| Grant Thornton UK LLP | Grant Thornton | business services | accounting fraud or deficiencies | 2015 | UK-FRC | £1,060,000 |
| Instinet Europe Limited | Nomura | financial services | investor protection violation | 2010 | UK-FSA | £1,050,000 |
| Interactive Brokers (UK) | Interactive Brokers Group | financial services | investor protection violation | 2018 | UK-FCA | £1,049,412 |
| Product Placement Sales and Marketing Consultants Limited | | | tax violations | 2020 | UK-HMRC | £1,006,335 |
| Yildiz Import Enterprise Ltd | | | tax violations | 2021 | UK-HMRC | £993,255 |
| Nicholas Kumasi Ltd | | | tax violations | 2017 | UK-HMRC | £977,819 |
| RSM Robson Rhodes LLP | Grant Thornton | business services | accounting fraud or deficiencies | 2011 | UK-FRC | £975,000 |
| Brewchoice Ltd | | | tax violations | 2018 | UK-HMRC | £956,388 |
| Fast Away Services Ltd | | | tax violations | 2017 | UK-HMRC | £945,285 |
| KPMG LLP | KPMG | business services | accounting fraud or deficiencies | 2022 | UK-FRC | £944,000 |
| Carndale Enterprises Ltd | | | tax violations | 2017 | UK-HMRC | £940,429 |
| Deloitte LLP | Deloitte | business services | accounting fraud or deficiencies | 2022 | UK-FRC | £906,250 |
| SEI Investments (Europe) Limited | | | investor protection violation | 2013 | UK-FCA | £900,200 |
| Nationwide Building Society | Nationwide Building Society | financial services | banking violation | 2020 | UK-CMA | £900,000 |
| Canara Bank | | | anti-money-laundering deficiencies | 2018 | UK-FCA | £896,100 |
| Red Trading (UK) Ltd dba Redfiz Ltd. | | | tax violations | 2017 | UK-HMRC | £890,261 |
| Anderson Security & Trading Limited dba Anderson Security Services | | | tax violations | 2017 | UK-HMRC | £880,365 |
| Asia Research and Capital Management Ltd. | | | investor protection violation | 2020 | UK-FCA | £873,118 |
| Elite Luxury Watches Ltd | | | tax violations | 2020 | UK-HMRC | £869,064 |
| C Mann Construction Limited | | | tax violations | 2022 | UK-HMRC | £850,781 |
| DB UK Bank Limited dba DB Mortgages | Deutsche Bank | financial services | mortgage abuses | 2010 | UK-FSA | £840,000 |
| Al Pacino Import and Export Limited | | | tax violations | 2017 | UK-HMRC | £831,269 |
| OTGP HK Trading Ltd | | | tax violations | 2021 | UK-HMRC | £822,910 |
| IQ EQ (Jersey) Limited | | | banking violation | 2022 | UK-JFSC | £803,661 |
| Palms Palace Ltd | | | tax violations | 2020 | UK-HMRC | £803,537 |
| Two Bros Restaurant Brands Ltd. fka MW Brands Ltd dba Sheere Khan's dba Oodles N'oodles | | | tax violations | 2020 | UK-HMRC | £798,806 |
| Arrandco Audit Ltd. | | | accounting fraud or deficiencies | 2018 | UK-FRC | £790,000 |
| Cotton Design Ltd | | | tax violations | 2021 | UK-HMRC | £779,691 |
| R. Raphael & Sons plc | | | banking violation | 2019 | UK-FCA | £775,100 |
| Northern Polymers Ltd | | | tax violations | 2019 | UK-HMRC | £773,075 |
| Baker Tilly UK Audit LLP | RSM Group | business services | accounting fraud or deficiencies | 2019 | UK-FRC | £750,000 |
| RSM UK Audit LLP | RSM Group | business services | accounting fraud or deficiencies | 2019 | UK-ICAEW | £750,000 |
| Red Jon Ltd | | | tax violations | 2022 | UK-HMRC | £739,931 |
| Biresa Limited dba Pomodoro E Basilico | | | tax violations | 2020 | UK-HMRC | £736,929 |
| Ramoo Associates UK Limited | | | tax violations | 2018 | UK-HMRC | £728,998 |
| G and GT Foods Limited | | | tax violations | 2016 | UK-HMRC | £723,333 |
| M & M (Cambridge) LLP | | | tax violations | 2021 | UK-HMRC | £720,900 |
| Siasa Telecom Ltd fka Executive Tools | | | tax violations | 2022 | UK-HMRC | £710,671 |
| Smart Construction and Civil Engineering Limited dba Smart Plant Limited | | | tax violations | 2018 | UK-HMRC | £710,495 |
| Michaels Drinks Plus Ltd | | | tax violations | 2020 | UK-HMRC | £706,447 |
| Vantage Capital Market LLP | | | investor protection violation | 2010 | UK-FSA | £700,000 |
| RSM Tenon Financial Services Limited | RSM Group | business services | investor protection violation | 2010 | UK-FSA | £700,000 |
| Touma Foreign Exchange Ltd | | | anti-money-laundering deficiencies | 2019 | UK-HMRC | £678,849 |
| Hartel Ltd | | | tax violations | 2020 | UK-HMRC | £652,197 |
| Mos Services Mid Ltd | | | tax violations | 2022 | UK-HMRC | £647,422 |
| SS Traders Ltd | | | tax violations | 2019 | UK-HMRC | £643,103 |
| Sunrise Brokers LLP | BGC Partners | financial services | anti-money-laundering deficiencies | 2021 | UK-FCA | £642,400 |
| UHY Hacker Young LLP | UHY Hacker Young | business services | accounting fraud or deficiencies | 2022 | UK-FRC | £636,385 |
| Swift 1st Limited | | | mortgage abuses | 2011 | UK-FSA | £630,000 |
| Redstone Mortgages Limited | | | mortgage abuses | 2010 | UK-FSA | £630,000 |
| Mumbai Junction Ltd | | | tax violations | 2019 | UK-HMRC | £626,462 |
| Boy Plant Ltd | | | tax violations | 2022 | UK-HMRC | £602,191 |
| Sun Life Assurance Company of Canada (UK) Limited | Sun Life Financial | financial services | investor protection violation | 2012 | UK-FSA | £600,000 |
| UAB Vaidmilda | | | tax violations | 2022 | UK-HMRC | £599,825 |
| Commerzbank AG | Commerzbank | financial services | investor protection violation | 2010 | UK-FSA | £595,000 |
| UCS Trading Limited | | | tax violations | 2020 | UK-HMRC | £592,247 |
| Aluminium Recycling (UK) Ltd | | | tax violations | 2016 | UK-HMRC | £578,497 |
| Dubhe WTC Ltd | | | tax violations | 2021 | UK-HMRC | £563,996 |
| Chase de Vere Independent Financial Advisers Limited | Swiss Life Group | financial services | investor protection violation | 2014 | UK-FCA | £560,000 |
| Cocoon Wealth LLP | | | tax violations | 2021 | UK-HMRC | £559,739 |
| Diva Dee Limited | | | tax violations | 2022 | UK-HMRC | £556,881 |
| Decon Ltd | | | tax violations | 2017 | UK-HMRC | £552,223 |
| A C Steels Ltd | | | tax violations | 2018 | UK-HMRC | £549,314 |
| MCO Capital Limited | | | anti-money-laundering deficiencies | 2013 | UK-OFT | £544,505 |
| M & G Property Development and Maintenance Ltd | | | tax violations | 2018 | UK-HMRC | £542,378 |
| Reckitt Benckiser Group Plc | Reckitt Benckiser | household and personal care products | investor protection violation | 2015 | UK-FCA | £539,800 |
| Arrow Logistics Ltd | | | tax violations | 2022 | UK-HMRC | £533,271 |
| Data Market Group Ltd | | | tax violations | 2019 | UK-HMRC | £531,004 |
| Sigma Broking Ltd. | | | investor protection violation | 2022 | UK-FCA | £531,000 |
| Cenkos Securities Plc | | | investor protection violation | 2016 | UK-FCA | £530,500 |
| LL (NI) Limited dba Mandarin Palace Restaurant dba Mandarin Palace Takeaway dba Karma Tapas Bar dba Jasmine Takeaway | | | tax violations | 2016 | UK-HMRC | £530,315 |
| Shelby Finance Limited | | | payday lending violation | 2020 | UK-CMA | £527,863 |
| Guaranty Trust Bank (UK) Limited | Guaranty Trust Bank PLC | financial services | anti-money-laundering deficiencies | 2013 | UK-FCA | £525,000 |
| Habib Bank AG Zurich | | | anti-money-laundering deficiencies | 2012 | UK-FSA | £525,000 |
| Irfan Ltd | | | anti-money-laundering deficiencies | 2022 | UK-HMRC | £524,000 |
| CGS Site Services Ltd | | | tax violations | 2018 | UK-HMRC | £519,814 |
| SRS (Sheffield) Limited | | | tax violations | 2016 | UK-HMRC | £518,734 |
| Hebe & Huhet Ltd | | | tax violations | 2022 | UK-HMRC | £516,507 |
| TM Payroll Limited | | | tax violations | 2016 | UK-HMRC | £515,471 |
| Ditto Payroll Ltd | | | tax violations | 2022 | UK-HMRC | £515,126 |
| Rowan Dartington & Co Limited | St. James's Place PLC | financial services | investor protection violation | 2010 | UK-FSA | £511,000 |
| SG Euro Trades Ltd | | | tax violations | 2021 | UK-HMRC | £503,612 |
| Blue Bell Inn Nottm Ltd | | | tax violations | 2018 | UK-HMRC | £502,673 |
| Changtel Solutions UK Ltd dba Enta Technologies Ltd. | | | tax violations | 2017 | UK-HMRC | £501,137 |
| Photo-Me International plc | | | investor protection violation | 2010 | UK-FSA | £500,000 |
| Muranda Electrical Services Ltd | | | tax violations | 2020 | UK-HMRC | £499,203 |
| Lloyds Bank Corporate Markets Plc | Lloyds Banking Group | financial services | anti-money-laundering deficiencies | 2022 | UK-JFSC | £498,000 |
| Towry Investment Management Limited | | | investor protection violation | 2011 | UK-FSA | £494,900 |
| UK Plant Sales Limited | | | tax violations | 2021 | UK-HMRC | £494,160 |
| Halo Trading Limited | | | tax violations | 2017 | UK-HMRC | £492,707 |
| MDM Global Ltd | | | tax violations | 2016 | UK-HMRC | £490,501 |
| City Index Limited | | | investor protection violation | 2011 | UK-FSA | £490,000 |
| Fio's Cash and Carry Ltd | | | tax violations | 2019 | UK-HMRC | £471,352 |
| eDistribute Ltd | | | tax violations | 2019 | UK-HMRC | £470,757 |
| Airefibre Direct Ltd | | | tax violations | 2018 | UK-HMRC | £462,790 |
| T & S Fashions Ltd | | | tax violations | 2018 | UK-HMRC | £459,270 |
| The Upper Scale Limited | | | tax violations | 2022 | UK-HMRC | £458,705 |
| Albert Spratt Construction | | | tax violations | 2019 | UK-HMRC | £455,854 |
| MSR Partners LLP | | | accounting fraud or deficiencies | 2019 | UK-ICAEW | £455,813 |
| KPMG | KPMG | business services | accounting fraud or deficiencies | 2020 | UK-FRC | £455,000 |
| JJB Sports plc | | | investor protection violation | 2011 | UK-FSA | £455,000 |
