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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction managerFrauenfeldSeger Bauprojekte AG
Seger Bauprojekte AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Seger Bauprojekte AG manages construction and project planning and delivers building projects on a turnkey basis. Its work covers new builds, interior fit-outs, conversions, renovations and refurbishments of residential and commercial properties.

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Service area

Offering

Products & services

Industry:Construction manager
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Seger Bauprojekte AG

✓ Offered
12
Construction management
Construction management for new builds, interior fit-out, conversions, renovations and refurbishment works for residential and commercial buildings.
Project management
Project management for comprehensive construction projects, including development, cost planning and coordination of residential and commercial buildings.
Turnkey construction
Turnkey construction of projects, from new builds through interior fit-out to conversions, renovations and refurbishments.
Project development
Project development for multi-family houses, single-family houses, residential parks and residential and commercial properties, including development and cost planning.
Cost planning
Cost planning for construction projects, linked with development and turnkey construction of residential and commercial buildings.
Overall project management
Overall project management for complex construction projects with different uses, for example administrative, residential and commercial areas.
New construction of residential buildings
New construction of multi-family houses, single-family houses, residential parks and residential properties in different build specifications.
New construction of commercial buildings
New construction of commercial and residential buildings as well as mixed-use properties with commercial installations.
Building conversions
Building conversions for residential and commercial properties, including extensions, tenant fit-outs and adaptations while in operation.
Renovations
Renovations for residential and commercial buildings, including refurbishments of spaces and work on existing structures.
Refurbishments
Refurbishments of residential and commercial buildings, including roof refurbishments, fire protection upgrades, thermal refurbishments and earthquake strengthening.
Interior fit-out
Interior fit-out for residential and commercial buildings, including finishes, plasterboard and partition walls as well as tenant improvements.
Trust & reputation

ranQ Trust Score of Seger Bauprojekte AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of November 2026

Seger Bauprojekte AG scores 53.8 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.70.824%
  • 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.27.910%
  • 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%
Seger Bauprojekte AG scores 83.5 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.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.55.07%
Seger Bauprojekte 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%
Seger Bauprojekte AG scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Seger Bauprojekte AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Altweg 16
8500 Frauenfeld
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-268.023.423
Founded
2013 · 13 years
Last commercial register change
March 30, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • TGFrauenfeld
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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