The Institute of Customer Service (ICS) has today published their first biannual UK Customer Satisfaction Index for 2025 (January), which reveals that four mobile and broadband (telecoms) providers made it into their table of the country’s top 50 organisations – Tesco Mobile (16th), Utility Warehouse (28th), Sky Mobile (41st) and giffgaff (47th).
The research typically reflects the results from a large online survey of over 15,000 customers – balanced to be representative of the UK adult population, which asked each of them about their experiences across 278 different organisations (a total of 59,500 responses were gathered). This was then used to produce a score out of 100 for each organisation.
Overall, the “Telecommunications & Media” sector reported no change in its general ranking since the last report in July 2024, with average customer satisfaction holding at a score of 73.3 (although this is still 1.4 points lower than in January 2024).
At the same time, Tesco Mobile (scored 82.5) saw their ranking rise from 20th to 16th position over the same period, while Utility Warehouse (81.3) dropped from 23rd to 28th and giffgaff (80.1) similarly fell from 32nd to 47th. But on the flip side, we saw Sky Mobile (80.2) suddenly return to the table by jumping into 41st position. The performance gap between Sky and giffgaff is small because a lot of providers were tied in the 41st and 47th positions.
The report notes that “Telecommunications and Media” is the only sector in which the number of customers experiencing a problem with an organisation (18.9%) has not fallen compared to a year ago (when it was 18.7%). But we should point out that some highly rated telecoms providers didn’t receive enough feedback to be included into the top 50 table. For example, broadband ISP WightFibre has separately reported achieving a CSI score of 90.4, which is significantly higher than both the sector average of 73.3 and the UK all-sector average of 75.8.
Sadly, the full report doesn’t include scores for all the UK mobile and broadband providers surveyed, only those that ranked high enough to be listed in the top tables.