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
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsBaselARCH 4 AG
ARCH 4 AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Arch4 is the provision of architectural services, including project development, consulting and design, for residential, commercial and public projects.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered4
Architectural consulting
Architectural consulting and project development for Europe, France and the USA, with concepts, design development and detailed planning as well as project management.
Residential building planning
Planning of private homes, penthouses and conversions; includes architectural concepts, detailed planning and implementation projects for residential buildings.
Commercial building planning
Planning of boutiques, shopping centres and offices; includes architectural concepts and project implementations for commercial spaces.
Planning of public buildings
Planning of social and public projects, including media and press centres, sports facilities, staircases and urban planning projects.
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
4.1/5

ARCH 4 AG

Trust & reputation

ranQ Trust Score of ARCH 4 AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

ARCH 4 AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
ARCH 4 AG scores 92.3 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.82.07%
ARCH 4 AG scores 83.3 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).83.322%
ARCH 4 AG scores 4.9 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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ARCH 4 AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

Knowledge

No knowledge articles yet

Once ARCH 4 AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

ARCH 4 AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank ARCH 4 AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of ARCH 4 AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

St. Johanns-Vorstadt 15
4056 Basel

At a glance

Legal form
Corporation
UID
CHE-100.984.119
Founded
2000 · 26 years
Last commercial register change
August 12, 2025
Employees
21 to 50
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

    Similar companies

    MP
    Morger Partner Architekten AG
    Basel
    MB
    Matthias Bill, Architekt
    Basel
    H&
    Herzog & de Meuron Architekten AG
    Basel
    OA
    on3 AG
    Basel
    OA
    ON3 ARCHITEKTEN GmbH
    Basel
    LR
    Lukas Raeber GmbH
    Basel
    SM
    Staehelin Meyer Architektur AG
    Basel
    JK
    Jaeger Koechlin GmbH
    Basel