Note: This ranking is based on the parent-subsidiary linkages at the time each penalty was announced. In cases of parent name changes, the latest name is used here. The parent names are linked to Violation Tracker UK search results in which the historical parent name appears.
| Rank | Parent at the Time of Penalty | Total Penalties  | Number of Records |
|---|---|---|---|
| 1 | Airbus | $1,021,639,861 | 8 |
| 2 | Nortel Networks | $1,000,000,000 | 1 |
| 3 | NatWest Group PLC | $706,828,931 | 33 |
| 4 | Entain PLC | $637,949,362 | 10 |
| 5 | Barclays | $575,912,704 | 29 |
| 6 | UBS | $547,645,400 | 6 |
| 7 | Rolls-Royce | $510,530,500 | 7 |
| 8 | AstraZeneca | $505,000,250 | 3 |
| 9 | Lloyds Banking Group | $472,797,681 | 48 |
| 10 | Deutsche Bank | $397,392,620 | 13 |
| 11 | JPMorgan Chase | $397,317,447 | 5 |
| 12 | HSBC | $362,536,155 | 20 |
| 13 | Citigroup | $343,843,762 | 8 |
| 14 | Taveta Investments | $343,000,000 | 1 |
| 15 | Coats Group PLC | $329,500,000 | 2 |
| 16 | Credit Suisse | $302,327,376 | 5 |
| 17 | Glencore | $280,965,092 | 2 |
| 18 | Intas Pharmaceuticals Ltd. | $262,882,238 | 3 |
| 19 | Southern Water | $220,182,092 | 105 |
| 20 | BT | $205,817,068 | 65 |
| 21 | Virgin Group | $203,149,163 | 6 |
| 22 | National Grid | $200,660,398 | 19 |
| 23 | Thames Water Utilities Ltd. | $178,978,694 | 100 |
| 24 | Banco Santander | $173,508,602 | 10 |
| 25 | Standard Chartered | $169,185,010 | 3 |
| 26 | Tesco PLC | $169,169,454 | 60 |
| 27 | Banco de Sabadell | $151,283,093 | 5 |
| 28 | Goldman Sachs | $148,491,500 | 5 |
| 29 | Alphabet Inc. | $130,000,000 | 4 |
| 30 | Serco Group | $128,498,118 | 15 |
| 31 | Bank of New York Mellon | $126,009,465 | 2 |
| 32 | Wood Group | $109,474,158 | 5 |
| 33 | Kelda Group | $109,188,228 | 96 |
| 34 | Rabobank | $105,000,000 | 1 |
| 35 | KPMG | $93,729,645 | 40 |
| 36 | International Airlines Group | $81,554,591 | 32 |
| 37 | Petrofac Limited | $77,034,625 | 6 |
| 38 | PricewaterhouseCoopers | $63,933,872 | 14 |
| 39 | Pfizer | $62,370,000 | 1 |
| 40 | Chemtura | $60,000,000 | 2 |
| 41 | International Distributions Services PLC | $58,589,634 | 86 |
| 42 | Drax Group PLC | $56,137,651 | 9 |
| 43 | Meta Platforms Inc. | $52,500,000 | 8 |
| 44 | Connect Airways | $51,885,049 | 1 |
| 45 | Nordic Capital | $51,502,933 | 5 |
| 46 | Monarch Airlines Limited | $48,154,044 | 1 |
| 47 | Bank of America | $47,811,516 | 4 |
| 48 | E.ON | $47,731,454 | 16 |
| 49 | Centrica | $45,553,894 | 28 |
| 50 | G4S | $44,434,118 | 6 |
| 51 | Cadent Gas Limited | $44,000,000 | 11 |
| 52 | Metro Bank PLC | $43,474,273 | 6 |
| 53 | Cinven Group | $41,956,620 | 2 |
| 54 | RWE AG | $41,545,529 | 10 |
| 55 | Dwr Cymru Cyfyngedig (Welsh Water) | $40,628,298 | 238 |
| 56 | Deloitte | $39,360,714 | 13 |
| 57 | Commerzbank | $38,701,084 | 3 |
| 58 | SSE plc | $38,136,895 | 35 |
| 59 | 888 Holdings PLC | $36,436,779 | 6 |
| 60 | Iberdrola | $34,797,467 | 10 |
| 61 | Go-Ahead Group PLC | $33,042,066 | 23 |
| 62 | Network Rail | $32,477,375 | 162 |
| 63 | MasterCard | $31,560,062 | 1 |
| 64 | Phoenix Group Holdings PLC | $30,814,925 | 24 |
| 65 | Homeserve plc | $30,647,400 | 1 |
| 66 | BAE Systems | $30,184,731 | 24 |
| 67 | Currys PLC | $30,154,442 | 9 |
| 68 | Prudential plc | $30,074,776 | 23 |
| 69 | National Australia Bank | $29,582,800 | 3 |
| 70 | Rio Tinto | $27,385,400 | 1 |
| 71 | Volkswagen | $26,913,861 | 4 |
| 72 | Mitsubishi UFJ Financial Group | $26,775,000 | 2 |
| 73 | Aviva PLC | $25,884,014 | 37 |
| 74 | FP McCann Limited | $25,600,176 | 15 |
| 75 | H.I.G. Capital | $25,000,000 | 2 |
| 76 | M&G PLC | $23,893,154 | 3 |
| 77 | CSL Limited | $23,000,000 | 1 |
| 78 | State Street Corp. | $22,885,000 | 1 |
| 79 | GSK plc | $22,255,000 | 7 |
| 80 | Industrial and Commercial Bank of China | $21,730,000 | 1 |
| 81 | EDF-Electricite de France | $20,299,431 | 24 |
| 82 | OVO Energy | $19,710,503 | 9 |
| 83 | Invesco | $18,652,310 | 2 |
| 84 | General Electric | $18,595,530 | 6 |
| 85 | Marriott International | $18,473,182 | 3 |
| 86 | Julius Baer Group | $18,022,500 | 1 |
| 87 | Grant Thornton | $16,957,067 | 18 |
| 88 | Weir Group PLC | $16,900,000 | 1 |
| 89 | Vanquis Banking Group | $16,781,400 | 4 |
| 90 | Alstom | $16,402,384 | 3 |
| 91 | TP ICAP PLC | $15,469,682 | 2 |
| 92 | ByteDance | $14,575,000 | 2 |
| 93 | Macquarie | $14,341,358 | 10 |
| 94 | ICAP PLC | $14,000,000 | 1 |
| 95 | Caesars Entertainment Corp. | $13,990,000 | 2 |
| 96 | J Sainsbury PLC | $13,732,680 | 24 |
| 97 | PayPoint Group | $12,500,000 | 1 |
| 98 | Telefonica | $12,010,000 | 4 |
| 99 | Equifax | $11,664,400 | 2 |
| 100 | Holtzbrinck Publishing Group | $11,263,852 | 1 |
