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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesCall CentersWallisellencallExpert AG
callExpert AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company offers services in the areas of customer service and sales. The core activities include: * Outbound services: telephone sales, telesales, customer reactivation, appointment scheduling, lead management, fundraising, donor reactivation, market and customer surveys, retention management, follow-up campaigns and address qualification. * Inbound services: customer care, order taking, response center, complaint management and outsourcing solutions. The company supports its customers in communicating with their customers and helps them achieve their sales and marketing goals.

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Offering

Products & services

Industry:Call Centers
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callExpert AG

✓ Offered12
Outbound
Outbound services for appointment setting, telesales, customer reactivation, fundraising/donations, retention management, follow-up campaigns, lead management, market and customer surveys, and event invitations.
Inbound
Inbound customer service with end-to-end customer care for phone, email, chat, and web inquiries, including first-level support, transfer to specialist teams, and service outside business hours.
Outsourcing & BPO
Outsourcing and BPO services for back office, email management, chat/sales support, onboarding, and social media management to relieve internal teams.
Appointment Setting
Binding appointment scheduling with potential or existing customers, including confirmation by email, letter, or fax, and qualification for sales.
Telesales
Telephone sales calls for new customer acquisition, cross-selling and upselling, and targeted outreach for products, services, or solutions.
End-to-end Customer Care
Omnichannel customer service for incoming calls, emails, web inquiries, and chats, including first handling, forwarding, and CRM or helpdesk integration.
Lead Management
Systematic maintenance of leads across the entire sales cycle, with CTI-assisted contact planning, follow-up contacts, and optional administrative back office tasks.
Customer Reactivation
Telephone reactivation of inactive customers with personal outreach, analysis of inactivity reasons, and recovery of orders or contacts.
Retention Management
Customer retention and churn-prevention campaigns with proactive calls, winback, CRM linkage, and analysis of customer feedback.
Follow-up Campaigns
Telephone follow-ups after mailings, email campaigns, events, webinars, or trade shows to increase response and qualified leads.
Market/Customer Surveys & NPS
Telephone market and customer surveys for needs assessment, customer satisfaction, brand perception, and measurement of the Net Promoter Score.
Event Invitations
Telephone invitation calls for customer events, webinars, expert conferences, trade shows, or roadshows, including confirmation and follow-up.
Trust & reputation

ranQ Trust Score of callExpert AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

callExpert AG scores 57.8 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.34.124%
  • 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.90.410%
  • 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%
callExpert AG scores 94.3 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.90.07%
callExpert AG 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%
callExpert AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

callExpert AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.5 out of 5 stars from 34 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
3.5
of 5

Aggregated from 34 reviews across all connected sources

Sources
GGoogle3.534
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hertistrasse 25
8304 Wallisellen
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:30
Tue
08:00 - 12:00, 13:00 - 17:30
Wed
08:00 - 12:00, 13:00 - 17:30
Thu
08:00 - 12:00, 13:00 - 17:30
Fri
08:00 - 12:00, 13:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-111.645.779
Founded
2004 · 22 years
Last commercial register change
May 21, 2026
Employees
51 to 100
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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