ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsBulleBlum Sieber Architectes Sàrl
Blum Sieber Architectes Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Blum Sieber Architectes Sàrl is an architectural firm working across all types of construction, including individual and collective housing, industrial, administrative and commercial buildings, as well as accommodation, agricultural and historic structures. Services include project design and development, renovation and transformation, construction management, energy studies (thermal assessments, CECB) and fire-safety planning (AEAI), plus preparation of tender documents.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered5
Architects' studio
Architectural design for single- and multi-family dwellings, industrial, administrative, commercial, accommodation, agricultural and historic buildings; tailor-made, sustainable and cost-effective projects.
Project studies and building permit
Preliminary studies, preliminary design, project plans, cost estimate, building permit application file and preliminary inquiry depending on the type of project.
Construction management and execution
Execution plans, construction details, site supervision, regular meetings, work schedule, cost control, invoices, warranties and final settlement.
Energy study
Thermal analyses, CECB and CECB Plus forms, energy renovations and retrofits, support for Minergie projects and procedures related to subsidies.
Fire safety
Advice and monitoring of fire protection according to AEAI, role of quality assurance officer of degree II, application of the requirements from the project stage through to acceptance.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
3.8/5

Blum Sieber Architectes Sàrl

Trust & reputation

ranQ Trust Score of Blum Sieber Architectes Sàrl: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 54% · As of October 2026

Blum Sieber Architectes Sàrl 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%
Blum Sieber Architectes Sàrl scores 59.0 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.50.012%
  • 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%
Blum Sieber Architectes 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%
Blum Sieber Architectes Sàrl scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Blum Sieber Architectes Sàrl reaches a ranQ Trust Score of 3.8 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

No knowledge articles yet

Once Blum Sieber Architectes Sàrl has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Blum Sieber Architectes Sàrl in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Blum Sieber Architectes Sàrl by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Blum Sieber Architectes Sàrl to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Rue de la Lécheretta 1
1630 Bulle
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
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-346.956.577
Founded
2023 · 3 years
Last commercial register change
July 7, 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.
76.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    TD
    TRAITS D'UNION Sàrl
    Bulle
    BI
    Bulliard Investissement SA
    Fribourg
    AA
    ABIT Architektur AG
    Meyriez
    S8
    Studio 86 Sàrl
    Broc
    SV
    S Vaucher DT
    Châtel-St-Denis
    AN
    Atelier NOVOLArch Design Noémie Volery
    Cousset
    A9
    Atelier 99 AG Architektur + Planung
    Bösingen
    BK
    Boegli Kramp Architectes SA
    Fribourg