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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryIT & CommunicationAdvertising AgenciesBaselS.E.A. AG
S.E.A. AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of S.E.A. AG - Kulturservice.ch is the provision of services in the field of advertising and marketing, particularly in the areas of: print media (posters, flyers, signs and banners), social media and media relations, personnel and event management, and guerrilla marketing. The company offers consulting and implementation of advertising measures and supports customers in planning and executing marketing campaigns.

AI-generated
Offering

Products & services

Industry:
LeadhubOutbound Leads by COHAGA

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Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

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4.3/5

S.E.A. AG

Advertising Agencies
✓ Offered5
Poster display
Poster display for cultural events, fixed locations and indoor poster advertising in Basel and across Switzerland; on request with printing service for posters, flyers, brochures and signboards.
Flyer distribution
Flyer distribution with flyer boxes in Basel-Stadt and Basel-Land, hand-to-hand distribution at busy locations, as well as concept development, printing and distribution of flyers and brochures.
Signboards & banners
Signboards and banners along major traffic routes, including placement, coordination, professional printing, expert installation as well as removal and disposal after the campaign ends.
Staff & events
Event staff for entry, cloakroom, visitor guidance, trade fair hosts and promotion; support for major events, company parties, concerts and trade fairs.
Social media & media relations
Media support for cultural events with press releases, interview coordination and photographer support; social media and web presence for artists and events.
Trust & reputation

ranQ Trust Score of S.E.A. AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

S.E.A. AG scores 72.8 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.79.424%
  • 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.52.910%
  • 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.78.08%
S.E.A. AG scores 85.5 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%
S.E.A. 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%
S.E.A. AG scores 51.4 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 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

S.E.A. AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 7 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 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Belchenstrasse 2A
4054 Basel
Opening hours
Mon
09:00 - 12:00, 13:00 - 16:00
Tue
09:00 - 12:00, 13:00 - 16:00
Wed
09:00 - 12:00, 13:00 - 16:00
Thu
09:00 - 12:00, 13:00 - 16:00
Fri
09:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.420.292
Founded
1996 · 30 years
Last commercial register change
April 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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