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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryIT & CommunicationSoftware DevelopmentUzwilCelsi AG
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Celsi AG

Summary

About the company

The core activity of CELSI AG is the development and implementation of software solutions with a focus on security, particularly in the areas of Smart Grid, Smart Metering and payment solutions. This also includes specific solutions such as ep2 eft/pos, CEPTEST and CelsiGuard. The company offers its customers comprehensive services, from needs analysis to the implementation of software projects, and positions itself as a software partner for companies in the energy sector and other industries that require secure connections and solutions.

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Products & services

Industry:Software Development
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Software development
Software solutions for Smart Grid, Smart Metering and payment solutions; complete software development projects with requirements analysis, design, prototyping and implementation.
Smart Grid / Smart Metering software solutions
Software solutions for Smart Grid and Smart Metering; configuration, administration and operation of smart meter gateways, secure communication, key and certificate management, reporting.
Payment solutions
Integration of payment solutions with ep2 eft/pos; test and monitoring tools, ep2 communication library, server monitoring, invoicing with credit card payments.
CEPTEST ep2 developer test tool
Test tool for creating, analyzing and displaying ep2 message structures and messages; simulates components and communication protocols with and without security headers.
Celsi ep2 monitor
Browser-based monitor for ep2 data streams; shows authorisations, reversals, runtimes, success and error cases, as well as performance data.

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Location

Bäckerweg 2
9240 Uzwil
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.157.717
Founded
1983 · 43 years
Last commercial register change
May 17, 2022
Employees
11 to 20

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