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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryAssociations & Interest GroupsProfessional & Trade AssociationsZurichCRB, Schweizerische Zentralstelle für Baurationalisierung
CRB, Schweizerische Zentralstelle für Baurationalisierung Logo
Verified· 4 sourcesTrust Score
Summary

About the company

CRB, Schweizerische Zentralstelle für Baurationalisierung is a competence centre for standards in the construction and real estate sector that develops tools with professionals and partner organisations, providing catalogues, web applications and structured data for software.

AI-generated
Offering

Products & services

Industry:Professional & Trade Associations
✓ Offered
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4.3/5

CRB, Schweizerische Zentralstelle für Baurationalisierung

9
Building standards and regulations
Standards for planning, execution and operation of buildings; construction cost plans, key figures and object types, standard items, facility management fundamentals as well as web applications and licences for data use.
Construction cost plans
Construction cost plans for building works, civil engineering and BKP; structure based on elements and trades, user manuals, web applications and rules for data exchange.
NPK standard items catalogue
Catalogue of standard items for uniform specifications; standardized text modules, tendering aids, NPK web applications NPK-Editor and NPK-Viewer as well as licences.
PRD product entries
Building products information platform for searching, finding and comparing construction products; product and company entries, linked to the NPK and imported into bills of quantities.
Natural Colour System (NCS)
Colour system and colour communication using colour sample charts, design tools, colour-reading devices, teaching materials, colour management and industry-specific courses.
Continuing education
Practice-oriented continuing education with current courses, a practical handbook, company courses, offers for educational institutions and support for students.
Facility management
Fundamentals and tools for professional real-estate operation; LCC guide, ProLeMo, pbFM, EiBeV, IFMA glossary and basic AIR.
Membership
Memberships for individuals, legal entities, public-law organizations, patronage members and honorary free members; with discounts, information and access to the network.
Support / Service Desk
Support for problems and errors, questions for subject-matter experts, self-service FAQs, and help with invoices, contracts and address changes.
Trust & reputation

ranQ Trust Score of CRB, Schweizerische Zentralstelle für Baurationalisierung: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

CRB, Schweizerische Zentralstelle für Baurationalisierung scores 74.7 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.73.524%
  • 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.67.110%
  • 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%
CRB, Schweizerische Zentralstelle für Baurationalisierung scores 88.5 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.90.07%
CRB, Schweizerische Zentralstelle für Baurationalisierung scores 86.7 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).86.722%
CRB, Schweizerische Zentralstelle für Baurationalisierung scores 65.0 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.30.04%
Qualifications+0.00

CRB, Schweizerische Zentralstelle für Baurationalisierung reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 13 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.613
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

February 12, 2026Media
Hundert Tage «Value app» – ein Bericht der Entwickler der Value Methode
espazium.ch
April 11, 2024Media
Publikationen der CRB neu als E-Books erhältlich
baublatt.ch
February 16, 2022Media
NPK 335: Holzbauarbeiten korrekt und eindeutig ausschreiben
baublatt.ch
May 15, 2020Media
Chefsache mit Michel Bohren: «Ich will im Driver Seat sitzen»
baublatt.ch

Knowledge

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Location

Steinstrasse 21
8003 Zurich
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 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Association
UID
CHE-107.829.856
Founded
1963 · 63 years
Last commercial register change
August 10, 2026
Employees
51 to 100
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.73.06%
  • 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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