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 · Imprint746,904 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerSt. GallenLängle & Staub GmbH
Längle & Staub GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company is a planning and engineering firm for building technology, positioning itself as a link between builders and clients as well as between idea and implementation. The core activity of the company is building technology planning, where all services are offered from a single source.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Engineer
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
4.0/5

Längle & Staub GmbH

✓ Offered4
General planning
Planning of energy and building services systems in the areas of heating, cooling, ventilation, air conditioning and sanitary; building services concepts, tenders, 3D and BIM planning, calculations, specialist site supervision and quality checks.
Sanitary planning
Sanitary planning for new builds and renovations, including concepts, projects, tenders, 3D and BIM planning, Legionella concepts and sampling, as well as expert support.
Heating – Cooling – Ventilation planning
Planning of heating, cooling and ventilation systems as part of building services planning, complemented by concepts, calculations, 3D and BIM planning, as well as specialist site supervision.
BIM
BIM planning services for building services, including concept development, creation of BIM models, clash detection, consultation and support across all project phases.
Trust & reputation

ranQ Trust Score of Längle & Staub GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Längle & Staub GmbH scores 62.7 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.72.524%
  • 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.49.510%
  • 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.50.08%
Längle & Staub 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%
Längle & Staub GmbH 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%
Längle & Staub GmbH scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Längle & Staub GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 6 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.76
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Längle & Staub GmbH has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Längle & Staub GmbH in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Längle & Staub GmbH by reviews, experience and specialisations.

Is this your company?

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

Secure profile

Location

Teufener Strasse 25
9000 St. Gallen
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-262.920.531
Founded
2014 · 12 years
Last commercial register change
May 27, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SGSt. Gallen
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

    GP
    Ghisleni Partner AG
    St. Gallen
    IE
    IG Energietechnik AG
    St. Gallen
    LS
    LD Solution GmbH
    St. Gallen
    PG
    PLANERwerk GmbH
    Wil Sg
    GG
    GEMASY GmbH
    Rüeterswil
    K+
    Kempter + Partner AG, Heizungs-, Klima-, Sanitär- und Energietechnik
    St. Gallen
    F+
    Frei + Krauer AG, Zweigniederlassung Uznach
    Uznach
    F+
    Frei + Krauer AG
    Rapperswil Sg