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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesManagement ConsultingHildisriedenGreat Circle Services GmbH
Great Circle Services GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Great Circle Services GmbH is the provision of consulting and management services in the field of aviation safety, particularly for commercial and non-commercial civil aviation. This includes: * Consulting and management of aviation safety projects * Conducting audits and inspections * Creation of handbooks and technical documentation * Training and training of personnel in the field of aviation safety The company positions itself as a specialist in aviation safety and offers its customers solutions to ensure safe and efficient aviation.

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Offering

Products & services

Industry:Management Consulting
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Great Circle Services GmbH

Testing & Inspection Centers
✓ Offered4
Consulting & Management
Advisory, interim management and management support for organisation, oversight, regulatory compliance and safety management; including air operator and CAMO/MRO certification, change management and IOSA/IS-BAO preparation.
Auditing
Audits for operations and maintenance, in particular as specialist auditors in the quality and safety management system; including compliance with EU/EASA, IOSA, IS-BAO, precertification audits and aircraft inspections.
Training
Training for senior management, authorities and safety/compliance functions; including technical documentation, EASR, SCM, human factors, auditing techniques, IS-BAO and UAS/SORA training.
Manuals & Technical Documentation
Creation and maintenance of technical documentation and manuals for commercial and non-commercial operators; including MEL, operations manual, safety management manual, MOE, CAME and other approval-specific manuals.
Trust & reputation

ranQ Trust Score of Great Circle Services GmbH: 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.

Great Circle Services GmbH 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%
Great Circle Services GmbH scores 83.0 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%
Great Circle Services GmbH 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%
Great Circle Services GmbH scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Great Circle Services GmbH 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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Location

Alpenblick 6
6024 Hildisrieden
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-112.180.062
Founded
2005 · 21 years
Last commercial register change
June 20, 2025
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.
88.0
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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