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 · Imprint747,212 companies indexed · Last updated: today
DirectoryIndustryPlastics manufacturerWinterthurHarpo Drain AG
Harpo Drain AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Harpo Drain AG manufactures and distributes roof-drainage systems for flat roofs. Its products include vertical and horizontal roof outlets, extension elements, accessories and spare parts, as well as custom-made items; the company also provides advice on building drainage.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Plastics manufacturer
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

Harpo Drain AG

✓ Offered4
Flat roof drains
Flat-roof water drains in a modular system, available as vertical and horizontal versions, uninsulated, insulated or heatable; suitable for bitumen, concrete and various pipe types.
Extension elements
Extension elements for flat roof drains in different heights and versions, including for bitumen, Sarnafil-TG66 and as a standpipe with handle.
Accessories & spare parts
Accessories and spare parts for flat roof drains, including strainer rings, leaf guards, terrace construction kits, flat strainers, grates for exposed roofing, lip sealing rings and installation supports.
Custom-made products
Individual custom-made products for flat roof drains and related components, on request with a non-binding quotation and individual consultation.
Trust & reputation

ranQ Trust Score of Harpo Drain AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Harpo Drain 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%
Harpo Drain AG scores 82.3 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.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%
Harpo Drain AG 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%
Harpo Drain AG scores 12.0 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 35.12.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Harpo Drain 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 November 2026.

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

Knowledge

No knowledge articles yet

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

Get started
Comparisons

Harpo Drain AG in comparison

Soon

Industry comparisons are coming soon

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

Is this your company?

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

Secure profile

Location

Rümikerstrasse 48
8409 Winterthur

At a glance

Legal form
Corporation
UID
CHE-435.307.091
Founded
2014 · 12 years
Last commercial register change
July 8, 2019
Employees
1 to 10

Active in 5 of 26 cantons

  • BEBern
  • FRFribourg
  • SOSolothurn
  • SGSt. Gallen
  • ZHZurich
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

    BS
    Bernina Storen AG
    Dietikon
    AH
    ASD Herzog + Partner Handelsgesellschaft
    Illnau
    DA
    Disabo AG
    Elsau
    SG
    swissplex GmbH
    Ebmatingen
    RA
    Rowatec AG
    Volketswil
    NS
    NILOS Schweiz AG
    Otelfingen
    TF
    Tanner Formenbau AG
    Feuerthalen
    EA
    emfa-Schallschutz AG
    Unterengstringen