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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementBaselCaretta + Weidmann Baumanagement AG
Caretta + Weidmann Baumanagement AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Caretta + Weidmann Baumanagement AG is a service firm specializing in project development, project management and the realization of construction projects. The company supports clients and architects with services such as general planning, total services, construction management, renovations, construction economics, tendering, competition support, expert reports and construction trust services.

AI-generated
Offering

Products & services

Industry:Construction & Project Management
✓ Offered8
Construction management
Construction site management, coordination of the planners and contractors, cost, schedule and quality control; execution of the planned work in direct contractual relationship with the client.
Property development
Complete property development projects, coordinating user requirements, investment costs and return expectations; project steering while taking into account architectural and urban-planning requirements.
General planning
Project management and execution expertise as a general planner; management, coordination and administration of the other planners as part of general planning.
Comprehensive services
Project definition, planning and implementation of construction projects for a fixed price, usually starting from the preliminary project or building permit, under a lump-sum or cost-cap agreement.
Conversions & renovations
Modernisations, renovations, conversions and revitalisations; façade refurbishments, riser refurbishments, upgrades for fire protection and seismic safety, as well as sustainable building services concepts in existing buildings.
Construction economics
Support for projects in the feasibility study and preliminary project phase with a focus on cost efficiency; cost forecasts, benchmarks and construction-economic steering.
Comprehensive services & total contractor tenders
Phase-appropriate tendering for comprehensive-services and total-contractor models; preparation of tenders, definition of scope and award discussions.
Competition support / expert reports / construction trustee services
Support for competition projects with regard to construction-economic and schedule-related matters, preliminary review of competition projects, expert reports, second opinions, condition analyses and construction trustee services.
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4.3/5

Caretta + Weidmann Baumanagement AG

Trust & reputation

ranQ Trust Score of Caretta + Weidmann Baumanagement AG: 4.3 out of 5.0

Trust Score4.3/ 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 89.1 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.
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%
Caretta + Weidmann Baumanagement 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 Baumanagement AG reaches a ranQ Trust Score of 4.3 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

November 19, 2019Media
Also doch nicht Calatrava
hochparterre.ch

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Location

Horburgstrasse 105
4057 Basel
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
Branch
UID
CHE-166.429.179
Founded
2010 · 16 years
Last commercial register change
October 6, 2016
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.76.06%
  • 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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