For Sigma, every interaction is an opportunity to create value and a long-standing relationship. Therefore, huge importance is placed, on scoring, reviewing, analysing, and improving customer interactions. As well as quality and compliance standards to continually exceed customer expectations – several of the UK’s largest energy utilities have directly entrusted Sigma to interact with their customers.

Many of our services have been developed and refined in conjunction with our clients. This approach has ensured that we have never lost sight of what is essential; our clients and their customers.