• Our Company

Who we are

PSI Energy Markets GmbH has been operating in the energy industry for more than 30 years, being a subsidiary of PSI Software SE, the leading software supplier in Europe’s energy industry.

We offer standard software products for energy trading, risk management and sales, asset optimization and the revision of gas metering systems. Our services cover the entire lifecycle of an IT system, from implementation over long term maintenance, support, and SaaS.

PSI Energy Markets is represented at three locations in Germany and one location in Switzerland, and is available to customers from all over the world at any time.

Our History

Our history from 1982 to today:

1982Founding of Büsing&Buchwald GmbH
2002Takeover by PSI AG
2005Integration with PSI area for energy trading and sales system
2010Change of name to PSI Energy Markets GmbH
2012Acquisition of the Time-steps AG Switzerland

Our Services

Our range of services includes the development and implementation of the following energy management B2B software systems:

Energy trading and sales                                             

Power plant optimization, decision support and risk analysis

Allocation and billing in energy trading and sales                                                                       

Revision of gas metering systems                                                                 

Our Experience

Our customers

PSI Energy Markets is your reliable solution provider in the electricity and gas industry. In addition to numerous consulting projects, our company has implemented integrated solutions for numerous energy suppliers as well as trading and distribution companies. In addition to a variety of transregional electricity and gas suppliers, our customers include many regional distributors, munic-ipal utilities and producers.

Project experience

Increasing globalization and the deregulation of the energy markets have sparked new challenges for the electricity and gas market and cross-division integration. We meet the challenges combining our industry expertise of many international projects in the field of consulting by producers, import, trading and grid companies.

Quality and Information Security Management Systems

Quality Management System

The top priority for decisions-making and actions by PSI Energy Markets is: Doing the right things right that means to combine effectiveness and efficiency. PSI Energy Markets therefore decided in 2005 to implement the Quality Management System to ensure this fundamental principle at all levels. The certification within a repeat audit by TÜV-Bayern was made for the first time in 2006. Since then, we have been operating a QM system according to ISO 9001.


PSI_Certificate _ISO 9001.pdf

Information Security Management System

The secure and reliable handling of its own and external information, data and systems is essential for PSI Energy Markets, therefore, the quality management has been expanded by including infor-mation security management to form an integrated management system. In April 2018 the initial certification was completed  in accordance with ISO-27001. Since then, we recertify every two years.

The Integrated Management System also includes guidelines on occupational safety and health


PSI_Certificate _ISO 27001.pdf

Image Brochure

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Contact Us

Telephone: +49 (0)511 6101890
Kriegerstr. 1E
30161 Hannover

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