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About us



Pioneer in energy management

A continuous increase in energy efficiency and the associated conscious use of resources are our concerns. In this way, we are driving forward the energy revolution - and have been doing so for over 25 years.

How it all began

IngSoft GmbH was founded in 1997 as a result of a diploma thesis. Karsten Reese, founder and managing director of IngSoft, was studying electrical engineering in Erlangen at the time. He always had a clear goal in mind: to dedicate his professional life to energy saving. Specialized courses of study on the subject of energy management did not exist at that time.

Karsten Reese wrote his diploma thesis on the subject of "Energy controlling for small to medium-sized municipalities". From this diploma thesis the software EasyWatt was developed and from this in turn IngSoft GmbH was founded. In addition, his book DIN EN ISO 50001 in der Praxis. A Guide to Setting Up and Operating an Energy Management System (2016 edition), he has created a key fundamental work for energy managers. A true pioneer in energy management.

In close cooperation with customers, EasyWatt was continuously developed further until finally the web-based energy controlling solution "IngSoft InterWatt" was created. Since its market launch in 2004, InterWatt has won over numerous customers from industry and commerce as well as energy supply companies with its innovative features , ever-increasing automation and flexible application options.

Today, IngSoft employs around 50 people and has more than 20,000 users.

With conviction for more energy efficiency

  • We have been active in energy management for over 25 years.
  • We put our hearts and minds into achieving greater energy efficiency.
  • We support our customers in minimizing the waste of energy and resources in their area of responsibility. This is how we fight climate change together.
  • We are committed to our customers' goals in energy, climate and environmental management and greater energy efficiency out of conviction.
  • We cover the full range of knowledge to accurately understand our clients' requirements and provide them with the best possible support in implementing their energy management system.
  • We have many colleagues with training in energy technology. Some are certified energy managers.
  • We have continuously optimized and developed our software over the years in accordance with applicable standards and regulations.
  • We adapt our solutions precisely to the needs of our customers.

IngSoft in figures

We are growing steadily - in terms of sales, users and employees.

Company foundation1997
Managing DirectorDipl.-Ing, Karsten Reese
ProductEnergy management software IngSoft InterWatt
Product launchIngSoft EasyWatt: 1997 IngSoft InterWatt: 2004
Software usersover 20.000
  • Industry
  • Trade
  • Energy suppliers and energy service providers
  • Energy agencies and energy consultants
  • Research and teaching
  • Clinics
  • Churches
  • Large and small municipalities
Regularly recorded metersover 200,000
Partnershipsturn to zero

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