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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryReal EstateProperty developerSt. GallenSenn Development AG
Senn Development AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Senn Development AG develops real estate projects for clients, taking usage concepts through to building readiness. Services include land acquisition, project development, realization, marketing, sustainability consulting, building services and digital construction.

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Presence

Service area

Offering

Products & services

Industry:Property developer
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Senn Development AG

Land purchase
Acquisition of plots and properties for further development; purchase, building rights and partnership-based models for undeveloped plots, infill sites, brownfields and development-viable existing properties.
Development
Development of places, sites, plots and properties up to building readiness; future-proof concepts for use with partners, sustainability, architectural quality and user orientation.
Realisation
Realisation and renovation of residential, commercial and business properties as a total contractor or general contractor; project and construction management up to handover of the keys.
Marketing
Marketing of residential units, commercial space and office space; integrated marketing as part of the concept, with stories and outreach to prospective tenants.
Sustainability consulting
Advisory services for sustainable construction projects; material ecology, renewable energies, energy concepts, sustainability certifications, support for competitions, quality assurance and ESG reporting.
Building services
Building services engineering and automation for residential, commercial and laboratory spaces; property management with a focus on quality, certified sustainability and technology.
Digital construction
Creation, modelling, coordination, analysis and maintenance of digital building models; BIM, digital twins, dashboards and cross-project process optimisation.
Trust & reputation

ranQ Trust Score of Senn Development AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of November 2026

Without public customer reviews the score stays capped.

Senn Development AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Senn Development AG scores 87.2 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.95.212%
  • 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%
Senn Development AG 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%
Senn Development AG scores 71.7 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.43.34%
Qualifications+0.00

Senn Development AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, so the score is backed by part of the criteria. As of November 2026.

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

Press

Media

November 1, 2024Media
Allschwil: Life Sciences Campus wächst weiter
immobilienbusiness.ch
April 19, 2023Media
Main Campus und Stücki Park: In Basel pochen zwei neue Biotech-Herzen
fuw.ch
August 31, 2021Media
Nachhaltiges Bürogebäude in Basel soll graue Energie «zurückzahlen»
baublatt.ch
September 1, 2020Media
Den Ort verstehen
hochparterre.ch

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Location

Brühlgasse 37
9000 St. Gallen

At a glance

Legal form
Corporation
UID
CHE-382.464.146
Founded
2013 · 13 years
Last commercial register change
March 3, 2025
Employees
11 to 20

Active in 1 of 26 cantons

  • SGSt. Gallen
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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