Which UK companies do customers complain about most?
Regulators publish complaint figures every quarter, and most people never see them. We pull the raw numbers from Ofcom, Ofgem and the CAA, rank them sector by sector, and let you see who’s actually worth your money - and who’s counting on you giving up. Every figure here is verbatim from the regulator’s published dataset.
Data last updated: UK regulators (Ofcom, Ofgem, CAA)
- Sectors tracked
- 6
- Providers ranked
- 47
- Regulator sources
- 3
Ofcom · Ofgem · CAA
Best & worst, sector by sector
Top-5 best (lowest complaint rate) and top-5 worst (highest complaint rate) for each tracked sector.
UK aviation complaints, FY25
Lower is better. per million passengers. 10 providers tracked. Source: CAA Passenger Complaints.
Top 5 best
| Rank | Provider | per million passengers | Tier |
|---|---|---|---|
| 1 | easyJet | 147 per million | Gold |
| 2 | TAP Air Portugal | 171 per million | Standard |
| 3 | Ryanair | 188 per million | Standard |
| 4 | British Airways | 192 per million | Below average |
| 5 | airBaltic | 221 per million | Below average |
Top 5 worst
| Rank | Provider | per million passengers | Tier |
|---|---|---|---|
| 10 | Wizz Air | 918 per million | Below average |
| 9 | Air France-KLM | 301 per million | Below average |
| 8 | Turkish Airlines | 265 per million | Below average |
| 7 | EgyptAir | 234 per million | Silver |
| 6 | TUI Airways | 223 per million | Silver |
Complaining about a company in these tables?
Describe what happened and we’ll draft the letter - free to start.
For comms & PR teams
Show off your ranking - on your own site
Every provider on the index gets a free, embeddable badge with the quarter, rank and tier baked in. Drop it in a footer, press kit or product page - it stays in sync with the regulator data automatically.
Data sources & licensing
Every figure on this index is republished verbatim under the Open Government Licence v3.0 unless noted otherwise.
Aviation
CAA Passenger Complaints
Open league tableBroadband
Ofcom Quarterly Complaints
Open league tableMobile
Ofcom Quarterly Complaints
Open league tablePay-TV
Ofcom Quarterly Complaints
Open league tableLandline
Ofcom Quarterly Complaints
Open league tableEnergy
Ofgem retail-market data
Open league table
Spot a figure that looks wrong? Email index@usenoreply.com - the dataset is public and re-runnable.