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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsNeuendorfLangenstein & Partner AG
Langenstein & Partner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Langenstein & Partner AG is a consulting and service firm for spatial development and the construction sector. It supports municipalities, private clients, developers, architects and investors with building-permit procedures, spatial planning, legal advice on construction, planning, infrastructure and environmental law, client representation, and temporary or ongoing mandates.

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Products & services

Industry:Civil Engineering Firms
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3.8/5

Langenstein & Partner AG

Construction & Project Management
Owner's Representative
✓ Offered6
Building permit procedures
Building permit procedures, formal and substantive review of building applications, building inspections, building police proceedings, and management of contaminated sites.
Spatial development and planning
Development and support of plans, studies, concepts and land-use planning; advice on local planning matters, quality assurance, as well as process support and moderation.
Construction, planning, infrastructure development and environmental law
Legal and technical assessments and advice, infrastructure and development contracts, planning agreements, objection and appeal proceedings, revisions of regulations, and noise-related matters.
Client support and representation
Support for projects from the first idea through to the approved building application, including planning, local planning assessment, quality assurance, process support and moderation.
Municipal consulting
Development of strategy and vision, municipal organisation, project support, communication and media work, moderation and mediation, coaching for politics and administration.
Relief assignments and long-term mandates
Short- to long-term deputy solutions, flexible ad hoc solutions on site or externally, and coaching for new appointments.
Trust & reputation

ranQ Trust Score of Langenstein & Partner AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 54% · As of October 2026

Langenstein & Partner 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.
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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%
Langenstein & Partner AG scores 59.7 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.55.07%
Langenstein & Partner AG scores 83.3 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).83.322%
Langenstein & Partner AG scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Langenstein & Partner AG reaches a ranQ Trust Score of 3.8 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.

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Location

Weidrainhöchiweg 7
4623 Neuendorf

At a glance

Legal form
Corporation
UID
CHE-286.102.629
Founded
2024 · 2 years
Last commercial register change
July 20, 2026
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.
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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