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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsBernCity-Schlüssel Zumstein und Partner AG
City-Schlüssel Zumstein und Partner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of City Schlüssel is the consulting, planning, installation and maintenance of security and locking technology solutions, particularly in the area of doors and keys, as well as the sale of high-quality products in this field.

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Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered
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City-Schlüssel Zumstein und Partner AG

12
Mechanical locking systems
Mechanical locking systems for buildings, focused on security, locking comfort and protection against key duplication.
Mechatronic locking systems
Mechatronic locking systems for living and working, with contactless unlocking and solutions also for people with reduced mobility.
Services for locking and access systems
Advice, planning, concepts, installation, maintenance, service and repairs for customised locking and access solutions.
Escape route and emergency exit technology
Escape route safety devices and emergency exit technology for quickly leaving dangerous situations, as well as for protecting the premises.
Swing door operators, door openers & door closers
Operators, door openers and door closers to facilitate and automate opening and closing of doors.
Letterbox system
Post-standard letter and storage boxes, from single models to combinations with doorbell, intercom, video surveillance and lighting.
Burglar protection & securing
Burglar protection and access securing for buildings and areas, so that flows of people and goods work and unauthorised persons stay away.
Safes & key cabinets
Safes and key cabinets for secure storage of cash, documents, weapons, precious metals, collections and keys.
Hardware fittings
Hardware fittings for doors, windows and furniture, for opening, closing and locking, as well as for safety and burglary protection.
Sealing profiles for doors and windows
Sealing profiles for initial installation or replacement, to protect against draughts, moisture, heat loss, road noise and odours.
Engravings
Engravings for letterbox and doorbell plates, office and door labels, parking bans and other signage.
General key copies
General key copies as duplicates for replacement or if the original key is lost.
Trust & reputation

ranQ Trust Score of City-Schlüssel Zumstein und Partner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

City-Schlüssel Zumstein und Partner 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%
City-Schlüssel Zumstein und Partner AG scores 89.3 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.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%
City-Schlüssel Zumstein und Partner AG scores 83.3 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).83.322%
City-Schlüssel Zumstein und Partner AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

City-Schlüssel Zumstein und Partner 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 October 2026.

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

Knowledge

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Secure profile

Location

Kornhausplatz 7
3011 Bern

At a glance

Legal form
Corporation
UID
CHE-105.829.360
Founded
1970 · 56 years
Last commercial register change
July 26, 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.100.06%
  • 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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