| 1 | Sage Online Holdings Limited Newcastle Upon Tyne | £701.0M | — |
| 2 | Penguin Random House Limited London | £436.4M 2024 accounts | — |
| 3 | Forbes Digital Marketing Limited London Turnover £59.2M | £315.5M | £59.2M |
| 4 | Ironsource UK Limited London Turnover £118.8M | £307.9M | £118.8M |
| 5 | Nexxen Holdings Ltd London | £271.9M 2020 accounts | — |
| 6 | Music Holdings Limited London | £253.3M | — |
| 7 | Wavemaker Limited London Turnover £169.5M | £252.1M | £169.5M |
| 8 | The Random House Group Limited London Turnover £255.1M | £229.2M 2024 accounts | £255.1M |
| 9 | Gram Games Limited London | £226.5M 2023 accounts | — |
| 10 | Penguin Books Limited London Turnover £247.2M | £157.7M 2024 accounts | £247.2M |
| 11 | Rebellion Developments Limited Oxford Turnover £71.8M | £93.6M | £71.8M |
| 12 | Anaplan Limited Bristol Turnover £343.5M | £87.9M | £343.5M |
| 13 | GL Assessment Limited Swindon Turnover £57.9M | £87.5M 2024 accounts | £57.9M |
| 14 | Essencemediacom North Limited London Turnover £46.1M | £59.7M 2024 accounts | £46.1M |
| 15 | Ceg Media Music Limited London | £44.1M | — |
| 16 | Qognify Limited London Turnover £3.5M | £43.9M 2022 accounts | £3.5M |
| 17 | Appian Europe Limited London Turnover £39.0M | £40.3M 2024 accounts | £39.0M |
| 18 | Sanctuary Records Group Limited London Turnover £20.7M | £34.2M | £20.7M |
| 19 | Iconic Media Holdings Limited London | £30.7M | — |
| 20 | Encompass Digital Media Emea Limited London Turnover £0 | £28.7M 2019 accounts | £0 |
| 21 | Bad Wolf Ltd Cardiff | £28.1M | — |
| 22 | Magnite Limited London Turnover £24.2M | £27.3M 2024 accounts | £24.2M |
| 23 | Steel City Interactive Ltd Sheffield | £25.9M 2024 accounts | — |
| 24 | Lostmy.Name Ltd London Turnover £33.9M | £24.5M | £33.9M |
| 25 | Enterprisedb UK Limited London Turnover £12.3M | £22.9M 2021 accounts | £12.3M |
| 26 | Unilink Software Limited London Turnover £18.4M | £22.9M | £18.4M |
| 27 | Vice UK Limited London | £22.3M | — |
| 28 | W F Howes Limited Leicester | £21.5M 2024 accounts | — |
| 29 | Sportority UK Ltd London | £21.0M | — |
| 30 | The Specialist Works Limited London Turnover £87.7M | £20.6M 2020 accounts | £87.7M |
| 31 | Little Tiger Press Limited London Turnover £34.8M | £19.4M 2024 accounts | £34.8M |
| 32 | Boneloaf Limited Sheffield | £18.8M 2020 accounts | — |
| 33 | Hope Studios UK Ltd London | £18.6M | — |
| 34 | Censuswide Limited London | £18.3M | — |
| 35 | Venatus Media Limited London | £18.0M | — |
| 36 | Spaw Productions Limited London | £17.8M | — |
| 37 | Rose Line Productions Limited London | £17.0M | — |
| 38 | Films at 59 Limited Bristol Turnover £11.8M | £16.7M 2024 accounts | £11.8M |
| 39 | Imagine Communications Emea (UK) Ltd. Kingston Upon Thames Turnover £42.8M | £16.6M 2019 accounts | £42.8M |
| 40 | Frederick Warne & Co Limited London Turnover £19.6M | £15.9M 2024 accounts | £19.6M |
| 41 | CC4L Limited London Turnover £12.1M | £15.9M | £12.1M |
| 42 | Reel Cinemas Limited Loughborough Turnover £16.1M | £15.4M 2025 accounts | £16.1M |
| 43 | More2 Limited Bournemouth | £15.2M | — |
| 44 | Eleven Miles Limited Bournemouth | £14.9M | — |
| 45 | Gravity London Limited London | £14.5M 2023 accounts | — |
| 46 | Join the Dots (Research) Ltd Manchester | £14.4M 2024 accounts | — |
| 47 | Bandicoot Scotland Limited Glasgow Turnover £14.8M | £14.2M 2024 accounts | £14.8M |
| 48 | Atp Media Operations Limited Wimbledon | £14.2M | — |
| 49 | H.H. Saudi Research and Marketing (UK) Limited London Turnover £17.9M | £14.0M 2023 accounts | £17.9M |
| 50 | Plugin Boutique Limited Lewes | £13.5M | — |
| 51 | Silverback Films Ltd London | £13.2M 2024 accounts | — |
| 52 | Aptem Ltd London Turnover £9.1M | £13.1M | £9.1M |
| 53 | Timeline Television Limited Reading | £13.0M 2024 accounts | — |
| 54 | Stark Software International Ltd. Horley Turnover £49.6M | £12.9M | £49.6M |
| 55 | Freud Communications Limited London Turnover £27.9M | £12.3M 2024 accounts | £27.9M |
| 56 | Filmbox International Ltd. London | £11.8M 2023 accounts | — |
| 57 | Gti Futures Limited London Turnover £6.3M | £11.7M 2021 accounts | £6.3M |
| 58 | Blue Zoo Productions Limited London | £11.6M | — |
| 59 | The Tolkien Estate Limited Oxford | £11.2M 2024 accounts | — |
| 60 | Virgin Books Limited London Turnover £6.2M | £11.0M 2024 accounts | £6.2M |
| 61 | See-Saw Films (TV) Limited London | £11.0M | — |
| 62 | Profile Books Limited London Turnover £21.5M | £10.5M 2025 accounts | £21.5M |
| 63 | Crimson Limited Birmingham | £10.5M 2025 accounts | — |
| 64 | HSJ Information Ltd. London Turnover £20.2M | £10.3M | £20.2M |
| 65 | Wake Up Productions Limited London | £10.1M 2024 accounts | — |
| 66 | Context World Limited Horsforth | £10.1M 2024 accounts | — |
| 67 | Datateam Business Media Limited Maidstone | £10.0M | — |
| 68 | Radiant Media Holdings Limited London | £9.9M 2024 accounts | — |
| 69 | Farmers Guardian Limited London | £9.7M 2024 accounts | — |
| 70 | Evolve Ooh Limited London | £9.7M 2023 accounts | — |
| 71 | Fincore Limited London Turnover £21.1M | £9.7M 2024 accounts | £21.1M |
| 72 | Canongate Books Limited | £9.6M 2024 accounts | — |
| 73 | Intapp Limited London Turnover £47.5M | £9.6M 2024 accounts | £47.5M |
| 74 | Financial Data Management Limited London Turnover £21.8M | £9.6M 2024 accounts | £21.8M |
| 75 | Edward Elgar Publishing Limited Cheltenham Turnover £13.8M | £9.3M 2024 accounts | £13.8M |
| 76 | Goodstuff Holdings Limited London | £9.1M 2024 accounts | — |
| 77 | Integrated International Payroll Limited Cheltenham | £9.0M | — |
| 78 | Snipple Animation Studios Ltd London | £8.9M | — |
| 79 | Datamine International Limited Bristol Turnover £10.7M | £8.9M 2020 accounts | £10.7M |
| 80 | Hal Leonard Europe Limited London | £8.9M 2024 accounts | — |
| 81 | New Commercial Arts London Limited London | £8.7M 2023 accounts | — |
| 82 | Puzzler Media Limited London | £8.6M | — |
| 83 | Fulwell 73 Limited London Turnover £10.0M | £8.6M 2019 accounts | £10.0M |
| 84 | Fresh Approach (UK) Limited Manchester Turnover £14.3M | £8.5M | £14.3M |
| 85 | Side UK Limited London Turnover £18.6M | £8.4M 2024 accounts | £18.6M |
| 86 | New York Times Limited London Turnover £35.8M | £8.3M 2024 accounts | £35.8M |
| 87 | Basis Research Limited Oxford | £8.3M | — |
| 88 | Incisive Business Media Limited London | £8.3M 2024 accounts | — |
| 89 | Alliance Films (UK) Development Limited London | £8.2M 2023 accounts | — |
| 90 | Teads Limited London | £7.7M | — |
| 91 | Openbet Retail Limited London Turnover £1.7M | £7.5M | £1.7M |
| 92 | John Ayling and Associates Limited London | £7.4M 2024 accounts | — |
| 93 | Eleven Film Limited London | £7.3M | — |
| 94 | Datawrkz Operations UK Ltd Bournemouth | £7.3M 2025 accounts | — |
| 95 | Red Interactive Limited London Turnover £6.6M | £7.1M 2023 accounts | £6.6M |
| 96 | Woodlands Books Limited London Turnover £6.5M | £7.1M 2024 accounts | £6.5M |
| 97 | Plaion Limited Theale | £7.0M 2023 accounts | — |
| 98 | Belmont Press Limited Northampton | £6.9M 2024 accounts | — |
| 99 | Heni Soho Limited London Turnover £31.3M | £6.6M 2024 accounts | £31.3M |
| 100 | Opuspond Limited Leicester | £6.4M 2024 accounts | — |
| 101 | 23Red Limited London Turnover £9.9M | £6.4M 2022 accounts | £9.9M |
| 102 | Stackadapt UK Limited London Turnover £44.0M | £6.4M | £44.0M |
| 103 | Washington Green Fine Art Group Limited Birmingham | £6.3M 2024 accounts | — |
| 104 | Metropolis London Music Limited Guildford | £6.2M 2019 accounts | — |
| 105 | Ladybird Books Limited London Turnover £34.2M | £6.2M 2024 accounts | £34.2M |
| 106 | Northstar Travel Media UK Limited London | £5.9M 2019 accounts | — |
| 107 | Cutting Edge Music Publishing Limited London | £5.9M | — |
| 108 | Space & Time Media Limited Bournemouth | £5.9M 2025 accounts | — |
| 109 | Drummond Central Limited Newcastle Upon Tyne | £5.8M | — |
| 110 | Believe Direct Limited London Turnover £6.1M | £5.8M 2019 accounts | £6.1M |
| 111 | Wolfram Research Europe Limited Witney Turnover £10.8M | £5.7M 2024 accounts | £10.8M |
| 112 | The Kite Factory Limited London | £5.7M 2024 accounts | — |
| 113 | A10 Networks Limited London | £5.6M 2020 accounts | — |
| 114 | BDRC Continental Limited London Turnover £13.8M | £5.5M | £13.8M |
| 115 | Incisive Business Media (IP) Limited London | £5.4M | — |
| 116 | Adaptavist Ventures Ltd London | £5.4M 2019 accounts | — |
| 117 | Product Marketing Alliance Limited London | £5.1M 2023 accounts | — |
| 118 | Nexus Productions Limited London | £5.1M | — |
| 119 | Teemill Tech Ltd Freshwater | £5.1M 2024 accounts | — |
| 120 | Frontiers Media Limited Esher Turnover £28.2M | £5.1M | £28.2M |
| 121 | Times Internet (UK) Ltd Middx Turnover £27.9M | £5.0M 2023 accounts | £27.9M |
| 122 | Coffee and TV Limited London Turnover £6.1M | £4.9M 2023 accounts | £6.1M |
| 123 | Parkway Entertainment Company Limited North East Lincolnshire Turnover £6.2M | £4.9M | £6.2M |
| 124 | Kaltura Europe Limited London Turnover £52.7M | £4.9M 2024 accounts | £52.7M |
| 125 | RPM London Limited Shepherds Bush Turnover £10.1M | £4.9M | £10.1M |
| 126 | Smuggler London Limited London | £4.9M | — |
| 127 | Black Bear Pictures UK Limited London | £4.9M 2024 accounts | — |
| 128 | Flextrade UK Limited London Turnover £16.0M | £4.8M 2020 accounts | £16.0M |
| 129 | Pressdram Limited London Turnover £11.0M | £4.8M | £11.0M |
| 130 | Learndirect Limited Bournemouth Turnover £23.6M | £4.8M 2023 accounts | £23.6M |
| 131 | N19W99 Limited London Turnover £45.7M | £4.8M | £45.7M |
| 132 | Brinkworth Productions Limited London | £4.8M 2023 accounts | — |
| 133 | Peoplescout Limited London | £4.7M 2024 accounts | — |
| 134 | Hello Limited London | £4.6M | — |
| 135 | Heyday Films Limited Borehamwood Turnover £23.9M | £4.5M | £23.9M |
| 136 | Group M Services Limited Derby | £4.4M | — |
| 137 | M B Advertising and Marketing Ltd Sheffield | £4.4M | — |
| 138 | Acquia Ltd Cheltenham Turnover £14.1M | £4.4M 2020 accounts | £14.1M |
| 139 | Bopper Media Ltd London Turnover £15.9M | £4.3M | £15.9M |
| 140 | Pendo.Io UK Ltd London Turnover £21.2M | £4.3M 2025 accounts | £21.2M |
| 141 | Quadrille Publishing Limited London Turnover £25.6M | £4.2M 2024 accounts | £25.6M |
| 142 | Maverick Advertising & Design Limited London Turnover £7.9M | £4.2M | £7.9M |
| 143 | Wag Entertainment Limited London | £4.2M | — |
| 144 | Hybrid News Limited Bristol Turnover £27.8M | £4.1M 2024 accounts | £27.8M |
| 145 | Mediaplus UK (London) Ltd London Turnover £92.2M | £4.1M 2023 accounts | £92.2M |
| 146 | Kelsey Publishing Limited Maidstone | £4.1M 2024 accounts | — |
| 147 | Loaded Records Limited London Turnover £2.7M | £4.0M | £2.7M |
| 148 | Hart & Wilcox Limited Tendring | £4.0M | — |
| 149 | Republic of Media Limited Manchester | £3.9M 2025 accounts | — |
| 150 | I.F.F Research Limited London | £3.9M 2025 accounts | — |
| 151 | Generation Media Limited Henley-On-Thames | £3.9M | — |
| 152 | Flame Tree Publishing Ltd. London Turnover £11.1M | £3.9M | £11.1M |
| 153 | Hay House UK Limited London Turnover £9.9M | £3.9M 2024 accounts | £9.9M |
| 154 | Cadran Services Limited London Turnover £18.2M | £3.9M | £18.2M |
| 155 | Employee Pulsecheck Limited London | £3.7M 2020 accounts | — |
| 156 | Epic Games UK Ltd London Turnover £28.0M | £3.7M 2019 accounts | £28.0M |
| 157 | Selectapension Limited Crowborough Turnover £2.3M | £3.7M | £2.3M |
| 158 | Journey Further Limited Barnsley | £3.6M | — |
| 159 | Spectator (1828) Limited(the) | £3.6M | — |
| 160 | Cherry Advertising Limited London Turnover £12.5M | £3.5M 2022 accounts | £12.5M |
| 161 | Stink Limited London | £3.5M | — |
| 162 | Splice Post Limited London | £3.4M | — |
| 163 | Nerial Ltd Brighton Turnover £933.3k | £3.4M 2024 accounts | £933.3k |
| 164 | Exel Computer Systems PLC Nottingham | £3.3M | — |
| 165 | Coursera UK Limited London | £3.3M 2020 accounts | — |
| 166 | Everyone TV Devices Limited London Turnover £24.2M | £3.2M 2024 accounts | £24.2M |
| 167 | Accord Marketing Limited London Turnover £28.8M | £3.2M 2024 accounts | £28.8M |
| 168 | Electric Theatre Collective Limited London Turnover £18.0M | £3.1M 2022 accounts | £18.0M |
| 169 | Northsix Europe Limited London | £3.1M 2022 accounts | — |
| 170 | Buzz 16 Productions Limited London | £3.1M | — |
| 171 | Open Communication Partners Limited Manchester Turnover £53.9M | £3.0M | £53.9M |
| 172 | Engica Technology Systems International Limited Leeds | £2.8M 2020 accounts | — |
| 173 | Born London Limited London | £2.7M | — |
| 174 | Network N Limited London Turnover £28.0M | £2.6M 2024 accounts | £28.0M |
| 175 | Midland News Association Limited(the) London | £2.6M | — |
| 176 | Housebuilder Media Limited London | £2.6M | — |
| 177 | I-Media Advertising Ltd London | £2.5M 2019 accounts | — |
| 178 | Tuesday's Child Television Limited London | £2.5M 2022 accounts | — |
| 179 | The Media People Limited London | £2.5M 2025 accounts | — |
| 180 | Fluid Branding Limited St. Austell Turnover £27.2M | £2.5M 2023 accounts | £27.2M |
| 181 | Mediafleet Limited Newbury Turnover £12.3M | £2.4M | £12.3M |
| 182 | John Catt Educational Limited London | £2.4M 2021 accounts | — |
| 183 | The Grove Media Limited London Turnover £26.0M | £2.4M 2023 accounts | £26.0M |
| 184 | Cornwall Insight Ltd Norwich Turnover £8.4M | £2.3M 2023 accounts | £8.4M |
| 185 | Compliance Online Limited London Turnover £7.8M | £2.3M 2021 accounts | £7.8M |
| 186 | Titan Publishing Group Limited | £2.3M 2024 accounts | — |
| 187 | MA Group London Limited London Turnover £10.7M | £2.1M | £10.7M |
| 188 | Foundries.Io Limited Cambridge | £2.0M 2019 accounts | — |
| 189 | Strat7 Limited London | £2.0M 2023 accounts | — |
| 190 | Activeviam Ltd London Turnover £22.9M | £1.9M 2024 accounts | £22.9M |
| 191 | One of US Ltd London | £1.9M 2019 accounts | — |
| 192 | October Films Ltd London Turnover £7.1M | £1.9M 2024 accounts | £7.1M |
| 193 | Campfire Group Ltd Salford | £1.8M 2024 accounts | — |
| 194 | Ijs Publishing Group Limited Kingston Upon Thames Turnover £1.8M | £1.7M | £1.8M |
| 195 | Digital Adventures Limited London Turnover £24.8M | £1.7M | £24.8M |
| 196 | Snowman Enterprises Limited London Turnover £795.5k | £1.7M 2024 accounts | £795.5k |
| 197 | Blume Group Ltd Didsbury | £1.7M 2021 accounts | — |
| 198 | Kantar Africa Insight Limited London | £1.7M 2020 accounts | — |
| 199 | Performance54 Limited London | £1.6M | — |
| 200 | Premier Public Relations Ltd London Turnover £28.6M | £1.6M 2023 accounts | £28.6M |
| 201 | Ventura Publishing Limited London Turnover £2.4M | £1.5M 2024 accounts | £2.4M |
| 202 | Metia Group Ltd London | £1.5M | — |
| 203 | Curious Universe UK Limited Bath | £1.4M 2020 accounts | — |
| 204 | Media 10 Limited Loughton Turnover £11.9M | £1.4M | £11.9M |
| 205 | Windfall Films Limited London Turnover £12.4M | £1.4M | £12.4M |
| 206 | Tba Group Limited London | £1.4M 2024 accounts | — |
| 207 | Prestel Publishing Limited London Turnover £2.2M | £1.4M | £2.2M |
| 208 | Tomorrow's Guides Limited Hungerford Turnover £12.5M | £1.3M 2024 accounts | £12.5M |
| 209 | Watershed Technology Ltd London | £1.3M 2025 accounts | — |
| 210 | Video Content Library Limited Belfast Turnover £1.8M | £1.3M 2024 accounts | £1.8M |
| 211 | Ditto Ltd Liverpool Turnover £9.9M | £1.3M | £9.9M |
| 212 | Big Issue Media Limited London Turnover £6.2M | £1.3M 2024 accounts | £6.2M |
| 213 | Newrocket (UK) Limited London Turnover £6.6M | £1.2M 2020 accounts | £6.6M |
| 214 | Lacework Emea Ltd London | £1.2M 2022 accounts | — |
| 215 | Media Agency Group Limited London | £1.2M | — |
| 216 | Sleek Events Ltd. Wimbledon | £1.2M | — |
| 217 | KMC Music Ltd London | £1.1M 2024 accounts | — |
| 218 | Verve Partners Limited London Turnover £9.9M | £1.1M 2023 accounts | £9.9M |
| 219 | Newsco Insider Limited London | £1.1M | — |
| 220 | Everything Branded Usa Ltd Leicester | £1.0M | — |
| 221 | Warner Chappell Music AG Limited London | £1.0M 2023 accounts | — |
| 222 | Union Square Music Limited London Turnover £3.6M | £1.0M | £3.6M |
| 223 | Purespectrum UK Limited London Turnover £16.2M | £1.0M | £16.2M |
| 224 | Bountiful Cow Ltd London | £968.5k 2025 accounts | — |
| 225 | Spendesk Limited London Turnover £14.4M | £926.7k 2023 accounts | £14.4M |
| 226 | House Productions Ltd London | £831.7k 2021 accounts | — |
| 227 | Icelolly Marketing Limited Leeds Turnover £6.5M | £819.1k 2024 accounts | £6.5M |
| 228 | Warp Technologies Limited Brighton Turnover £3.0M | £808.5k | £3.0M |
| 229 | Iese Innovation Ltd Chatham Turnover £2.9M | £806.4k | £2.9M |
| 230 | Boombit Games Ltd London Turnover £34.4M | £781.6k 2024 accounts | £34.4M |
| 231 | Caviar London Limited London Turnover £5.0M | £746.8k | £5.0M |
| 232 | Excellera UK PLC London Turnover £600.3k | £716.2k | £600.3k |
| 233 | Travel Weekly Group Limited London | £634.8k | — |
| 234 | Partnership Media Group Limited Manchester Turnover £10.9M | £619.2k | £10.9M |
| 235 | Doc Society London | £589.7k | — |
| 236 | Brouhaha Entertainment Limited Harrow | £566.6k | — |
| 237 | Education Cubed Ltd Brighton Turnover £19.9M | £554.7k | £19.9M |
| 238 | Unique Digital Marketing Limited London | £542.7k 2024 accounts | — |
| 239 | Advizzo Ltd Manchester | £527.1k 2023 accounts | — |
| 240 | Situation Publishing Holdings Limited London | £517.8k 2023 accounts | — |
| 241 | Rovio UK Limited London Turnover £19.5k | £504.0k 2025 accounts | £19.5k |
| 242 | SRL Marketing Limited Maidenhead | £498.9k | — |
| 243 | Clicksit App Limited Manchester | £490.0k 2021 accounts | — |
| 244 | Well Played Games Limited Leamington Spa | £466.5k 2024 accounts | — |
| 245 | Cogent Elliott Limited Royal Leamington Spa Turnover £4.5M | £435.5k 2023 accounts | £4.5M |
| 246 | Jetbrains UK Limited London Turnover £6.2M | £425.3k | £6.2M |
| 247 | Faber Music Limited London Turnover £3.4M | £423.8k 2023 accounts | £3.4M |
| 248 | Accorder Music Publishing Limited Richmond Turnover £3.1M | £415.2k | £3.1M |
| 249 | The Lift Entertainment Limited London | £401.5k | — |
| 250 | Salspot Limited London Turnover £98.2k | £386.3k 2024 accounts | £98.2k |
| 251 | Studio Lambert Media Ltd London | £360.2k 2020 accounts | — |
| 252 | Paul Rodriguez Music Limited Richmond Turnover £705.8k | £348.0k | £705.8k |
| 253 | Love Song Films Ltd London | £331.7k 2024 accounts | — |
| 254 | Investment in Media Limited Normanton Industrial Estate | £330.2k | — |
| 255 | People's Palace Projects London | £313.3k | — |
| 256 | Coffee and TV Group Limited London | £305.7k 2023 accounts | — |
| 257 | Magnify Content Media Ltd London | £290.7k 2019 accounts | — |
| 258 | Dorling Kindersley Limited London Turnover £115.5M | £290.4k | £115.5M |
| 259 | Packets2disk Ltd London | £290.1k 2024 accounts | — |
| 260 | Snowdog Enterprises Limited London Turnover £189.9k | £277.4k 2024 accounts | £189.9k |
| 261 | Vertala Ltd Fordingbridge | £270.1k | — |
| 262 | Quant Network Ltd London | £251.2k 2021 accounts | — |
| 263 | Highland Castle Productions Limited London | £238.3k | — |
| 264 | LFL Productions Limited London | £218.2k 2024 accounts | — |
| 265 | Doublestruck Limited Manchester | £213.1k 2021 accounts | — |
| 266 | E-Rewards Bidco Limited London Turnover £0 | £183.7k 2021 accounts | £0 |
| 267 | Spinifexit Solutions UK Limited London | £180.1k 2019 accounts | — |
| 268 | Scopely UK Limited Altrincham | £178.7k 2020 accounts | — |
| 269 | Saregama Limited Harrow Turnover £871.7k | £172.0k 2021 accounts | £871.7k |
| 270 | A24 Studios Limited London | £171.1k | — |
| 271 | Peer-Southern Productions Limited Richmond Turnover £342.2k | £151.4k | £342.2k |
| 272 | Happy Computers Limited London | £149.2k | — |
| 273 | Northern Ireland Screen Commission 21 Alfred Street | £145.2k 2020 accounts | — |
| 274 | Not-4-Not Productions Limited London | £117.5k | — |
| 275 | Cde Entertainment Ltd. Reading Turnover £65.5k | £112.2k 2024 accounts | £65.5k |
| 276 | Communication Group Plc(the) London | £111.0k | — |
| 277 | Adelicious Limited London | £106.2k 2024 accounts | — |
| 278 | Eagle Eye Qbbot Limited London | £106.0k 2022 accounts | — |
| 279 | Suite Distribution Limited London | £96.7k 2023 accounts | — |
| 280 | Mercury Film Productions Limited London | £77.0k | — |
| 281 | Redactive Publishing Limited London Turnover £13.5M | £56.8k | £13.5M |
| 282 | Glasgow Media Access Centre Limited Glasgow | £45.0k 2023 accounts | — |
| 283 | Marmalade Pictures Limited London | £36.7k 2024 accounts | — |
| 284 | Donovan (Music) Limited Richmond Turnover £631.8k | £10.0k | £631.8k |
| 285 | Moonage Pictures (Intergalactic) Limited London | £9.1k 2024 accounts | — |
| 286 | UK Netease Interactive Entertainment Limited London | £8.1k 2020 accounts | — |
| 287 | Atp Media Licensing Limited Wimbledon | £7.7k | — |
| 288 | Skydance UK Limited London | £4.9k 2024 accounts | — |
| 289 | The Devil's Hour Limited London Turnover £17.6M | £3.6k 2024 accounts | £17.6M |
| 290 | Haggle Pictures Limited London Turnover £8.5M | £1.8k 2021 accounts | £8.5M |
| 291 | Peermusic Accorder Library Limited Richmond Turnover £99.8k | £1.3k | £99.8k |
| 292 | Dunmo Music Publishing Company Limited Richmond Turnover £16.8k | £149 | £16.8k |
| 293 | Jewel Music Publishing Company Limited London | £100 2024 accounts | — |
| 294 | Mediaforce (Representation) Digital Limited London | £100 | — |
| 295 | Sdta Productions Limited Beaconsfield | £100 | — |
| 296 | TSC Entertainment (Atb) Limited London | £2 2024 accounts | — |
| 297 | Cadence Productions Limited London | £2 2025 accounts | — |
| 298 | Eagle Eye TCND Limited London | £1 2022 accounts | — |
| 299 | Universally Speaking Limited Wyboston | -£48.3k | — |
| 300 | Artificial Intelligence Research Lab Ltd London | -£60.2k | — |