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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureHorticulture & LandscapingIllnauJäiser + Keller AG
Jäiser + Keller AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Jäiser + Keller AG encompasses gardening, garden maintenance and garden planning. Specific services and products include: garden planning, gardening (fencing, walls, new installations, paving, slab coverings, rock gardens, ponds, terraces, stairs), garden maintenance (planting, bonsai care, cemetery maintenance, shrub care, lawn care, rose care, perennial care, pond maintenance), equipment elements (raised bed, wooden deck, pergola, planters, water features, whirlpool/sauna), KOI-special (planning/design, pond construction, filtration technology, pond maintenance, koi fish), snow removal, and special shrub care.

AI-generated
Offering

Products & services

Industry:Horticulture & Landscaping
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Jäiser + Keller AG

✓ Offered6
Garden planning
Garden planning in 2D and 3D format, idea development, project planning, material and plant selection, cost monitoring, as well as building submission and site plans.
Landscape gardening
Landscape gardening work from minor changes to complete redesigns and new installations, including fencing, walls, paving, paving-slab surfaces, rock gardens, ponds and terraces.
Garden maintenance
Garden maintenance on a subscription basis or for property management, including lawn care, pruning of shrubs, hedge and tree trimming, upkeep of patios and paths, as well as winter service and snow clearing.
Garden amenity elements
Garden amenity elements such as raised beds, wooden decks, pergolas, planter containers, water features, and also whirlpool tubs and saunas, partly produced in-house.
KOI pond construction and KOI pond maintenance
Planning and design of KOI ponds, excavation and concrete work, laying pond liner and bottom drains, installation of pond technology, as well as maintenance, cleaning and care of the pond and fish.
Snow removal
Snow removal by hand or with vehicles for paths, industrial sites, access roads and parking lots, on request or on a subscription basis.
Trust & reputation

ranQ Trust Score of Jäiser + Keller AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Jäiser + Keller AG scores 72.9 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.78.324%
  • 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.55.910%
  • 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%
Jäiser + Keller AG scores 86.1 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.92.512%
  • 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%
Jäiser + Keller AG scores 86.7 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).86.722%
Jäiser + Keller AG scores 14.3 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 35.28.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Jäiser + Keller AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.9 out of 5 stars from 8 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.98
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

September 13, 2024Media
Eine grüne Erfolgsgeschichte aus Illnau
zo-online.ch

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Location

Im Riet 7
8308 Illnau
Opening hours
Mon
07:30 - 12:00, 13:00 - 16:30
Tue
07:30 - 12:00, 13:00 - 16:30
Wed
07:30 - 12:00, 13:00 - 16:30
Thu
07:30 - 12:00, 13:00 - 16:30
Fri
07:30 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-188.959.445
Founded
2014 · 12 years
Last commercial register change
April 25, 2025
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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