NEPLAN | Company

PSI Neplan AG was founded in 1988 and develops high quality software for electrical, gas, water and district heating networks as well as specialised services related to these fields.

The company’s head office is located in Küsnacht near Zurich, Switzerland and is privately owned and fully independent.

As owner and developer of the first class analysis tool NEPLAN® the company became one of the leading companies in the power system engineering software market.

NEPLAN® is a high-end power system analysis tool for applications in transmission, distribution, generation, industrial, renewable energy systems, Smart Grid application and is used in more than 110 countries.

PSI Neplan AG is staffed of engineers with PhD and professor degrees for developing “Swiss Made” software and providing specialised consulting services and research activities, especially in the fields of renewable energy and storage.

PSI Neplan AG is member of the international NEPLAN® Consulting group, which has successfully carried out more than 1000 power system studies and consultancy work with NEPLAN®.

Mission and Vision

Our mission

The mission of PSI Neplan AG is to deliver first class Software Solutions and Services to the electrical, gas, water and district heating industry worldwide with its more than 25 years of expertise. Our professional team is dedicated first and foremost to the development of highest quality software to meet the needs and demands of our customers.

Our vision

Our Vision is to meet the challenge of achieving sustainable development in all our business areas so as to shape a better life quality for today’s and future generations.

PSI Neplan Worldwide

Sales Partners

NEPLAN® is one of the leading Power System Analysis software in the world. Small and large utilities, industrial organizations, engineering companies and universities in more than 110 countries around the world appreciate our high swiss quality products.


PSI Neplan International Sales

PSI Neplan has several representatives worldwide that can provide customer support services for existing clients and can demonstrate PSI Neplan to prospective clients. We can direct you to the nearest PSI Neplan representative if you contact us at:

PSI Neplan AG
Oberwachtstrasse 2 Phone: +41 (0)44 914 36 66
CH-8700 Küsnacht (ZH) Fax: +41 (0)44 991 19 71
Switzerland email:

PSI Neplan Representatives

PSI Neplan is seeking companies to act as representative agents for the USA, Canada, Asia, Australia, Africa and Eastern Europe. If you are interested in representing a leading Power Systems Analysis software, please contact us.


PSI Neplan is located in Küsnacht at the Lake of Zurich, 8 kilometers from Zurich Downtown and 30 minutes by car from Zurich International Airport. From Zurich Airport to Küsnacht you can take the S16 train for a 25 minutes ride. From the city of Zurich you can take both the S16 and S6 trains. From Küsnacht Main Station to the PSI Neplan headquarters you have to walk less than 5 minutes!


PSI Neplan AG
Oberwachtstrasse 2 Phone: +41 (0)44 914 36 66
CH-8700 Küsnacht (ZH) Fax: +41 (0)44 991 19 71
Switzerland email:

Job openings

PSI Neplan AG is currently expanding its team with a Senior Software Developer – Web Development and Full Stack Developer – Data Interfaces and API which support us in the development of our software. Please contact us for further information.