EGSSIS NV is a Belgian service provider offering gas and power operations and software solutions. Founded in 2008 we employ experts with more than 25 years of experience in European energy markets. Since 30/09/2021 we are part of the Energy One Group

Energy One Limited is a supplier of software products and services to wholesale energy, environmental and carbon trading markets. Listed on the Australian Energy Stock exchange (ASX: EOL) since 2007, Energy One has a successful track record of providing sophisticated, practical solutions to Australian and international energy market customers.

Contigo is a leading supplier of Energy Trading and Risk Management (ETRM) solutions that simplify energy trading and are used by businesses in the UK and across Europe.

Based in Solihull, in the UK, it uses the latest technology and a smart approach to deliver modern, flexible and easy to use software solutions for all points in the energy value chain, including generation, wholesale and retail trading.

Contigo’s European modular energy software provides effective solutions for managing your full energy trade lifecycle, risk management, pricing and notifications.

Headquartered in Paris, eZ-nergy supplies software and services to energy, environmental and carbon trading markets across Europe. eZ-nergy works with European producers, suppliers, traders and industries. Its European energy trading software focuses on automating physical gas and power logistics and short-term portfolio balancing throughout Europe. As part of the Energy One Group, Contigo and eZ-nergy can partner to provide a unified range of solutions serving the European power and gas markets.


Simon Wheeler European CEO Energy One

30 years of experience in leadership across industires

Jan Corluy Chief Technology Officer

18 years of experience in a wide range of IT roles across the public & private sector.

Stefan Quentin Head of Sales

10 years sales & operations at Wingas and Wintershall

Jean-François Van Snick Co-Founder

10 years at Fluxys
2 years at Citibank

Dries Lamont Chief Growth Officer

10 years at start-ups including Showpad, Ground lion, C-Site
Growth Marketing Manager at EY

Your Advantage

  • Cost savings and efficiency gains for your energy portfolio.
  • Hands-on & professional 24/7 operations to optimize your energy portfolio.
  • We are a trusted partner with over 20 years of experience in European energy markets, gas & power operations, and software development.
  • Network of sister companies and reliable partners in the energy business
  • 55+ companies trust us and make use of our software and services. Check our references here
  • EGSSIS is a certified Trading Agent on ICE ENDEX and PEGAS and acts on behalf of its customers.
  • As a member of EASEE-gas, EGSSIS participates in the streamlining of business processes and market communication.

Our Mission

Our mission as a service provider is to serve you because YOU matter just as much to us as your business does. We excel when our contact is based on two levels, the human touch and the technical aspects.

At EGSSIS we are home to two kinds of people, butlers & whizzkids. The two of them are our guarantee to you, so no ‘marketing’ promise. So for you this means that our butlers are ready to serve you in the wink of an eye. With our SaaS solutions and dispatching team 24/7 to handle your operations we feed you with the most recent technical aspects of the business, show you what we have developed for you and your business and of course feed you with good company.

It is simple: we serve you the solutions that will keep your business running any time of the year, day or night. We are as fast as you need us to be. Any bump in the road, any detour , we are ready 24/7 to help you.

Meet our Butlers & Whizzkids at these events