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

About the company

Caretta + Weidmann Partners AG provides construction management, project development and general planning services. The firm supports clients and architects in project design, planning and realization and offers services including renovations and conversions, construction economics, tender management, competition support, technical assessments and construction trustee services.

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Products & services

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Caretta + Weidmann Partners AG

✓ Offered8
Project development
Complete project developments with optimisation of usage requirements, investment costs and return expectations; project steering while considering architectural ideas and urban planning positioning.
Construction management
Construction site management with leadership and coordination of planners and contractors; responsibility for cost compliance as well as schedule and quality requirements.
Comprehensive services
Design, planning and execution of building projects at a fixed price, usually from the preliminary project or building permit; with a lump-sum or cost-cap contract.
General planning
Project management and execution expertise in the role of the general planner; leadership, coordination and administration with relief for the client(s).
Conversions & renovations
Modernisations, renovations, conversions and revitalisations; façade refurbishments, vertical pipe line renewals, upgrades for fire protection and earthquake safety, as well as sustainable building-services concepts in existing structures.
Construction economics
Support for projects from the feasibility study or preliminary project regarding cost efficiency; cost forecasts, benchmarks and control of project completion.
Comprehensive services and total contractor submissions
Processing and preparation of phase-appropriate tenders for comprehensive services and total contractor models; definition of type and content as well as award interviews and moderation.
Competition support / expert opinions / construction trustee services
Supporting architects in competition projects, preliminary reviews for juries, expert opinions and second opinions, condition analyses and construction trustee services.
Trust & reputation

ranQ Trust Score of Caretta + Weidmann Partners AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Caretta + Weidmann Partners 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 Partners AG scores 68.4 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.39.612%
  • 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.90.07%
Caretta + Weidmann Partners 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 Partners AG scores 47.9 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.10.04%
Qualifications+0.00

Caretta + Weidmann Partners AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «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

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-163.708.737
Founded
2024 · 2 years
Last commercial register change
January 6, 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.
100.0
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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