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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryRetail & CommerceOnline shopWollerauHolos GmbH
Holos GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Holos GmbH is a Swiss specialist retailer of indoor plant-growing products. Its range includes grow tents, plant lighting, ventilation and irrigation equipment, growing media, fertilisers, and accessories for plant care and harvesting.

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Service area

Offering

Products & services

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4.5/5

Holos GmbH

✓ Offered12
Wholesale
Supply of private plant growers to professional gardeners; sale of grow boxes, complete sets, LED grow lights, soil, fertiliser and CO2 dispensers with advice and customer support.
Grow boxes
Grow boxes for indoor cultivation, including spare parts for grow boxes and selected complete solutions for different growing setups.
Complete sets
Complete sets for cultivation, including starter sets, Grow & Bloom, lighting sets and irrigation sets.
LED grow lights
LED grow lights from various brands, plus electronic complete fixtures, ballasts, light control, reflectors and accessories.
Climate and ventilation technology
Climate and ventilation technology for grow environments, with duct fans, activated carbon filters, climate control, air humidification, air dehumidification and odour neutralisation.
Irrigation systems
Irrigation systems, pumps, hoses, hose connectors, water tanks, osmosis systems, irrigation timers and other accessories.
Fertilisers
Fertilisers for plant cultivation, offered as a dedicated main category with a selection of brands and range.
Plant protection
Plant protection with insecticides, fungicides, beneficial insects, sulphur vaporisers, insect traps, sprayers and ozone devices.
Harvest and post-processing equipment
Equipment and accessories for harvest and post-processing, including cutting machines, drying nets, THC test devices, scales, extraction devices and pollen presses.
Cloning and propagation accessories
Rooting agents, cloning cubes and plugs, cloning tents, mini greenhouses, seedling trays, heat mats, lamps and accessories for propagation.
Substrates and pots
Substrates such as soil, coco, hydroton and rockwool, as well as pots, fabric pots, saucers and plant trays.
CBD products
CBD flowers, CBD trim, CBD hash, CBD seeds and CBD cosmetics as a dedicated product range.
Trust & reputation

ranQ Trust Score of Holos GmbH: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of November 2026

Holos GmbH scores 90.2 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.82.824%
  • 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%
Holos GmbH scores 83.0 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.55.07%
Holos GmbH 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%
Holos GmbH scores 77.1 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: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Holos GmbH reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.7 out of 5 stars from 81 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 81 reviews across all connected sources

Sources
GGoogle4.781
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Samstagernstrasse 105
8832 Wollerau
Opening hours
Mon
10:00 - 18:30
Tue
10:00 - 18:30
Wed
10:00 - 18:30
Thu
10:00 - 18:30
Fri
10:00 - 18:30
Sat
10:00 - 16:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.434.061
Founded
2001 · 25 years
Last commercial register change
March 5, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SZWollerau
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.
88.0
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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