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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsAltendorfSimone Toma AG
Simone Toma AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company Simone Toma is an architecture and construction firm specializing in the planning, execution, and supervision of construction projects. The core activities include: Architecture: Design and planning of buildings and spaces Construction management: Monitoring and coordination of construction projects Client representation: Representation of the interests of clients and investors Expert opinions and appraisals: Preparation of expert opinions and appraisals for construction projects Cost estimation: Preparation of cost estimates and budgets for construction projects. The company thus offers a comprehensive range of services for the planning, execution, and supervision of construction projects.

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Products & services

Industry:Architecture Firms
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Simone Toma AG

✓ Offered10
Architecture
Refurbishments in occupied condition, new builds, complete renovations, conversions, replacement buildings, as well as energy-efficient building envelope refurbishments, pipework refurbishment and building services renovations.
Construction Management
Overall coordination of conversions and new builds, including cost estimates, invitations to tender, scheduling, cost monitoring, approvals, commissioning and construction close-out accounting.
Client Representation
Consulting and representation for new construction and real-estate purchases, including review of sale prices, defects, building fabric, need for refurbishment, contracts, financing and construction supervision.
Bills of Quantities (BOQ)
Inviting bids for construction services, preparing bills of quantities according to NPK, sample bills of quantities and overall costings for construction projects of any size.
Expert | Expert Appraiser
Neutral and independent expert reports and assessments on building defects, building damage, disputes, causes, responsibilities, additional costs and schedule delays.
Court Expert Report
Court-ordered expert reports to clarify construction defects, building damage, work execution, additional costs, schedule delays, responsibilities and remediation options.
Private Expert Report
Expert reports outside of court proceedings for technical clarification of building defects, building damage, quantity discrepancies, additional costs, dates and refurbishment options.
Arbitration Expert Report
Expert reports commissioned jointly by several parties to clarify building defects, building damage, work execution, responsibilities, additional costs and refurbishment options.
On-site Urgent Assessment
Spontaneous on-site assessment of building defects and building damage with a verbal evaluation of causes and remedial options, without a written report.
Second Opinion
Independent consultation and assessment of a construction project with a fresh external view on questions, uncertainties and fundamental considerations.
Trust & reputation

ranQ Trust Score of Simone Toma AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Simone Toma AG scores 78.9 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.78.824%
  • 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.79.710%
  • 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.78.08%
Simone Toma AG scores 84.6 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.97.712%
  • 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%
Simone Toma AG 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%
Simone Toma AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Simone Toma AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 22 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
4.7
of 5

Aggregated from 22 reviews across all connected sources

Sources
GGoogle4.722
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Talstrasse 24a
8852 Altendorf
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-286.896.768
Founded
2012 · 14 years
Last commercial register change
September 6, 2021
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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