With four locations in Switzerland, we are always close by to support you in the best possible way in the areas of alerting and crisis management, business messaging, and GRC (Governance, Risk & Compliance). Whether in Zurich, Olten, Wollerau or Marly – our team is here for you!

Your points of contact:
Business Messaging
Products: eCall, SMS-up

Yves Pierre
Grepper
Managing Director and Vice President Business Messaging

Marco
Deiss
Vice President Business Messaging
Alerting & Crisis Management
Products: FACT24, CIM

Reto Caderas
Managing Director & Head of Sales und Marketing
Business Continuity & Crisis Management
GRC (Governance, Risk & Compliance)
Product: TopEase

Timo Lutzenberger
Head of Sales & Marketing GRC
Our Subsidiaries:
F24 Schweiz AG
Office Wollerau
Samstagernstrasse 45
8832 Wollerau
T: +41 (0)44 787 30 70
Mail: office_ch@f24.com
Office Zurich
Leutschenbachstrasse 95
8050 Zurich
T: +41 (0) 44 308 39 85
Mail: info.topease@f24.com
Office Olten
Aarburgerstrasse 176
4600 Olten

F24 Schweiz AG (founded in 1997 as Dolphin Systems AG) with offices in Wollerau (Canton Schwyz) is member of the F24 Group since 2016. The company employs over 30 highly qualified staff and has over 25 years of experience in telecom and IT solution implementation, project management and software engineering. F24 Schweiz AG is ISO/IEC 27001:2022 certified.
In 2026, F24 Schweiz II GmbH (formerly Business-DNA Solutions GmbH) was merged into F24 Schweiz AG. This merger brings together F24’s expertise in Governance, Risk & Compliance (GRC), risk management and business continuity management under a unified market presence in Switzerland. The TopEase platform, developed and operated in Olten, as well as the company’s extensive expertise in customized integrations and GRC solutions, remain an integral part of the portfolio and further strengthen the comprehensive resilience offering of the F24 Group.
Yves Pierre Grepper is Managing Director and Vice President Business Messaging at F24 Switzerland. He has many years of experience in the management and transformation of marketing departments in the digital environment. Marco Deiss is Managing Director and Vice President Business Messaging at F24 Schweiz AG. He has many years of experience in the development and scaling of digital platforms as well as in the transformation of communication and IT landscapes in an omnichannel environment.
Reto Caderas is Managing Director at F24 Schweiz AG. In this role, he is responsible for the sales and marketing activities of the Business Continuity & Crisis Management service portfolio in Switzerland.
Information
• UID: CHE-107.385.374 MWST
F24 Suisse SA
Office Marly
Route de Chésalles 21b
1723 Marly
T +41 26 566 70 20
Mail: info@smsup.ch

In addition to the head-office in Wollerau, there is a branch office in Western Switzerland. SMSup Sàrl from Marly (Canton Fribourg), which specialises in SMS marketing with its employees, became a subsidiary of F24 Schweiz AG in 2022 and merged with it to form F24 Suisse SA in 2023.
Our solutions cover all areas of resilience.
Resilience
Our Business Resilience Solutions help organisations respond quickly and effectively to crises, ensure organisational continuity and strengthen overall resilience.
Business Messaging
Our Business Messaging Solutions enable fast, reliable and secure communication with customers, teams and systems – across all channels.
Service Notification
Our Service Notification Solutions help organisations deliver automated, real-time notifications for operational updates, service disruptions or urgent alerts.