| Broadland Housing Association Limited | | | consumer protection violation | 2023 | UK-HOS | £75 |
| Broadway Gaming Ltd. | | | gambling industry violation | 2017 | UK-GC | £103,500 |
| Brockley Tenants Co-operative Limited | | | consumer protection violation | 2022 | UK-HOS | £100 |
| Bromford Housing Association Limited | | | consumer protection violation | 2023 | UK-HOS | £3,000 |
| Bromford Housing Association Limited | | | consumer protection violation | 2023 | UK-HOS | £950 |
| Bromford Housing Group Limited | | | consumer protection violation | 2020 | UK-HOS | £100 |
| Bromford Housing Group Limited | | | consumer protection violation | 2020 | UK-HOS | £100 |
| Bromford Housing Group Limited | | | consumer protection violation | 2022 | UK-HOS | £100 |
| Bromford Housing Group Limited | | | consumer protection violation | 2022 | UK-HOS | £150 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £175 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £200 |
| Bromford Housing Group Limited | | | consumer protection violation | 2022 | UK-HOS | £200 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £250 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £250 |
| Bromford Housing Group Limited | | | consumer protection violation | 2022 | UK-HOS | £250 |
| Bromford Housing Group Limited | | | consumer protection violation | 2020 | UK-HOS | £50 |
| Bromford Housing Group Limited | | | consumer protection violation | 2020 | UK-HOS | £50 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £50 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £50 |
| Bromford Housing Group Limited | | | consumer protection violation | 2021 | UK-HOS | £75 |
| Bromsgrove District Housing Trust Limited | | | consumer protection violation | 2023 | UK-HOS | £200 |
| Bromsgrove District Housing Trust Limited | | | consumer protection violation | 2022 | UK-HOS | £775 |
| Bromwell UK Ltd | | | consumer protection violation | 2018 | UK-PRS | £0 |
| Bronte Property Management Ltd | | | consumer protection violation | 2022 | UK-PRS | £0 |
| Brotherhood of the Cross and Star Limited | | | charity violation | 2012 | UK-CCEW | £0 |
| Brown Turner Ross Limited | | | legal services violation | 2018 | UK-SDT | £65,000 |
| Browns Solicitors (Buckinghamshire) Ltd | | | legal services violation | 2023 | UK-SRA | £0 |
| Browser Games Limited | | | telecommunications violation | 2017 | UK-PSA | £200,000 |
| Bryan Estates Ltd | | | consumer protection violation | 2023 | UK-PRS | £0 |
| BT Agilemedia | BT | telecommunications | telecommunications violation | 2021 | UK-PSA | £330,000 |
| BT Group plc | BT | telecommunications | consumer protection violation | 2020 | UK-OFCOM | £245,000 |
| BT Telecommunications plc | BT | telecommunications | telecommunications violation | 2024 | UK-OFCOM | £0 |
| BTA Properties Limited | | | consumer protection violation | 2013 | UK-OFT | £0 |
| BTC (London) Ltd | | | consumer protection violation | 2022 | UK-GLA | £5,000 |
| Buckinghamshire New University | | | consumer protection violation | 2016 | UK-CMA | £0 |
| Buckworths Limited | | | legal services violation | 2023 | UK-SRA | £2,200 |
| Budget Energy Limited | | | utility violation | 2017 | UK-NIAUR | £145,000 |
| Buglear Bate & Co | | | legal services violation | 2022 | UK-SRA | £2,600 |
| Bullion Buying Ltd. dba CashMyGold | | | consumer protection violation | 2011 | UK-OFT | £0 |
| Bungle Bugs Ltd | | | consumer protection violation | 2017 | UK-PRS | £0 |
| Bupa Insurance Services Limited | Bupa | healthcare services | privacy violation | 2018 | UK-ICO | £175,000 |
| Busoga Association (UK) | | | charity violation | 2019 | UK-CCEW | £0 |
| Buxtons Estates Ltd | | | consumer protection violation | 2020 | UK-PRS | £0 |
| Buxtons Estates UKLtd | | | consumer protection violation | 2020 | UK-PRS | £0 |
| Buzz Group Limited | | | gambling industry violation | 2021 | UK-GC | £780,000 |
| Buzz Group Ltd | | | gambling industry violation | 2021 | UK-GC | £780,000 |
| BV Gaming Limited | | | gambling industry violation | 2022 | UK-GC | £1,728,000 |
| Cab Guru Limited | | | privacy violation | 2017 | UK-ICO | £45,000 |
| Cadogan Assets Limited | | | consumer protection violation | 2023 | UK-GLA | £3,000 |
| Cadogan Assets Limited | | | consumer protection violation | 2023 | UK-GLA | £15,000 |
| Cadogan Assets Limited | | | consumer protection violation | 2023 | UK-GLA | £20,000 |
| Cadogan Assets Limited | | | consumer protection violation | 2023 | UK-GLA | £3,000 |
| Caesars Entertainment (UK) Ltd | Silver Point Capital | private equity (including portfolio companies) | gambling industry violation | 2015 | UK-GC | £875,000 |
| Caesars Entertainment UK Limited | Silver Point Capital | private equity (including portfolio companies) | gambling industry violation | 2020 | UK-GC | £13,115,000 |
| Calico Homes Limited | | | consumer protection violation | 2021 | UK-HOS | £205 |
| Call Centre Ops Limited | | | privacy violation | 2021 | UK-ICO | £120,000 |
| Call Republic Ltd. | | | telecommunications violation | 2010 | UK-PSA | £10,000 |
| Call Support | | | telecommunications violation | 2023 | UK-PSA | £1,150,000 |
| Call the 118113 Helpdesk Limited | | | telecommunications violation | 2018 | UK-PSA | £425,000 |
| Calor Gas Limited | SHV Holdings | diversified | consumer protection violation | 2024 | UK-CMA | £0 |
| Camborne Properties Limited t/a Harper Brooks | | | consumer protection violation | 2018 | UK-PRO | £0 |
| Camelot UK Lotteries Ltd | Allwyn AG | entertainment | gambling industry violation | 2016 | UK-GC | £300,000 |
| Camelot UK Lotteries Ltd | Allwyn AG | entertainment | gambling industry violation | 2018 | UK-GC | £1,150,000 |
| Camelot UK Lotteries Ltd | Allwyn AG | entertainment | gambling industry violation | 2016 | UK-GC | £3,000,000 |
| Camelot UK Ltd | Allwyn AG | entertainment | gambling industry violation | 2022 | UK-GC | £3,150,000 |
| Cameroon Refugee Association Project | | | charity violation | 2011 | UK-CCEW | £0 |
| Cameroon Youth Association | | | charity violation | 2011 | UK-CCEW | £0 |
| Cancer Care Foundation | | | charity violation | 2012 | UK-CCEW | £0 |
| Cancer Research UK | Cancer Research UK | miscellaneous services | privacy violation | 2017 | UK-ICO | £16,000 |
| Cancer Support UK | | | privacy violation | 2017 | UK-ICO | £16,000 |
| Cannons Estate Agents | | | consumer protection violation | 2016 | UK-PRS | £0 |
| Capricorn Animal Rescue and Sanctuary including Aston, Hawarden Animal Aid | | | charity violation | 2022 | UK-CCEW | £0 |
| Captive Interactive Systems Limited | | | telecommunications violation | 2012 | UK-PSA | £20,000 |
| Card Protection Plan Limited | | | insurance violation | 2012 | UK-FSA | £10,500,000 |
| Cardif Pinnacle | BNP Paribas | financial services | insurance violation | 2021 | UK-CMA | £0 |
| Cardif Pinnacle | BNP Paribas | financial services | insurance violation | 2020 | UK-CMA | £0 |
| Cardiff Law Limited | | | legal services violation | 2023 | UK-SRA | £0 |
| Cardinal Solicitors Ltd | | | legal services violation | 2021 | UK-SRA | £0 |
| Care Free Communications Ltd | | | consumer protection violation | 2018 | UK-OFCOM | £11,500 |
| Care Opinion | | | consumer protection violation | 2016 | UK-CMA | £0 |
| Care UK Health and Social Care Holdings Ltd et al. | Bridgepoint Group PLC | private equity (including portfolio companies) | consumer protection violation | 2019 | UK-CMA | £0 |
| Care UK Health and Social Care Holdings Ltd. and Care UK Community Partnerships Ltd. | Bridgepoint Group PLC | private equity (including portfolio companies) | consumer protection violation | 2020 | UK-CMA | £1,000,000 |
| Care4Calais | | | charity violation | 2023 | UK-CCEW | £0 |
| Carefree Group Ltd. | | | consumer protection violation | 2010 | UK-OFT | £0 |
| Carehome.co.uk | | | consumer protection violation | 2016 | UK-CMA | £0 |
| Carfinance 247 Limited | | | privacy violation | 2016 | UK-ICO | £30,000 |
| Carl Specter estate agents | | | consumer protection violation | 2020 | UK-PRS | £0 |
| Carltons Business Ltd. | | | consumer protection violation | 2011 | UK-OFT | £0 |
| Carpenter Singh Solicitors | | | legal services violation | 2020 | UK-SDT | £17,501 |
| Carpetright Plc | | | consumer protection violation | 2014 | UK-OFT | £0 |
| Carphone Warehouse | Currys PLC | retailing | privacy violation | 2018 | UK-ICO | £400,000 |
| Carter & Co International Real Estate Ltd | | | consumer protection violation | 2018 | UK-PRS | £0 |
| Carter Stones Limited | | | consumer protection violation | 2016 | UK-PRS | £0 |
| Cartwright Solicitors Ltd | | | legal services violation | 2021 | UK-SRA | £1,400 |
| Case Consultant Solutions Ltd | | | consumer protection violation | 2022 | UK-RPT | £358 |
| Cash Finance Direct (Holdings) Limited | | | telecommunications violation | 2015 | UK-PSA | £100,000 |
| Cash Finance Direct Limited dba Horizon Finance | | | telecommunications violation | 2010 | UK-PSA | £50,000 |
| Casino 36 Limited | | | gambling industry violation | 2019 | UK-GC | £318,648 |
| Castle keyes | | | consumer protection violation | 2020 | UK-PRS | £0 |
| Casumo Services Limited | | | gambling industry violation | 2018 | UK-GC | £5,850,000 |
| Casumo Services Limited | | | gambling industry violation | 2021 | UK-GC | £6,005,000 |
