1 J Journee B2C Software; London; three-year growth 10,171% B2C Software; London; three-year growth 10,171% 2 MB Monument Bank Limited FinTech; London; three-year growth 9,518% FinTech; London; three-year growth 9,518% 3 L Lottie B2B or B2B2C Software; London; three-year growth 6,988% B2B or B2B2C Software; London; three-year growth 6,988% 4 P Previsico Environmental Technology; Midlands; three-year growth 3,624% Environmental Technology; Midlands; three-year growth 3,624% 5 CU City Unscripted B2C Software; London; three-year growth 2,955% B2C Software; London; three-year growth 2,955% 6 PC Pathos Communications Limited Marketing, Media, Entertainment, AdTech; London; three-year growth 2,842% Marketing, Media, Entertainment, AdTech; London; three-year growth 2,842% 7 Allica Bank FinTech; London; three-year growth 2,822% FinTech; London; three-year growth 2,822% 8 V ValStream B2B or B2B2C Software; South East; three-year growth 2,805% B2B or B2B2C Software; South East; three-year growth 2,805% 9 L LendingCrowd FinTech; Scotland; three-year growth 2,792% FinTech; Scotland; three-year growth 2,792% 10 S Summize B2B or B2B2C Software; North West; three-year growth 2,678% B2B or B2B2C Software; North West; three-year growth 2,678% 11 SC Scan.com Healthcare and Life Sciences; London; three-year growth 2,622% Healthcare and Life Sciences; London; three-year growth 2,622% 12 EE Evolution Engineers Marketing, Media, Entertainment, AdTech; South East; three-year growth 2,621% Marketing, Media, Entertainment, AdTech; South East; three-year growth 2,621% 13 DN de Novo Solutions B2B or B2B2C Software; South West and Wales; three-year growth 2,284% B2B or B2B2C Software; South West and Wales; three-year growth 2,284% 14 PolyAI B2B or B2B2C Software; London; three-year growth 2,274% B2B or B2B2C Software; London; three-year growth 2,274% 15 X Xapien B2B or B2B2C Software; London; three-year growth 2,107% B2B or B2B2C Software; London; three-year growth 2,107% 16 L Levidian Environmental Technology; Cambridgeshire and East; three-year growth 2,030% Environmental Technology; Cambridgeshire and East; three-year growth 2,030% 17 O OneDome FinTech; London; three-year growth 1,726% FinTech; London; three-year growth 1,726% 18 SF Secret Food Tours B2C Software; London; three-year growth 1,672% B2C Software; London; three-year growth 1,672% 19 Synthesia B2B or B2B2C Software; London; three-year growth 1,654% B2B or B2B2C Software; London; three-year growth 1,654% 20 H HyBird B2B or B2B2C Software; London; three-year growth 1,535% B2B or B2B2C Software; London; three-year growth 1,535% 21 D Dexory B2B or B2B2C Software; London; three-year growth 1,382% B2B or B2B2C Software; London; three-year growth 1,382% 22 F FYLD B2B or B2B2C Software; London; three-year growth 1,326% B2B or B2B2C Software; London; three-year growth 1,326% 23 M Monavate FinTech; Cambridgeshire and East; three-year growth 1,314% FinTech; Cambridgeshire and East; three-year growth 1,314% 24 ET Econic Technologies Environmental Technology; North West; three-year growth 1,308% Environmental Technology; North West; three-year growth 1,308% 25 UT Under The Doormat B2B or B2B2C Software; London; three-year growth 1,297% B2B or B2B2C Software; London; three-year growth 1,297% 26 C Creditspring FinTech; London; three-year growth 1,215% FinTech; London; three-year growth 1,215% 27 C Connectd B2B or B2B2C Software; London; three-year growth 1,200% B2B or B2B2C Software; London; three-year growth 1,200% 28 S SecureFlag B2B or B2B2C Software; London; three-year growth 1,181% B2B or B2B2C Software; London; three-year growth 1,181% 29 O OnHand B2B or B2B2C Software; North East; three-year growth 972% B2B or B2B2C Software; North East; three-year growth 972% 30 RL Risk Ledger B2B or B2B2C Software; London; three-year growth 964% B2B or B2B2C Software; London; three-year growth 964% 31 S Stasher B2C Software; London; three-year growth 962% B2C Software; London; three-year growth 962% 32 CN Clarus Networks Communications; Scotland; three-year growth 941% Communications; Scotland; three-year growth 941% 33 P Penfold FinTech; London; three-year growth 935% FinTech; London; three-year growth 935% 34 Z Zilch FinTech; London; three-year growth 906% FinTech; London; three-year growth 906% 35 L Lovey FinTech; Midlands; three-year growth 876% FinTech; Midlands; three-year growth 876% 36 F Flagstone FinTech; London; three-year growth 845% FinTech; London; three-year growth 845% 37 M Moneybox FinTech; London; three-year growth 844% FinTech; London; three-year growth 844% 38 GH Gen H FinTech; London; three-year growth 837% FinTech; London; three-year growth 837% 39 FG Flow Global FinTech; London; three-year growth 825% FinTech; London; three-year growth 825% 40 ZE Zen Educate B2B or B2B2C Software; London; three-year growth 752% B2B or B2B2C Software; London; three-year growth 752% 41 AM ANNA Money FinTech; South West and Wales; three-year growth 750% FinTech; South West and Wales; three-year growth 750% 42 V Verto FinTech; London; three-year growth 714% FinTech; London; three-year growth 714% 43 V V7 B2B or B2B2C Software; London; three-year growth 674% B2B or B2B2C Software; London; three-year growth 674% 44 OG Obrizum Group Ltd B2B or B2B2C Software; Cambridgeshire and East; three-year growth 662% B2B or B2B2C Software; Cambridgeshire and East; three-year growth 662% 45 Y Yoto B2C Software; London; three-year growth 658% B2C Software; London; three-year growth 658% 46 U Utopi Environmental Technology; Scotland; three-year growth 658% Environmental Technology; Scotland; three-year growth 658% 47 X Xelix B2B or B2B2C Software; London; three-year growth 644% B2B or B2B2C Software; London; three-year growth 644% 48 H Hozah FinTech; London; three-year growth 642% FinTech; London; three-year growth 642% 49 P PhysicsX B2B or B2B2C Software; London; three-year growth 627% B2B or B2B2C Software; London; three-year growth 627% 50 Monzo FinTech; London; three-year growth 622% FinTech; London; three-year growth 622%