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Callisto are the largest provider of regulated data flow management to energy suppliers, providing industry regulated accredited services. We have an experienced team of 200 people, including known industry experts who are active in the review and design of future industry solutions.

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Our Benefits


Life Assurance

Discount Portal

Employee Assistance Programme

Rewards & Recognition


Health Cash Plan

Cycle to Work Scheme

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Why Work With Us

Our Vision & Values

The leading provider of regulated data management to energy suppliers





Embracing Change

This company is great to work for if you have ambition to develop your skills and experience. There is so much to learn in this industry that there is always something new to get stuck into. I first started in the business as an agent on the Olympic contact centre in 2012; now I’m a member of the Senior Leadership Team managing exciting new projects that change the future of the business and energy market. 

Samantha Holton

Projects & Mobilisations Manager - Callisto