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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryIT & CommunicationPR agencyZurichGromann Partner GmbH
Gromann Partner GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gromann Partner GmbH is an agency for public communication that supports authorities, municipalities, cities, cantons and administrations in strategic and operational communication. Services include communication analysis and concept development, multichannel campaigns, websites, social media content, press releases, crisis communication, branding, plain language and training.

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Offering

Products & services

Industry:PR agency
✓ Offered
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4.1/5

Gromann Partner GmbH

8
Communication concept
Communication concepts for internal and external communication, information campaigns, participation and ballot communication; with strategy, clear messages and implementable action plans.
Operational communication support (KommSupport)
Operational support for municipalities and communication offices in bottlenecks or crises; for text, graphics, social media, editorial work, project management and print handling.
Websites
Conception and implementation of websites for municipalities, cities, cantons and authorities; including information architecture, design, content creation, programming, maintenance and performance measurement.
Campaigns
Campaigns for municipalities, cities, cantons, authorities and municipal associations; from prevention and youth development to recruitment, with strategy, creative work and implementation.
Social media communication
Social media strategies and concepts for municipalities, cities and cantons; including editorial planning, content creation, performance measurement and support on Facebook, Instagram and LinkedIn.
Branding
Branding for municipalities, cities, cantons and authorities; with corporate identity, corporate design, corporate language and employer branding.
Plain language
Translation of specialist language into plain or easy language; with clear texts, structured processes, supporting graphics and short explainer videos.
Communication training
Practical trainings for employees of municipalities, administrations and public institutions; on clear phrasing, professional appearance, difficult conversations and corporate language.
Trust & reputation

ranQ Trust Score of Gromann Partner GmbH: 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.

Gromann Partner GmbH 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%
Gromann Partner GmbH scores 86.7 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.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.70.07%
Gromann Partner GmbH 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%
Gromann Partner GmbH scores 6.9 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 35.6.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gromann Partner GmbH 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.

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Location

Tramstrasse 4
8050 Zurich
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-114.409.293
Founded
2008 · 18 years
Last commercial register change
June 18, 2021
Employees
11 to 20
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

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