| Smarkets (Malta) Limited | | | gambling industry violation | 2022 | UK-GC | £630,000 |
| LeoVegas Gaming PLC | | | gambling industry violation | 2018 | UK-GC | £627,429 |
| Blue Star Planet Limited dba 10Bet | | | gambling industry violation | 2023 | UK-GC | £620,000 |
| Veoo Ltd. | | | telecommunications violation | 2019 | UK-PSA | £600,000 |
| Syncronized Limited | | | telecommunications violation | 2017 | UK-PSA | £600,000 |
| NatWest Group plc | NatWest Group PLC | financial services | consumer protection violation | 2022 | UK-CMA | £600,000 |
| Star Racing Limited | | | gambling industry violation | 2023 | UK-GC | £594,000 |
| Utilita Energy Ltd | | | consumer protection violation | 2015 | UK-OFGEM | £560,000 |
| Paymentshield Limited | | | insurance violation | 2020 | UK-CMA | £550,000 |
| Shell Energy Retail | Octopus Energy Limited | utilities and power generation | consumer protection violation | 2022 | UK-OFGEM | £536,970 |
| Churchcastle Limited | | | telecommunications violation | 2013 | UK-PSA | £525,000 |
| Locke Lord (UK) LLP | | | legal services violation | 2017 | UK-SDT | £525,000 |
| EDF | EDF-Electricite de France | utilities and power generation | consumer protection violation | 2021 | UK-OFGEM | £516,192 |
| Jumpman Gaming Limited | | | gambling industry violation | 2022 | UK-GC | £513,594 |
| Rank Digital Gaming (Alderney) Limited and Grosvenor Casinos Ltd. | | | gambling industry violation | 2018 | UK-GC | £505,000 |
| Gas Networks Ireland (UK) Limited | | | consumer protection violation | 2016 | UK-URNI | £500,000 |
| Argos Limited | J Sainsbury PLC | retailing | consumer protection violation | 2021 | UK-CMA | £500,000 |
| Cathay Pacific Airways Limited | Cathay Pacific Airways | airlines | privacy violation | 2020 | UK-ICO | £500,000 |
| CRDNN Limited | | | privacy violation | 2020 | UK-ICO | £500,000 |
| DSG Retail Limited | Currys PLC | retailing | privacy violation | 2020 | UK-ICO | £500,000 |
| Facebook | Meta Platforms Inc. | information technology | privacy violation | 2018 | UK-ICO | £500,000 |
| Equifax Ltd | Equifax | miscellaneous services | privacy violation | 2018 | UK-ICO | £500,000 |
| Gas Networks Ireland (UK) Limited | | | utility violation | 2016 | UK-NIAUR | £500,000 |
| Utilita Energy Limited | | | consumer protection violation | 2020 | UK-OFGEM | £500,000 |
| TijaMobile Ltd | | | telecommunications violation | 2016 | UK-PSA | £500,000 |
| Embill Services Limited | | | telecommunications violation | 2022 | UK-PSA | £500,000 |
| PPB Counterparty Services Limited | | | gambling industry violation | 2023 | UK-GC | £490,000 |
| PPB Counterparty Services Limited | | | gambling industry violation | 2023 | UK-GC | £490,000 |
| VGC Leeds Limited | | | gambling industry violation | 2021 | UK-GC | £471,578 |
| SSE Airtricity Gas Supply (NI) Limited and SSE Airtricity Energy Supply (NI) Limited | SSE PLC | utilities and power generation | utility violation | 2019 | UK-NIAUR | £450,000 |
| Tonybet | | | gambling industry violation | 2023 | UK-GC | £442,750 |
| Xplosion Ltd | | | telecommunications violation | 2018 | UK-PSA | £440,000 |
| Call the 118113 Helpdesk Limited | | | telecommunications violation | 2018 | UK-PSA | £425,000 |
| Betway Limited | | | gambling industry violation | 2022 | UK-GC | £408,915 |
| Bounty (UK) Limited | | | privacy violation | 2019 | UK-ICO | £400,000 |
| Carphone Warehouse | Currys PLC | retailing | privacy violation | 2018 | UK-ICO | £400,000 |
| Keurboom Communications Ltd | | | privacy violation | 2017 | UK-ICO | £400,000 |
| TalkTalk Telecom Group PLC | TalkTalk Telecom Group Limited | telecommunications | privacy violation | 2016 | UK-ICO | £400,000 |
| London North Securities Limited | | | consumer protection violation | 2010 | UK-OFT | £400,000 |
| MobBill (UK) Ltd | | | telecommunications violation | 2020 | UK-PSA | £400,000 |
| Marketbybrand Ltd | | | telecommunications violation | 2016 | UK-PSA | £400,000 |
| Numbers Plus Ltd | | | telecommunications violation | 2022 | UK-PSA | £400,000 |
| Shell Energy Retail | Octopus Energy Limited | utilities and power generation | consumer protection violation | 2019 | UK-OFGEM | £390,000 |
| Uber B.V. et al. | Uber Technologies | miscellaneous services | privacy violation | 2018 | UK-ICO | £385,000 |
| Easylife Ltd | | | privacy violation | 2023 | UK-ICO | £380,000 |
| A & S Leisure Group Limited | | | gambling industry violation | 2021 | UK-GC | £377,340 |
| Inter Inventory Company Limited | | | telecommunications violation | 2019 | UK-PSA | £375,000 |
| M.E. Media Market Limited | | | telecommunications violation | 2013 | UK-PSA | £375,000 |
| Kalastia Consulting Limited | | | telecommunications violation | 2023 | UK-PSA | £358,225 |
| Miss-sold Products UK Ltd | | | privacy violation | 2018 | UK-ICO | £350,000 |
| Your Money Rights Ltd | | | privacy violation | 2017 | UK-ICO | £350,000 |
| Prodial Ltd | | | privacy violation | 2016 | UK-ICO | £350,000 |
| Xplosion Ltd | | | telecommunications violation | 2018 | UK-PSA | £350,000 |
| Venture247 Limited | | | telecommunications violation | 2017 | UK-PSA | £350,000 |
| ElectraWorks Limited | | | gambling industry violation | 2018 | UK-GC | £350,000 |
| Green Star Energy | | | consumer protection violation | 2019 | UK-OFGEM | £350,000 |
| Vivaro Limited | | | gambling industry violation | 2023 | UK-GC | £337,631 |
| Petfre (Gibraltar) Limited | | | gambling industry violation | 2019 | UK-GC | £337,168 |
| BT Agilemedia | BT | telecommunications | telecommunications violation | 2021 | UK-PSA | £330,000 |
| Brighton & Sussex University Hospitals NHS Trust | | | privacy violation | 2012 | UK-ICO | £325,000 |
| Casino 36 Limited | | | gambling industry violation | 2019 | UK-GC | £318,648 |
| TGP Europe Ltd. | | | gambling industry violation | 2023 | UK-GC | £316,250 |
| Skill On Net Limited | | | gambling industry violation | 2023 | UK-GC | £314,229 |
| Paddy Power Holdings Ltd | Flutter Entertainment PLC | entertainment | gambling industry violation | 2016 | UK-GC | £307,250 |
| Skill On Net Limited | | | gambling industry violation | 2023 | UK-GC | £305,150 |
| Holmes Financial Solutions Ltd | | | privacy violation | 2018 | UK-ICO | £300,000 |
| True Telecom Limited | | | consumer protection violation | 2016 | UK-OFCOM | £300,000 |
| Amazecell Limited | | | telecommunications violation | 2012 | UK-PSA | £300,000 |
| BGO Entertainment Ltd | | | gambling industry violation | 2017 | UK-GC | £300,000 |
| Camelot UK Lotteries Ltd | Allwyn AG | entertainment | gambling industry violation | 2016 | UK-GC | £300,000 |
| Inspired Gaming (UK) Limited and William Hill Organisation | | | gambling industry violation | 2013 | UK-GC | £300,000 |
| Mishcon De Reya LLP | | | legal services violation | 2021 | UK-SRA | £282,500 |
| Digitaun Ltd | | | telecommunications violation | 2016 | UK-PSA | £280,000 |
| Doorstep Dispensaree Ltd | | | privacy violation | 2019 | UK-ICO | £275,000 |
| Clockfair Limited | | | gambling industry violation | 2021 | UK-GC | £271,690 |
| Shaftesbury Casino Limited | | | gambling industry violation | 2021 | UK-GC | £271,690 |
| Double Diamond Gaming Limited | | | gambling industry violation | 2021 | UK-GC | £271,530 |
| Road Accident Consult, trading as Media Tactics | | | privacy violation | 2017 | UK-ICO | £270,000 |
| Intrugo Ltd. | | | telecommunications violation | 2016 | UK-PSA | £269,906 |
| Easyleads Limited | | | privacy violation | 2017 | UK-ICO | £260,000 |
| E (Gas and Electricity) Ltd | | | consumer protection violation | 2018 | UK-OFGEM | £260,000 |
| Dynamic Mobile Billing Ltd. | | | telecommunications violation | 2022 | UK-PSA | £256,555 |
| Leads Works Ltd | | | privacy violation | 2021 | UK-ICO | £250,000 |
| Pownall Marketing Limited | | | privacy violation | 2020 | UK-ICO | £250,000 |
| Reliance Advisory Limited | | | privacy violation | 2020 | UK-ICO | £250,000 |
| Yahoo! UK Services Limited | Verizon Communications | telecommunications | privacy violation | 2018 | UK-ICO | £250,000 |
| Energy Saving Centre Ltd | | | privacy violation | 2018 | UK-ICO | £250,000 |
| Barrington Claims Limited | | | privacy violation | 2018 | UK-ICO | £250,000 |
| Check Point Claims Ltd | | | privacy violation | 2016 | UK-ICO | £250,000 |
| Sony | Sony | electrical and electronic equipment | privacy violation | 2013 | UK-ICO | £250,000 |
| Electric Ireland | | | utility violation | 2020 | UK-NIAUR | £250,000 |
| Hutchison 3G UK Ltd dba Three | CK Hutchison Holdings | diversified | consumer protection violation | 2014 | UK-OFCOM | £250,000 |
| Economy Energy Trading Limited | | | consumer protection violation | 2015 | UK-OFGEM | £250,000 |
| Spark Energy Supply Ltd | | | consumer protection violation | 2015 | UK-OFGEM | £250,000 |
| Uplink IT Solutions | | | telecommunications violation | 2021 | UK-PSA | £250,000 |
| New Level Ventures Ltd | | | telecommunications violation | 2021 | UK-PSA | £250,000 |
| Plus que PRO SAS | | | telecommunications violation | 2020 | UK-PSA | £250,000 |
| ECN Digital Ltd | | | telecommunications violation | 2020 | UK-PSA | £250,000 |
| Irich Info Technology Ltd | | | telecommunications violation | 2020 | UK-PSA | £250,000 |
| Itech Logic Ltd | | | telecommunications violation | 2020 | UK-PSA | £250,000 |
| IT Zone Limited | | | telecommunications violation | 2019 | UK-PSA | £250,000 |
