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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryPublic Administration & EducationContinuing Education InstitutesZurichStiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA)
Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA) Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is in the field of art and includes the conservation, restoration, documentation and mediation of artworks, as well as the support of artists and the management of estates. The company also offers services such as expertise, appraisals, inventory, photography, image editing and publications. In addition, it provides further education and workshops and has a photo archive and a register of estates of artists.

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4.4/5

Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA)

✓ Offered12
Research portal
Research portal with scientific information about art in Switzerland, searchable across the SIKART Lexicon, digital catalogues raisonnés, collections and projects, and the full SIK-ISEA data set.
Research projects
Research projects in art history and art technology on questions of the Swiss art system, with multi-method approaches and international relevance.
Publications
Scientific lexicons, catalogues raisonnés, collection catalogues and collected volumes in art history and art technology, supplemented by a list of publications and Forthcoming publications.
Fellowship Programme
Fellowship Programme mit Professorial, Postdoctoral, Doctoral und Associate Fellows sowie Partner institutions.
Swiss Art Archives
Publicly accessible Swiss art archives with letters, photographs, sketchbooks, diaries, working materials, exhibition material and press dossiers from the 19th to the 21st century.
Library
Public reference library focused on Swiss art and art history, with around 150’000 volumes, searchable via swisscovery, without lending.
Expertise and appraisals
Expertise and appraisals regarding works of art, their material value and other issues.
Conservation and restoration
Restoration of paintings, sculptures and contemporary art objects as well as conservation treatment in the field of art.
Scientific analysis
Scientific analyses of works of art and materials in connection with restoration, authentication and questions of art technology.
Examinations and authentications
Examinations and authentications of works of art to clarify attribution and authenticity.
Inventories
Inventories of works of art as a basis for long-term documentation and collection management.
Photography
Professional photographs of works of art for documentation and scientific purposes.
Trust & reputation

ranQ Trust Score of Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA): 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA) scores 80.3 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.85.024%
  • 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.77.410%
  • 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.70.08%
Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA) scores 93.6 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.90.07%
Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA) scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA) scores 61.7 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.23.34%
Qualifications+0.00

Stiftung Schweizerisches Institut für Kunstwissenschaft (SIK-ISEA) reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 20 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 20 reviews across all connected sources

Sources
GGoogle4.920
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

March 27, 2025Media
«Es braucht Personen, die sich engagieren»: Eine Expertin für Künstler-Nachlässe gibt Tipps
tagblatt.ch
September 26, 2024Media
Wohin mit den Künstlernachlässen: Für Erben sind sie mehr Last als Gewinn
luzernerzeitung.ch

Knowledge

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Location

Zollikerstrasse 32
8008 Zurich
Opening hours
Mon
08:30 - 12:00, 13:30 - 17:30
Tue
08:30 - 12:00, 13:30 - 17:30
Wed
08:30 - 12:00, 13:30 - 17:30
Thu
08:30 - 12:00, 13:30 - 17:30
Fri
08:30 - 12:00, 13:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Foundation
UID
CHE-106.103.828
Founded
1993 · 33 years
Last commercial register change
April 7, 2026
Employees
51 to 100
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.97.06%
  • 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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