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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementZurichCaretta + Weidmann Baumanagement AG
Caretta + Weidmann Baumanagement AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Caretta + Weidmann Baumanagement AG is a service company providing project development, project and construction management, and general planning services. The firm assists clients and architects with planning and realisation, renovations, construction-economics advice and phase-appropriate tendering for total-contract or design-construction models.

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Offering

Products & services

Industry:Construction & Project ManagementGeneral Contractors
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Caretta + Weidmann Baumanagement AG

✓ Offered8
Project developments
Taking over complete project developments with control of occupancy requirements, investment costs and return targets; support for clients and architectural offices in development and implementation.
Overall services
Planning, design and execution of building projects for a fixed price, often starting from the preliminary project or building permit; lump-sum or cost-cap contracts with responsibility for costs, schedule and quality.
General planning
Project management and execution expertise in general planning; management, coordination and administration of delegated services, relieving clients during the design and planning phase.
Construction management
Site management and coordination of contractors; implementation of the planning with responsibility for cost compliance as well as schedule and quality requirements.
Conversions & renovations
Modernisations, renovations, conversions and revitalisations; façade refurbishments, riser refurbishments, upgrades for fire protection and earthquake safety, and sustainable building-services concepts in existing buildings.
Construction economics
Support of projects from feasibility study or preliminary project with regard to cost efficiency; cost forecasts, benchmarks and construction-economic control of architectural, system and building-services decisions.
Overall services and total contractor submissions
Preparation and processing of phase-appropriate tenders for overall services and total contractor models; definition of the type and content of the tenders as well as award interviews and moderation.
Competition support/Expert assessments/Construction trustee
Support for competition projects in construction-economic and scheduling matters, preliminary review of competition projects, expert assessments, second opinions, condition analyses and construction trustee services.
Trust & reputation

ranQ Trust Score of Caretta + Weidmann Baumanagement AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

Caretta + Weidmann Baumanagement AG scores 76.7 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.71.424%
  • 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.74.910%
  • 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.95.08%
Caretta + Weidmann Baumanagement AG scores 95.9 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.90.07%
Caretta + Weidmann Baumanagement AG 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%
Caretta + Weidmann Baumanagement AG scores 59.5 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 35.85.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.33.34%
Qualifications+0.00

Caretta + Weidmann Baumanagement AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 18 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 18 reviews across all connected sources

Sources
GGoogle4.518
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

February 17, 2026Media
Stadt Zürich wechselt überraschend Bauleitung für Tramdepot Hard aus
nzz.ch
November 19, 2019Media
Also doch nicht Calatrava
hochparterre.ch

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Location

Langgrütstrasse 112
8047 Zurich
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.927.200
Founded
1983 · 43 years
Last commercial register change
November 19, 2025
Employees
51 to 100
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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.85.03%
    • Full methodology

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