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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsSt. GallenJeannette Geissmann Architektur GmbH
Jeannette Geissmann Architektur GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is the planning and realization of architectural projects, including new buildings, conversions, renovations and refurbishments of buildings and facilities, such as residential houses, office buildings, schools, museums, train stations, restaurants and other public and private institutions.

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Products & services

Industry:Architecture FirmsGeneral Contractors
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4.1/5

Jeannette Geissmann Architektur GmbH

✓ Offered6
Architectural services for new builds, conversions and renovations
New builds, conversions and renovations for multi-family houses, single-family houses, residential developments, office construction, commercial construction and public buildings.
Competition planning and project development
Competitions, design and construction project planning, studies and feasibility studies for different building requirements and uses.
Building submissions and permit documentation
Building submissions, permit documentation and coordination with cantonal and municipal authorities, heritage protection, spatial planning offices and building departments.
Detailed execution planning and design detailing
Execution planning as well as detailed and interior fit-out planning for construction projects in collaboration with specialist planners and engineers.
Construction and project management
Construction and project management, construction management, cost and schedule planning, cost monitoring and final construction accounting in collaboration with specialists.
Client advisory services and feasibility studies
Client advisory services and feasibility studies for new builds, conversions and renovations as well as for complex building projects.
Trust & reputation

ranQ Trust Score of Jeannette Geissmann Architektur GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Jeannette Geissmann Architektur GmbH scores 66.9 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.73.124%
  • 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.35.310%
  • 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%
Jeannette Geissmann Architektur GmbH scores 85.3 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.89.612%
  • 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%
Jeannette Geissmann Architektur GmbH scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Jeannette Geissmann Architektur GmbH scores 23.8 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.34.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.13.34%
Qualifications+0.00

Jeannette Geissmann Architektur GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 12, 2024Media
«Eileen Gray und das Haus am Meer» mit der Architektin Jeannettte Geissmann.
tagblatt.ch

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Location

Davidstrasse 23
9000 St. Gallen
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
Limited Liability Company
UID
CHE-146.005.557
Founded
2015 · 11 years
Last commercial register change
January 30, 2025
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.88.06%
  • 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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