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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringGenevaDROPSTONE Sàrl
DROPSTONE Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Dropstone is to provide consulting services in the fields of hydrogeology, geology, geothermal energy, humanitarian affairs, conflict mediation, project evaluation, infrastructure rehabilitation, institutional support and governance, as well as information management. The company also offers specialized services such as the development of project management databases, the implementation of ERP systems, and the conduct of workshops and training sessions.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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4.0/5

DROPSTONE Sàrl

✓ Offered
9
Applied hydrogeology and groundwater management
Analysis and interpretation of geological and hydrogeological data, assessment of project impacts, advice for authorities, design and supervision of boreholes, monitoring networks, flow modelling.
Geothermal energy and energy transition
Studies of geothermal potential for shallow systems, modelling of subsurface resources, support for geothermal projects within territorial planning frameworks.
Exploration geophysics
3D electrical resistivity tomography (ERT), induced polarization (IP), integration of geophysical data with existing geological and hydrogeological data.
Support for environmental authorities
Technical review of development and construction projects, studies of impacts on groundwater, assistance with authorization procedures, environmental monitoring, GIS and 3D modelling.
Humanitarian affairs and development
WASH and engineering solutions in humanitarian settings, development and rehabilitation of infrastructures, support to organizations and authorities in fragile or crisis environments.
Project evaluations and studies
Independent evaluations and analytical studies, assessment of results, implementation processes and governance, prioritized and actionable recommendations.
Institutional strategy, support and governance
Institutional diagnosis, management retreats, participatory strategic planning, change support, organizational realignment and strengthening governance frameworks.
Information management
Design and governance of information systems, data architecture, translating operational needs into technical requirements, supervision of the development of databases and tailor-made tools.
Peace mediation
Context analysis and actor mapping, facilitation of confidential dialogue, engagement with communities and authorities, negotiation of humanitarian access in conflict settings.
Trust & reputation

ranQ Trust Score of DROPSTONE Sàrl: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

DROPSTONE Sàrl scores 59.9 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.68.224%
  • 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.17.610%
  • 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.88.08%
DROPSTONE Sàrl scores 84.7 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.95.212%
  • 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%
DROPSTONE Sàrl scores 85.0 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).85.022%
DROPSTONE Sàrl 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

DROPSTONE Sàrl reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rue Hugo-De-Senger 3
1205 Geneva
Opening hours
Mon
09:00 - 18:00
Tue
09:00 - 18:00
Wed
09:00 - 18:00
Thu
09:00 - 18:00
Fri
09:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-198.543.690
Founded
2013 · 13 years
Last commercial register change
October 29, 2014
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.
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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