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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesCall CentersZugJK Development GmbH
JK Development GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

JK Development GmbH provides B2B call‑center and outsourcing services, including B2B telemarketing, lead generation and appointment setting, as well as the sale, verification and enrichment of company address databases. The company also offers multilingual customer‑care services, helpdesk and order handling, and scalable inbound/outbound solutions.

AI-generated
Offering

Products & services

Industry:Call Centers
✓ Offered4
B2B telemarketing
B2B telemarketing for new customer acquisition, potential and needs analyses, and appointment setting; active phone prospecting, lead generation, and phone sales.
Customer care services
Customer care services for order intake, helpdesk, 24-hour hotline, information and complaints hotline, as well as back-office support and technical support.
Business address lists and database management
Purchase, verify, and enrich business address lists; maintain the address database, select by industry, company size, and region, and identify contact details of decision-makers.
Scaling services
Scaling services with workshops and training, HubSpot CRM, social selling, and content creation to support customers and help with lead and pipeline management.
LeadhubOutbound Leads by COHAGA

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4.0/5

JK Development GmbH

Trust & reputation

ranQ Trust Score of JK Development GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

JK Development GmbH scores 64.4 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.52.124%
  • 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.74.910%
  • 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.88.08%
JK Development GmbH scores 87.7 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.95.212%
  • 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%
JK Development 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%
JK Development GmbH scores 23.6 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 35.37.14%
  • 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

JK Development GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.9 out of 5 stars from 18 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.9
of 5

Aggregated from 18 reviews across all connected sources

Sources
GGoogle3.918
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

August 3, 2024Media
JK Development übernimmt MarketingPoint
markt-kom.com
August 8, 2023Media
Frauenfelder Callcenter wird von Zuger Firma übernommen – Namen und Mitarbeitende bleiben
tagblatt.ch
July 24, 2023Media
JK Development übernimmt MarketingPoint
markt-kom.com

Knowledge

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Location

General-Guisan-Strasse 6
6300 Zug
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-218.663.773
Founded
2013 · 13 years
Last commercial register change
December 16, 2025
Employees
21 to 50
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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