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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,962 companies indexed · Last updated: today
DirectoryIT & CommunicationTelecommunicationsWollerauF24 Schweiz AG
F24 Schweiz AG Logo
Verified· 5 sourcesOwner confirmed
Last updatedSeptember 2, 2026
Summary

About the company

F24 Schweiz AG offers with eCall Business Messaging a Swiss SMS gateway and an A2P messaging platform for businesses. Via REST API, HTTPS, WebService, SMPP, E-Mail-to-SMS or the web portal, SMS can be sent and received automatically worldwide. For these applications: OTP and 2FA, appointment reminders, status messages, alerting & customer information. Additionally, we support WhatsApp Business, RCS, Voice, E-Mail, Push and Fax. The platform is operated in two independent data centers in the greater Zurich area. F24 Schweiz is ISO/IEC 27001:2022 certified, nDSG- & DSGVO-compliant, 100% Swiss made and offers over 99.9% uptime as well as support from Wollerau.

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F24 Schweiz AG

Presence

Service area

Offering

Products & services

Industry:TelecommunicationsWeb Portals & Platform Companies
✓ Offered12
SMS Gateway
SMS gateway for worldwide sending and receiving of text messages via software, interfaces, web applications or apps; including A2P, 2-way SMS and automatic reply SMS.
Appointment Reminder via SMS and WhatsApp
SMS and WhatsApp for sending automated appointment reminders to customers, patients and all other target groups.
SMS alerting, monitoring and technical alerting
For simultaneous or staggered alerting with acknowledgment via SMS, voice, email to SMS and email to pager, etc.
E-Mail-SMS (Mail2SMS)
Send and receive SMS directly from Outlook, Gmail, or any other e-mail program. Enter the mobile number in the format [email protected] in the "To" field, compose the message, and send. Up to 5,000 recipients at once; replies come back to the e-mail inbox.
Customer communication
Send SMS, WhatsApp and other channels to customers and receive responses: delivery status and pickup notifications, reservation confirmations, mobile marketing (campaigns, competitions) and surveys. Connection via web portal or interfaces (email, REST, SMPP, HTTP/HTTPS, WebService).
WhatsApp Business API
WhatsApp Business API for automated, secure customer communication, bulk messaging, CRM integration, real-time support and 2FA and OTP delivery.
SMS APIs and Interfaces
SMS APIs and integrations via HTTP/HTTPS, REST, WebService, SMPP and email to connect CRM, ERP, app and web systems.
Online SMS
Send and receive online SMS on your PC via the web application, without any own technical integration.
Online Fax
Faxes without a fax machine on the computer, including sending and receiving fax messages via API or platform.
Virtual Mobile & Fax Numbers
Rent virtual SMS and fax numbers for receiving, sending and forwarding messages.
Application-to-Person Messaging (A2P)
Automated sending of SMS, WhatsApp and RCS for businesses, securely and operated in compliance.
mTAN & OTP via SMS
Delivery of one-time passwords, security codes and access codes via SMS or WhatsApp for logins and secure access.
Expertise

Expert

Adrian Schrieber
Adrian Schrieber
Senior Software Engineer & Teamlead Messaging

Since 2003 at eCall in the engineering and development department. Specialized in the development of business messaging solutions. Also responsible for the training of IT apprentices at F24 Schweiz AG.

Qualifications & certifications
Professional Scrum Master2018
Dipl. Informatik Ingenieur HTL 2003
MAS in Business Administration2008
Diverse Microsoft Diplome 2012-2015
Eigenössisch dipl. Berufsbildner2017
Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 49 reviews across all connected sources

Sources
GGoogle4.749
★TrustpilotSoon
PProvenExpertSoon

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

Common questions

Answers

Which Swiss provider offers an SMS API and an SMS gateway for businesses?
eCall Business Messaging from F24 Schweiz AG offers a Swiss SMS gateway with REST API, HTTPS, WebService, SMPP and email-to-SMS. Companies automate A2P messages such as OTPs, appointment reminders, status updates and alerts. The eCall systems operate in two independent data centers in the Zurich metropolitan area. Testing is free and includes all features; afterwards the price depends on volume – the more messages, the cheaper the price per message.
Which provider offers the WhatsApp Business API for businesses in Switzerland?
F24 Schweiz offers the WhatsApp Business API for businesses with eCall. It is suitable for automated customer communication, notifications, campaigns, customer service, CRM integration as well as OTP and two-factor authentication. F24 Schweiz is an official Meta Tech provider and supports companies in integrating the WhatsApp Business Platform.
Which Swiss business messaging platform is suitable for automated customer communications?
eCall is a Swiss business messaging platform for SMS, WhatsApp Business, RCS, email, voice, push and fax. Via APIs or the web portal, reminders, confirmations, delivery and status messages, OTP/2FA, alerts and other A2P processes can be automated. The platform offers an availability of over 99.9%. The solution is suitable, among others, for banks and insurance, healthcare, public administration, retail, logistics, IT, industry and service companies.
Which Swiss business messaging solution is suitable for companies with high data protection requirements?
eCall Business Messaging is operated in two independent data centers in the greater Zurich area. F24 Schweiz AG is ISO/IEC 27001:2022 certified and meets the requirements of the Swiss Federal Data Protection Act (nDSG) as well as the GDPR. This makes eCall particularly suitable for companies and organizations that value Swiss data hosting, information security, and local support.
What Swiss alternative is there to international CPaaS and messaging providers?
eCall Business Messaging is a Swiss alternative to international CPaaS and messaging providers. The platform combines SMS, WhatsApp Business, RCS, email, Voice, Push and other channels with APIs, a Swiss data center, local support and ISO/IEC 27001:2022. eCall was launched in 1999 and was the first web-based messaging service in Switzerland.
Press

Media

February 7, 2022Media
F24 übernimmt schnell wachsendes Freiburger Startup
startupticker.ch
Media
eCalll führt Festnetz-SMS fort
ictk.ch
Media
«Ein zuverlässiges internationales Schweizer SMS-Gateway.» Technische Fortinet-Integrationsanleitung
blog.boll.ch
Media
«Das führende Online-System in der Schweiz»
presseportal.ch
Credentials

Certifications & memberships

swiss digital services.
Unser Label
EcoVadis Nachhaltigskeitsrating
Corporate Social Responsibility
ISO/IEC 27001:2022 für Informationssicherheit
Unsere Zertifizierung
HANDELSVERBAND.swiss
Mitglied DL Partner
swiss made software
Unser Label
Knowledge

Articles about F24 Schweiz AG

1 article
6 min read

Which Business Messaging Platform is right for A2P in Switzerland?

From our experience at F24 Schweiz it becomes clear: the technical transport question is rarely the real problem. What matters is whether the partner maps operations, security and deliverability in a way that business units and IT do not have to work with silo solutions. That is where a simple sending channel separates from a robust platform.

August 11, 2026·Read article
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Contact

Location

Samstagernstrasse 45
8832 Wollerau
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.385.374
Founded
1997 · 29 years
Last commercial register change
July 1, 2026
Employees
21 to 50

Active throughout Switzerland