ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementBaselRTR Projekte GmbH
RTR Projekte GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

RTR Projekte GmbH provides services for building projects, including general planning, project and construction management, cost estimating, scheduling, site supervision and buyer support.

AI-generated
Offering

Products & services

Industry:Construction & Project Management
✓ Offered6
General planning
Complete planning depending on the planning phase, coordination of all planners and specialists, definition of milestones for cost, schedule and quality.
Project steering – project management
Direction of all planners involved in the construction, coordination with authorities, neighbours and specialists, and structured steering with the client’s involvement.
Bill of work (tendering)
Tendering of work packages, obtaining bids, and support with tendering software such as Messerli, CRB and SIA 451.
Schedule planning
Preparation of detailed schedules for small and large construction projects, for new builds and renovations, from planning through implementation.
Construction site supervision
On-site construction management with tight coordination, presence on the construction site, and compliance with quality, deadlines and costs.
Buyer support
Assistance to buyers of condominiums, single-family homes and townhouses with information, decisions, cost adjustments, design questions and appointments.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
3.9/5

RTR Projekte GmbH

Trust & reputation

ranQ Trust Score of RTR Projekte GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

RTR Projekte GmbH scores 60.4 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.70.08%
RTR Projekte GmbH scores 79.8 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.92.512%
  • 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%
RTR Projekte GmbH scores 85.0 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).85.022%
RTR Projekte GmbH scores 7.4 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 35.7.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

RTR Projekte GmbH 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 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once RTR Projekte GmbH has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

RTR Projekte GmbH in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank RTR Projekte GmbH by reviews, experience and specialisations.

Is this your company?

Claim the company profile of RTR Projekte GmbH to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Birsigstrasse 34
4054 Basel

At a glance

Legal form
Limited Liability Company
UID
CHE-191.831.811
Founded
2014 · 12 years
Last commercial register change
October 6, 2020
Employees
1 to 10
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.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    NB
    NOVA Baumanagement GmbH
    Basel
    MS
    Martini Schäfer Baumanagement GmbH
    Basel
    BB
    BERNSTEIN BATIR AG
    Basel
    CG
    ConSwiss GmbH
    Basel
    BI
    Baubüro in situ AG
    Basel
    GG
    greenscope gmbh
    Basel
    AM
    Albert Müller Bau- und Projektleitung GmbH
    Bettingen
    SB
    stucki bauleitung GmbH
    Basel