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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceRetail - General Specialty TradeSchinznach DorfKOI-BREEDER AG
KOI-BREEDER AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is trading and consulting in the field of pond construction, aquaculture and water gardening, particularly for koi and garden pond owners. The company offers a wide range of products and services, including fish, pond construction and maintenance materials, aquaculture systems, lighting and decorations. Additionally, it provides consulting and planning services for pond construction projects as well as repair and maintenance services.

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Offering

Products & services

Industry:Retail - General Specialty Trade
✓ Offered10
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KOI-BREEDER AG

Expert technical advice
Specialist advice for pond care, pond construction, koi keeping, fish feeding, filtration technology and pumps; personal consultation in the shop, and in some cases also at your home.
Pond consultations
Free advice in the shop or, for a cost contribution, at your home; support from the first consultation through to commissioning of the system.
3D CAD planning
3D planning for new installations and conversions; preparation of plans for the pond and the system so that they can be implemented by the customer, a gardener or a pond contractor.
In-house repair department and spare-parts warehouse
Repair of pumps, UV-C units and filter components; supply of spare parts for faulty items, usually with quick processing within one week.
Logistics and warehouse storage
Just-in-time delivery from a large warehouse; parcel and pallet deliveries as well as same-day collection of orders until 15:00.
Large aquariums
Three large aquariums in the showroom with a total of 15 metres of viewing glass; planted with exotic freshwater fish such as barramundi and Amazon stingrays.
Koi
Koi in different ages and quality levels, including koi from CHF 69.-, koi aged 2–6 years, and koi fascination; professionally packed, no postal shipping.
Garden pond fish
Garden pond fish for the pond, professionally packed for transport; listed together with koi, sturgeon and auction in the fish offering.
Sturgeon
Sturgeon as part of the fish offering; sale and professional packing for transport to the garden pond.
Aquaculture controls
Controls for fish farming and monitoring systems; operation via smartphone, tablet or PC to monitor water quality, oxygen levels and pH value.
Trust & reputation

ranQ Trust Score of KOI-BREEDER AG: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 100% · As of October 2026

KOI-BREEDER AG scores 93.9 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.89.324%
  • 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.100.010%
  • 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.100.08%
KOI-BREEDER AG scores 89.3 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.70.07%
KOI-BREEDER AG 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%
KOI-BREEDER AG 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

KOI-BREEDER AG reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 341 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 341 reviews across all connected sources

Sources
GGoogle4.8341
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

February 20, 2024Media
«Lebende Fossilien» kaufen und Fische aus der Hand füttern: Koi-Breeder AG wird 20 Jahre
aargauerzeitung.ch
May 19, 2023Media
Roger Wüst kandidiert für den Gemeinderat Schinznach
aargauerzeitung.ch
March 21, 2014Media
«Koi sind nicht die Ferraris im Gartenteich» – jeder kann sie sich halten
aargauerzeitung.ch

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Location

Gewerbestrasse 11
5107 Schinznach Dorf
Opening hours
Mon
08:00 - 12:00, 13:30 - 18:00
Tue
08:00 - 12:00, 13:30 - 18:00
Wed
08:00 - 12:00, 13:30 - 18:00
Thu
08:00 - 12:00, 13:30 - 20:00
Fri
08:00 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-114.396.242
Founded
2008 · 18 years
Last commercial register change
May 18, 2026
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.
100.0
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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