what we

We are the UK's largest provider of Data Management services to the utilities market, managing over 55 million data records. Committed to supporting energy and gas retailers via innovative solutions and scalable services.  

Our services include: 

  • Non-Half Hourly and Half Hourly Data Collection & Data Aggregation (NHHDC/DA & HHDC/DA),
  • Elective Half Hourly Services (EHH), 
  • Business AMR, MOP & MAM (Meter Asset Management), 
  • Market Messaging and Data Loggers.

We continue to invest heavily into advanced technologies providing actionable intelligence. Providing our customers, the gift of insight into their business. 

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NHHDC/DA - Non Half Hourly Data Collection and Data Aggregation

NHHMoA - Non Half Hourly Meter Operations

MAM - Gas Meter Asset Data Flow Management

Meter Asset Provider (MAP) Data Flow Services

Smart Data Retrieval

Gas Portfolio Management

HHDC/DA Half Hourly Data Collection and Data Aggregation

Universal Supplier Service

looking towards the future.

Experts in settlement performance - since our market inception, we’ve consistently demonstrated an exemplary record, with a robust settlement process that compliments 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.

Callisto are market leaders in regulated flow management - 54% of the NHHDC outsourced market, with proven expertise in mobilising large-scale Data Management services

connecting the workforce through innovation.

with us.

Callisto is a growing business with innovation at the forefront, join us on our journey as we transform data management. Take a look at our recent job opportunities!

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