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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIT & CommunicationAdvertising AgenciesWahlendorfDÜMA Consulting M. & E. Mari
DÜMA Consulting M. & E. Mari Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the creation and design of websites, particularly responsive web design, as well as the provision of services in the field of search engine optimization (SEO) and the development of online presence for businesses.

AI-generated
Offering

Products & services

Industry:Advertising Agencies
✓ Offered7
Web design
Website creation for self-employed professionals and SMEs with budget, business and premium websites, including responsive design, CMS configuration and content maintenance.
Website relaunch
Revision of existing websites with a new structure, new layout, text and image editing, technical improvements and search engine optimisation.
Search engine optimization (SEO)
Optimisation of websites for better Google rankings, more visitors and specifically defined keywords, including on-page optimisation and search engine listings.
Facebook company page
Creation and design of Facebook business pages with transferred content, contact details, images, texts and optional app integration.
App website
Creation of app solutions with configuration of the desired modules, container design, content pages, a responsive CMS template and hosting.
Internet consultation
Consultation appointment for defining goals, choosing the website scope and clarifying the formalities for the new online presence.
Support and website maintenance
Monthly support for website maintenance and upkeep, with service packages from Budget to Premium as well as Full Packet for ongoing care.
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3.8/5

DÜMA Consulting M. & E. Mari

Trust & reputation

ranQ Trust Score of DÜMA Consulting M. & E. Mari: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

DÜMA Consulting M. & E. Mari scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
DÜMA Consulting M. & E. Mari scores 81.0 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.55.07%
DÜMA Consulting M. & E. Mari 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%
DÜMA Consulting M. & E. Mari scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DÜMA Consulting M. & E. Mari reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Dorfstrasse 8
3046 Wahlendorf
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
General Partnership
UID
CHE-112.348.516
Founded
2005 · 21 years
Last commercial register change
May 13, 2005
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.
79.0
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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