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.82.07%
CHRISTIAN CONSTANTIN SA scores 86.7 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).86.722%
CHRISTIAN CONSTANTIN SA scores 41.5 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 35.82.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

CHRISTIAN CONSTANTIN SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 26 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.8
of 5

Aggregated from 26 reviews across all connected sources

Sources
GGoogle3.826
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 5, 2023Media
Sion-Präsident Christian Constantin verliert Steuer-Streit vor Bundesgericht
20min.ch

Knowledge

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Comparisons

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Location

Route du Grand-Saint-Bernard 5
1921 Martigny-Croix
Opening hours
Mon
08:00 - 12:00, 13:30 - 18:00
Tue
08:00 - 12:00, 13:30 - 18:00
Wed
08:00 - 12:00, 13:30 - 18:00
Thu
08:00 - 12:00, 13:30 - 18:00
Fri
08:00 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-447.784.138
Founded
2011 · 15 years
Last commercial register change
March 10, 2020
Employees
21 to 50
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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