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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesManagement ConsultingGümligenKeller Consulting
Keller Consulting Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Keller Consulting is a management consulting firm focused on management consulting and safety management. The company advises on strategy, process management and organisation, quality management, ISO certification, and occupational safety and health.

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Offering

Products & services

Industry:Management ConsultingOther Service IndustriesHome Care Services
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3.4/5

Keller Consulting

✓ Offered8
Strategy Consulting
Analysis of companies, products or services, market and competitors; development of vision, mission and corporate, product, service and market strategies, implementation and success tracking.
Process and Organisational Consulting
Analysis and optimisation of processes, structures and process networks; integration of ISO 9001, continuous improvement, process, quality, environmental and safety audits, plus reorganisation of SMEs, public administrations and large companies.
Quality Management Consulting
Implementation and development of quality management systems under ISO 9001 and related standards; measurement of customer satisfaction and employee motivation, audits, and assessment of process and product or service quality.
ISO Certification Consulting
Consulting and implementation for ISO certifications, especially ISO 9001, ISO 14001, ISO 45001, ISO 13485, IATF 16949, ISO 20000, ISO 27001 and ISO 22301, including analysis, concept, implementation and certification.
Integrated Management Systems
Consulting and development of integrated management systems for quality, occupational safety, environmental protection and risk management; analysis of existing systems, integration of stakeholder requirements, audits and training.
Occupational Safety Consulting
Analysis of hazards, risks and accident causes; development of safety and emergency concepts, inspection of machines and equipment, audits, training and implementation of occupational safety measures.
ISO 45001 Consulting
Consulting and implementation of occupational safety and health management under ISO 45001; analysis, concept, implementation, internal audit and certification, plus employee training.
Absence and Health Management
Analysis of employee health and absences, implementation of absence management systems, incentive systems and measures to reduce accident, illness and demotivation-related absences, plus training for managers.
Trust & reputation

ranQ Trust Score of Keller Consulting: 3.4 out of 5.0

Trust Score3.4/ 5.0

Solid

x

Data basis 54% · As of October 2026

Keller Consulting 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%
Keller Consulting scores 35.6 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.0.012%
  • 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%
Keller Consulting 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%
Keller Consulting scores 8.9 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 35.8.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Keller Consulting reaches a ranQ Trust Score of 3.4 out of 5.0 — rated «Solid». 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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Location

Worbstrasse 221
3073 Gümligen

At a glance

Legal form
Sole proprietorship
UID
CHE-493.242.633
Founded
2026 · 0 years
Last commercial register change
May 28, 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.
67.0
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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