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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryCourtelaryJema S.A.
Jema S.A. Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Jema SA is the development, manufacture and marketing of specialized machines for industry, particularly for the watchmaking industry, as well as mechanical manufacturing and distribution of spare parts such as pallets. The main products include: ultrasonic cleaning machines, machines for lubricating small parts, and pallets made of stainless steel and other materials for its own machines and other brands. The company also offers services such as mechanical manufacturing, repair and maintenance.

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Products & services

Industry:Mechanical Engineering IndustryWatch Industry
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4.1/5

Jema S.A.

✓ Offered7
Parts washing machines
Parts washing machines for the watchmaking industry, with or without ultrasonic technology, including ATEX-certified versions.
Lubrication machines
Lubrication machines for small parts, in particular Mini-Lubro 2 and Lubromatic III.
Precision machining and CNC
Precision mechanics workshop for all types of CNC machining, with general mechanical services.
Engineering office
Engineering office for the development and technical support of machines and industrial projects.
After-sales service
After-sales service for the machines, including follow-up and assistance after delivery.
Breakdown service
Breakdown service for machines and assistance in case of breakdowns or when technical intervention is required.
Stainless-steel baskets and accessories
Stainless-steel baskets, coated baskets, baskets made of perforated sheet metal, Ketron plates, basket holders and lists of standard baskets.
Trust & reputation

ranQ Trust Score of Jema S.A.: 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.

Jema S.A. 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%
Jema S.A. 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%
Jema S.A. scores 83.3 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).83.322%
Jema S.A. scores 40.0 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 35.40.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jema S.A. 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.

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Location

Les Pâquerettes 10
2608 Courtelary

At a glance

Legal form
Corporation
UID
CHE-106.283.475
Founded
1971 · 55 years
Last commercial register change
June 23, 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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