| Chiffre d'affaires | £4 960 421 | £6 575 099 | £8 201 946 | £11 348 556 | £11 859 255 | £13 949 578 | — | — | — |
| Bénéfice / (perte) | £-501 290 | £-9 838 | £28 289 | £478 600 | £1 456 | £193 | £1 683 | £4 088 | £1 932 |
| Marge brute | £1 625 908 | £2 889 821 | £5 122 154 | £7 597 108 | £7 934 217 | £9 937 492 | — | — | — |
| Bénéfice d'exploitation | £-1 001 165 | £412 941 | £2 464 210 | £4 519 364 | £4 836 526 | £6 600 796 | — | — | — |
| Autres revenus | £257 730 | £283 503 | £284 000 | £0 | £8 109 | £168 | £8 409 | £176 247 | £200 134 |
| Total des actifs | — | £770 | £3 117 980 | £6 639 125 | £2 194 161 | £4 505 358 | £11 479 015 | £6 953 139 | £770 |
| Net Assets Liabilities | — | £277 540 | £692 800 | £3 117 980 | £6 639 125 | £2 194 161 | £4 505 358 | £11 479 015 | £6 953 139 |
| Equity | — | £770 | £3 117 980 | £6 639 125 | £2 194 161 | £4 505 358 | £11 479 015 | £6 953 139 | £770 |
| Share Capital | — | — | — | — | — | — | — | — | £770 |
| Current Assets | — | £3 635 238 | £4 567 019 | £6 495 349 | £9 769 300 | £4 608 811 | £7 822 911 | £17 372 818 | £11 233 288 |
| Net Current Assets Liabilities | — | £-493 788 | £-66 415 | £1 731 603 | £4 688 961 | £-755 929 | £1 065 358 | £7 458 717 | £-1 045 226 |
| Total Assets Less Current Liabilities | — | £-170 474 | £234 948 | £2 688 417 | £6 688 162 | £2 272 558 | £4 574 591 | £11 569 329 | £7 052 205 |
| Cash Bank On Hand | — | £951 393 | £1 629 325 | £2 556 596 | £3 689 896 | £662 960 | £881 968 | £10 555 736 | £7 466 578 |
| Debtors | — | £2 683 845 | £2 937 694 | £3 938 753 | £6 079 404 | £3 945 851 | £6 940 943 | £6 817 082 | £3 766 710 |
| Other Debtors | — | — | — | — | — | — | £0 | £92 211 | £2 715 |
| Creditors | — | £4 129 026 | £4 633 434 | £4 763 746 | £5 080 339 | £5 364 740 | £6 757 553 | £9 914 101 | £12 278 514 |
| Trade Creditors Trade Payables | — | £100 240 | £96 674 | £334 439 | £669 356 | £476 759 | £419 764 | £593 182 | £654 257 |
| Amounts Owed To Group Undertakings | — | £1 140 077 | £1 027 699 | — | — | — | £0 | £1 806 571 | £3 481 772 |
| Investments Fixed Assets | — | £76 423 | £76 423 | £76 423 | £65 423 | £65 423 | £65 423 | £65 423 | £3 543 658 |
| Number Shares Issued Fully Paid | — | 770 | — | — | — | — | — | — | 770 |
| Par Value Share | — | £1 | — | — | — | — | — | — | £1 |
| Average Number Employees During Period | 77 | 81 | 88 | 97 | 101 | 93 | 102 | £1 | £1 |
| Frais administratifs | £2 884 803 | £2 760 383 | £2 941 944 | £3 740 937 | £4 459 628 | £4 979 600 | £6 317 849 | £7 026 526 | £7 127 054 |
| Accrued Liabilities Deferred Income | — | £2 602 754 | £3 214 858 | £4 122 507 | £4 172 070 | £4 174 963 | £457 030 | £288 837 | £409 277 |
| Accumulated Amortisation Impairment Intangible Assets | — | £1 887 992 | £158 838 | £520 049 | £1 168 421 | £2 122 084 | £3 479 023 | £5 108 388 | £3 880 876 |
| Accumulated Depreciation Impairment Property Plant Equipment | — | £487 829 | £580 739 | £298 320 | £269 732 | £345 014 | £457 642 | £523 385 | £574 999 |
| Additions Other Than Through Business Combinations Intangible Assets | — | — | £794 189 | £1 011 862 | £1 435 809 | £1 525 195 | £2 017 641 | £2 156 302 | £2 936 768 |
| Additions Other Than Through Business Combinations Property Plant Equipment | — | £76 748 | £113 010 | £577 927 | £404 673 | £62 019 | £85 609 | £158 949 | £100 237 |
| Amortisation Expense Intangible Assets | £280 660 | — | £158 838 | £361 211 | £648 372 | £953 663 | — | — | — |
| Amortisation Impairment Expense Intangible Assets | — | — | £158 838 | £361 211 | £648 372 | — | — | — | — |
| Amounts Owed By Group Undertakings | — | — | £1 154 129 | £1 408 392 | £3 446 664 | £1 316 509 | £3 740 051 | £3 037 623 | £484 468 |
| Audit Fees Expenses | — | — | £8 000 | £10 000 | £14 100 | £13 000 | £13 000 | £17 800 | £22 383 |
| Cash Cash Equivalents Cash Flow Value | — | — | — | £2 556 596 | £3 689 896 | — | — | — | — |
| Cash Flows Used In Acquiring Or Obtaining Control Subsidiaries Or Other Businesses Classified As Investing Activities | £-65 423 | — | — | — | — | — | — | — | — |
| Corporation Tax Payable | — | — | — | — | £0 | £256 630 | £794 134 | £489 114 | £914 690 |
| Cost Sales | £3 334 513 | £3 685 278 | £3 079 792 | £3 751 448 | £3 925 038 | £4 012 086 | £5 122 113 | £7 382 956 | — |
| Current Tax For Period | — | — | — | — | £0 | £256 630 | £794 134 | £878 136 | £1 343 712 |
| Deferred Income | — | — | — | — | — | — | £4 731 655 | £6 469 456 | £6 562 399 |
| Deferred Tax Expense Credit From Unrecognised Timing Difference From Prior Period | — | £-126 131 | £-122 824 | £-13 417 | £13 428 | £0 | — | — | — |
| Deferred Tax Expense Credit Relating To Changes In Tax Rates Or Laws | — | — | — | — | — | £0 | £21 863 | £0 | — |
| Deferred Tax Expense Credit Relating To Origination Reversal Timing Differences | £-501 290 | £-9 838 | £28 289 | £478 600 | £29 360 | £-9 164 | £-782 | £8 752 | £-10 552 |
| Depreciation Expense Property Plant Equipment | — | £98 699 | £92 910 | £81 925 | £142 325 | £141 226 | — | — | — |
| Depreciation Impairment Expense Property Plant Equipment | — | — | £92 910 | £81 925 | £142 325 | — | — | — | — |
| Dividends Paid | — | £300 000 | — | £500 000 | £9 000 000 | £3 500 000 | £3 500 000 | £12 000 000 | £3 000 000 |
| Dividends Paid Classified As Financing Activities | £-300 000 | — | — | £-500 000 | £-9 000 000 | — | — | — | — |
| Dividends Paid On Shares Final | — | — | — | £500 000 | £9 000 000 | £3 500 000 | £0 | £12 000 000 | £3 000 000 |
| Fixed Assets | — | £323 314 | £301 363 | £956 814 | £1 999 201 | £3 028 487 | £3 509 233 | £4 110 612 | £8 097 431 |
| Further Item Interest Expense Component Total Interest Expense | — | — | — | — | £0 | £3 609 | — | — | £0 |
| Further Item Tax Increase Decrease Component Adjusting Items | — | £56 132 | £-2 011 | £-2 011 | £68 630 | £0 | £-2 172 | £-4 880 | £-624 |
| Future Minimum Lease Payments Under Non-cancellable Operating Leases | — | — | — | £173 385 | £1 712 193 | £1 532 912 | £1 301 472 | £1 072 537 | £1 910 265 |
| Gain Loss Due To Foreign Exchange Differences Recognised In Profit Or Loss | £127 380 | £-9 759 | £-15 822 | £21 411 | £154 175 | £-67 417 | £35 496 | £-30 091 | £-64 082 |
| Gain Loss On Disposals Other Non-current Assets | — | — | — | £-11 000 | £0 | — | — | — | — |
| Gain Loss On Disposals Property Plant Equipment | — | — | — | £-93 266 | £-20 499 | £-11 579 | — | — | — |
| Government Grant Income | — | — | — | £0 | £114 402 | £0 | — | — | — |
| Gross Profit Loss | £1 625 908 | £2 889 821 | £5 122 154 | £7 597 108 | £7 934 217 | £9 937 492 | — | — | — |
| Impairment Loss Reversal On Investments | — | — | — | £11 000 | £0 | — | — | — | — |
| Increase Decrease In Cash Cash Equivalents Before Foreign Exchange Differences Changes In Consolidation | — | — | £-927 271 | £-1 133 300 | — | — | — | — | — |
| Increase Decrease In Current Tax From Adjustment For Prior Periods | £3 649 | — | — | — | — | — | — | £0 | £-38 650 |
| Increase From Amortisation Charge For Year Intangible Assets | — | — | £158 838 | £361 211 | £648 372 | £953 663 | £1 356 939 | £1 629 365 | £2 014 343 |
| Increase From Depreciation Charge For Year Property Plant Equipment | — | £98 699 | £92 910 | £81 925 | £142 325 | £141 226 | £141 382 | £163 723 | £169 760 |
| Intangible Assets | — | — | £635 351 | £635 351 | £1 286 002 | £2 073 439 | £2 644 971 | £3 305 673 | £3 832 610 |
| Intangible Assets Gross Cost | — | £1 887 992 | £794 189 | £1 806 051 | £3 241 860 | £4 767 055 | £6 784 696 | £8 940 998 | £8 635 911 |
| Interest Expense On Bank Overdrafts Bank Loans Similar Borrowings | £12 681 | £7 519 | £10 741 | £8 619 | £0 | — | — | — | — |
| Interest Income On Bank Deposits | — | — | — | £0 | £8 109 | £168 | £8 409 | £176 247 | £200 134 |
| Interest Income On Financial Assets That Are Not Fair Value Through Profit Or Loss | — | — | — | £0 | £8 109 | £168 | £8 409 | £176 247 | £200 134 |
| Interest Paid To Group Undertakings | — | — | — | — | £0 | £4 797 | £36 914 | £93 274 | £116 493 |
| Interest Payable Similar Charges Finance Costs | £12 681 | £7 519 | £10 741 | £8 619 | £3 609 | £4 797 | £36 914 | £93 274 | £152 533 |
| Interest Received Classified As Investing Activities | — | — | — | £0 | £-8 109 | — | — | — | — |
| Investments In Subsidiaries | — | — | — | £76 423 | £65 423 | £65 423 | £65 423 | £65 423 | £3 543 658 |
| Net Cash Flows From Used In Financing Activities | — | — | — | £500 000 | — | — | — | — | — |
| Net Cash Flows From Used In Investing Activities | — | — | £907 199 | £1 589 789 | — | — | — | — | — |
| Net Cash Flows From Used In Operating Activities | — | — | £-1 834 470 | £-3 223 089 | £-7 805 437 | — | — | — | — |
| Net Cash Generated From Operations | — | £-762 199 | £-1 845 211 | £-3 231 708 | £-7 809 046 | — | — | — | — |
| Net Finance Income Costs | — | — | — | £0 | £8 109 | — | — | — | — |
| Net Interest Paid Received Classified As Operating Activities | £-12 681 | £-7 519 | £-10 741 | £-8 619 | £-3 609 | — | — | — | — |
| Operating Profit Loss | £-1 001 165 | £412 941 | £2 464 210 | £4 519 364 | £4 836 526 | £6 600 796 | — | — | — |
| Other Disposals Decrease In Amortisation Impairment Intangible Assets | — | — | £1 887 992 | — | — | — | — | — | £3 241 855 |
| Other Disposals Decrease In Depreciation Impairment Property Plant Equipment | — | — | — | £364 344 | £170 913 | £65 944 | £28 754 | £97 980 | £118 146 |
| Other Disposals Intangible Assets | — | — | £1 887 992 | — | — | — | — | — | £3 241 855 |
| Other Disposals Property Plant Equipment | — | — | — | £457 610 | £191 412 | £77 523 | £32 304 | £111 559 | £143 322 |
| Other Interest Receivable Similar Income Finance Income | — | — | — | £0 | £8 109 | £168 | £8 409 | £176 247 | £200 134 |
| Other Operating Income Format1 | £257 730 | £283 503 | £284 000 | £663 193 | £1 361 937 | £1 642 904 | £1 837 880 | £3 673 618 | £3 659 095 |
| Other Taxation Social Security Payable | — | £285 955 | £294 203 | £306 800 | £238 913 | £456 388 | £354 970 | £266 941 | £256 119 |
| Percentage Class Share Held In Subsidiary | — | £1 | £1 | £1 | £1 | £1 | — | £1 | £1 |
| Prepayments Accrued Income | — | £160 972 | £362 199 | £526 374 | £750 748 | £773 393 | £812 788 | £906 804 | £1 129 867 |
| Profit Loss On Ordinary Activities Before Tax | £-1 013 846 | £405 422 | £2 453 469 | £4 499 745 | £4 841 026 | £6 596 167 | £7 872 874 | £8 826 588 | £12 730 422 |
| Property Plant Equipment | — | £246 891 | £224 940 | £245 040 | £647 776 | £889 625 | £798 839 | £739 516 | £721 163 |
| Property Plant Equipment Gross Cost | — | £712 769 | £825 779 | £946 096 | £1 159 357 | £1 143 853 | £1 197 158 | £1 244 548 | £1 201 463 |
| Provisions For Liabilities Balance Sheet Subtotal | — | £-448 014 | £-457 852 | £-429 563 | — | — | — | — | — |
| Purchase Intangible Assets | — | — | £-794 189 | £-1 011 862 | £-1 435 809 | — | — | — | — |
| Purchase Property Plant Equipment | £-103 145 | £-76 748 | £-113 010 | £-577 927 | £-404 673 | — | — | — | — |
| Social Security Costs | £341 638 | £358 091 | £410 793 | £474 858 | £428 912 | £434 683 | — | — | — |
| Staff Costs Employee Benefits Expense | £4 007 822 | £4 156 797 | £4 072 200 | £4 060 347 | £4 187 388 | £4 346 419 | £5 380 037 | £7 077 864 | £7 966 195 |
| Taxation Including Deferred Taxation Balance Sheet Subtotal | — | — | — | — | £49 037 | £78 397 | £69 233 | £90 314 | £99 066 |
| Tax Expense Credit Applicable Tax Rate | — | — | — | £466 159 | £854 952 | £919 795 | £1 253 272 | £1 495 846 | £2 076 013 |
| Tax Increase Decrease Arising From Group Relief Tax Reconciliation | — | — | — | £0 | £-152 454 | £0 | £0 | £-122 004 | £-299 111 |
| Tax Increase Decrease From Effect Adjustment In Research Development Tax Credit | — | — | £-347 061 | £-442 184 | £-627 447 | £-656 065 | £-881 709 | £-999 110 | £-1 449 648 |
| Tax Increase Decrease From Effect Different Tax Rates On Some Earnings | — | — | — | — | — | £0 | £21 675 | £0 | — |
| Tax Increase Decrease From Effect Different U K Tax Rates On Some Earnings | — | £29 132 | — | — | — | — | — | — | — |
| Tax Increase Decrease From Effect Expenses Not Deductible In Determining Taxable Profit Or Loss | £8 822 | £10 131 | £289 | £7 069 | £1 456 | £193 | £1 683 | £4 088 | £1 932 |
| Tax Increase Decrease From Effect Unrelieved Tax Losses Carried Forward | £-367 124 | — | — | — | — | — | — | — | — |
| Tax Tax Credit On Profit Or Loss On Ordinary Activities | £-501 290 | £-9 838 | £28 289 | £478 600 | £285 990 | £784 970 | £899 217 | £1 352 464 | £1 912 274 |
| Total Current Tax Expense Credit | — | — | — | — | — | — | — | £1 343 712 | £1 922 826 |
| Total Deferred Tax Expense Credit | — | — | — | — | — | £-9 164 | £21 081 | £8 752 | — |
| Total Operating Lease Payments | £121 564 | £109 969 | £119 219 | £126 211 | £357 327 | £331 571 | — | — | — |
| Trade Debtors Trade Receivables | — | £1 325 560 | £1 421 366 | £2 003 987 | £1 881 992 | £1 855 949 | £2 388 104 | £2 780 444 | £2 149 660 |
| Turnover Revenue | £4 960 421 | £6 575 099 | £8 201 946 | £11 348 556 | £11 859 255 | £13 949 578 | — | — | — |
| Wages Salaries | £3 666 184 | £3 798 706 | £3 661 407 | £3 585 489 | £3 758 476 | £3 911 736 | £4 877 758 | £6 385 652 | £7 015 359 |
