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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerRothenburgJOP Josef Ottiger + Partner AG
JOP Josef Ottiger + Partner AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

JOP Josef Ottiger + Partner AG provides consultancy and planning for building services in new builds, conversions and renovations. Its services cover heating and cooling, ventilation and air conditioning, plumbing, bathroom technology, water supply, fire protection, sprinkler systems and energy consulting.

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Offering

Products & services

Industry:Engineer
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JOP Josef Ottiger + Partner AG

✓ Offered8
Heating and Cooling Planning
Consulting and planning for heating and cooling systems, including feasibility studies, condition assessments, economic calculations, refurbishments, heat pumps, waste heat recovery and solar systems.
Ventilation and Air Conditioning Planning
Individual ventilation concepts and planning of ventilation and air-conditioning systems for housing, offices, industry, hospitality, schools, swimming pools, hospitals, laboratories and parking facilities.
Sanitary Planning
Detailed sanitary planning for water supply and wastewater disposal, including feasibility studies, condition assessments, permitting processes and planning for systems and installations.
Bath and Pool Technology
Planning and calculation of bath-water treatment systems for indoor and outdoor pools, hotel pools, therapy pools, wellness pools and private swimming pools.
Water Supply Planning
Consulting, condition reports, refurbishment concepts and project and execution planning for drinking and fire-water supply, water abstraction, storage, distribution and quality assurance.
Fire Protection Planning
Fire protection planning with fire protection concepts, fire safety evidence, specialist site supervision, quality assurance, coordination with authorities and as-built documentation under applicable requirements.
Sprinkler System Planning
Precise sprinkler planning from preliminary project to completion, including variant studies, condition assessments, hydraulic calculations, redesign work, site supervision and quality assurance.
Energy Consulting
Condition assessments, energy-source evaluations, energy concepts, refurbishment concepts, subsidy guidance and support for Minergie, GEAK, LEED and SNBS labels.
Trust & reputation

ranQ Trust Score of JOP Josef Ottiger + Partner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of November 2026

JOP Josef Ottiger + Partner AG scores 64.6 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.65.024%
  • 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.52.910%
  • 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%
JOP Josef Ottiger + Partner AG scores 92.3 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.82.07%
JOP Josef Ottiger + Partner AG scores 88.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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).88.322%
JOP Josef Ottiger + Partner AG scores 25.0 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

JOP Josef Ottiger + Partner AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 7 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.3
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.37
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

June 20, 2017Media
ROTHENBURG: Ein Firmensitz wird eisgekühlt
luzernerzeitung.ch

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Location

Buzibachring 4a
6023 Rothenburg

At a glance

Legal form
Corporation
UID
CHE-105.800.296
Founded
1981 · 45 years
Last commercial register change
September 25, 2025
Employees
21 to 50

Active in 1 of 26 cantons

  • LULucerne
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.100.06%
  • 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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