Find out more about the latest Callisto news.

Callisto announces Market-wide Half-Hourly data services partnership with OVO


Callisto, a leader in regulated data services in the energy sector, has been selected to provide new Smart Data Services (SDS) and Advanced Data Services...

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Our award-winning apprentice


Congratulations to Daniel Mitchell, Lead Product Owner for Callisto, who has won the Outstanding Achievement Award run by our apprenticeship provider, MTC Training. Daniel is completing...

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Happy 2nd Birthday Callisto!


Callisto, a part of M Group Services’ Energy Division and formerly the Data Management section of Morrison Data Services, officially launched two years ago and...

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M Group Services’ latest addition expands the capabilities of its data management service.


M Group Services announces it has acquired the trade and assets of Salient Systems Limited, a specialist provider of technology solutions to the UK utilities...

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Callisto’s Michael Charlton undertaking 100km charity run


In May, Michael Charlton, Data and Process Analyst at Callisto, will be running 100km (62.2 miles) to raise funds for Macmillan Cancer Support, in memory...

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Callisto secures elective half hourly data management contract with British Gas


Callisto, the largest provider of regulated data flow management to energy suppliers in the UK, and a part of M Group Services, has further enhanced...

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ELEXON’s Performance Assurance Board (PAB) approves the Re-Qualification of Callisto


We are delighted to announce that ELEXON’s Performance Assurance Board (PAB) has approved the Re-Qualification of Callisto UK, in the Non-Half Hourly (NHH) DC/DA market to 20...

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Callisto secures four-year data management contract with OVO Energy


Callisto, the largest provider of regulated data flow management to energy suppliers in the UK, and a part of M Group Services, has further enhanced...

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Callisto expands relationship with E.ON


In March 2020, E.ON announced a new customer platform which will future proof its residential and commercial UK supply business. E.ONnext confirmed that they will leverage...

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M Group Services Energy Retail introduces Callisto


The M Group Services Energy Retail Division, is excited to launch a new, data management business called “Callisto”. Formally embedded within sister operating business Morrison Data...

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using the latest technology.

Experts in settlement performance - since our market inception, we’ve consistently demonstrated an exemplary record, with a robust settlement process that complements our customers best practice for customer services and billing.

Ensuring data security is at the core of our operations. We ensure the integrity and security of customer information by designing security into our systems and processes. This is further supported through the use of secure data centres. 

Our Data Management services are delivered with a comprehensive quality assurance commitment. Business management processes are certified to ISO 9001 and information security management systems are certified to ISO 27001 providing complete security assurance.