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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateReal Estate Project DevelopmentKappel SoDella Giacoma & Krummenacher
Della Giacoma & Krummenacher Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Della Giacoma & Krummenacher is an architectural practice providing planning and project services for single-family and multi-family houses, industrial buildings, renovations and public buildings. The firm also provides real estate services including rental and sales mediation, property management, valuations and revitalization/energy consulting.

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Offering

Products & services

Industry:Real Estate Project Development
✓ Offered8
Architecture for Single-Family Houses
Design and construction of single-family houses, with documented projects in Hägendorf, Winznau, Oensingen, Kestenholz, Fulenbach, Wikon, Wangen bei Olten and Lohn-Ammannsegg.
Architecture for Multi-Family Buildings
Design and construction of multi-family buildings, with projects in Boniswil, Kappel, Winznau, Oftringen, Gretzenbach, Wangen bei Olten, Oensingen and Seon.
Management of Residential and Commercial Properties
Administrative and technical management of residential properties and commercial buildings, including refurbishments, conversions, lease law, first letting and management of condominium ownership (Stockwerkeigentum).
Property Appraisals
Valuations for banks, courts and private owners of residential and commercial buildings, taking into account location, land value, use, building condition and return.
Revitalisation Concept
Concept for the energy refurbishment of owner-occupied homes, including a revitalisation check, planning, energy advisory/GEAK®, solar solutions, building envelope, subsidies and tax matters.
Conversion and Renovation Projects
Conversions, extensions and alterations as well as full refurbishments and attic extensions, documented in projects in Lostorf, Hägendorf, Kappel, Brissago, Bellach and Olten.
Industrial Buildings
Architecture for industrial buildings, including a deep-freeze warehouse in Gunzgen (SO) and a warehouse building in Zofingen.
Public Buildings
Architecture for public buildings and projects, including the new kindergarten building in Kappel bei Olten, the development of Schloss Brestenberg and the SAC Weissmieshütte.
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4.1/5

Della Giacoma & Krummenacher

Trust & reputation

ranQ Trust Score of Della Giacoma & Krummenacher: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

Della Giacoma & Krummenacher 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%
Della Giacoma & Krummenacher scores 84.8 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.70.07%
Della Giacoma & Krummenacher 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%
Della Giacoma & Krummenacher scores 43.6 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 35.77.14%
  • 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

Della Giacoma & Krummenacher reaches a ranQ Trust Score of 4.1 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 58%, 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.

Press

Media

December 2, 2013Media
Wo einst Metall gegossen wurde sollen bald schon Menschen wohnen
solothurnerzeitung.ch

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Location

Mittelgäustrasse 33
4616 Kappel So

At a glance

Legal form
General Partnership
UID
CHE-104.754.647
Founded
1994 · 32 years
Last commercial register change
October 3, 2023
Employees
11 to 20
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.
79.0
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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