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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsLa SarrazDTP SA Bureau d'études
DTP SA Bureau d'études Logo
Verified· 3 sourcesTrust Score
Summary

About the company

DTP SA Bureau d'études is an engineering and surveying office providing land surveying, geomatics and civil engineering services. The firm produces official cadastral documents, performs 3D scanning, drone and topographic surveys, pipeline detection and as-built surveys, and supports project studies, permitting, tender documentation, site supervision and implementation for road, water and wastewater infrastructure.

AI-generated
Offering

Products & services

Industry:Civil Engineering Firms
✓ Offered10
Services of surveying engineers
Services for professionals, private individuals and authorities: terrain analyses, 3D surveys, parcel division, building permits, stake-outs, site controls and land registry files.
3D surveys of complex buildings
Interior and exterior modelling for renovation, extension or transformation; 3D scanning, point clouds, façade plans, roof, sections, floors, topography and a digital terrain model.
Terrain analysis and topographic plans
Topographic study plans integrating land constraints, existing constructions, boundaries, easements, structures, trees, networks and conduits.
Parcel division and optimisation
Division and consolidation of parcels, new buildable boundaries, enhancement of construction potential, land expertise, feasibility study, LDFR and easements.
Building permits and cadastral documents
Site plans in accordance with the cadastral base scale, signed by a certified land surveying engineer.
Tenders and award
Management and monitoring of procedures, bills of quantities, submission, specifications and public contracts.
Technical and general construction management
Monitoring of execution, implementation in compliance with authorisations, requests for additional offers, financial follow-up, adherence to estimates, final statement and acceptance of the works.
Stake-out of structures and boundary point positioning
Staking out the construction, site implantation, installation of benchmarks, identification and placement of boundary markers, parcel boundaries and easements.
Geometric checks and site topographic surveys
Verification of verticality, flatness, levels and alignments; earthworks surveys, drone surveys, volume calculations, checks of measurement quantities and construction monitoring.
Land and technical dossiers after works
Technical file for the occupancy permit, update of the land register, photographic records, condition of the separate water systems, PPE, easements and rights of way.
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4.0/5

DTP SA Bureau d'études

Trust & reputation

ranQ Trust Score of DTP SA Bureau d'études: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

DTP SA Bureau d'études scores 64.2 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.76.724%
  • 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.45.610%
  • 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.50.08%
DTP SA Bureau d'études scores 80.4 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%
DTP SA Bureau d'études 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%
DTP SA Bureau d'études 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

DTP SA Bureau d'études 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 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Grand-Rue 5
1315 La Sarraz
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-224.937.660
Founded
1989 · 37 years
Last commercial register change
October 17, 2013
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.
76.0
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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