| 🥇 | PARTNERSHIP LIFE ASSURANCE COMPANY LIMITED | 100Excellent | #14 | New | Financial Services |
| 🥈 | GE HEALTHCARE UK LIMITED | 100Excellent | #17 | ↑ 73.2 | — |
| 🥉 | PREMIER FUND MANAGERS LIMITED | 100Excellent | #23 | New | Financial Services |
| #4 | SANTANDER CONSUMER (UK) PLC | 100Excellent | #10 | – 0.0 | Financial Services |
| #5 | HYUNDAI CAPITAL UK LIMITED | 100Excellent | #11 | ↑ 0.3 | Financial Services |
| #6 | INTERBAY ML, LTD | 100Excellent | #16 | – 0.0 | Financial Services |
| #7 | WEBER SHANDWICK INTERNATIONAL LTD | 100Excellent | #3 | ↑ 13.2 | — |
| #8 | SPRINGPOINT UK LIMITED | 100Excellent | #11 | ↑ 1.2 | — |
| #9 | VIRGO HEALTH PR LIMITED | 100Excellent | #13 | – 0.0 | Professional Services |
| #10 | DYNO-ROD LIMITED | 100Excellent | #29 | – 0.0 | Property |
| #11 | CENTRICA LNG UK LIMITED | 100Excellent | #30 | – 0.0 | — |
| #12 | TOYOTA FINANCIAL SERVICES (UK) PLC | 100Excellent | #42 | ↑ 0.2 | Financial Services |
| #13 | CINCH FLEETCO LIMITED | 100Excellent | #55 | New | Travel And Transportation |
| #14 | CASTROL LIMITED | 100Excellent | #56 | – 0.0 | — |
| #15 | INNOTECH ADVISERS LIMITED | 100Excellent | #61 | – 0.0 | — |
| #16 | XEROX FINANCE LIMITED | 100Excellent | #38 | – 0.0 | — |
| #17 | BP EXPLORATION (AZERBAIJAN) LIMITED | 100Excellent | #59 | ↑ 9.4 | Property |
| #18 | ID MEDICAL GROUP LIMITED | 100Excellent | #46 | – 0.0 | Professional Services |
| #19 | ELWA LIMITED | 100Excellent | #71 | ↑ 1.0 | — |
| #20 | CADENCE INNOVA LTD | 100Excellent | #75 | ↓ 0.3 | — |
| #21 | HERTFORD HEATH LIMITED | 100Excellent | #77 | New | Lifestyle And Entertainment |
| #22 | BMW FINANCIAL SERVICES (GB) LIMITED | 99Excellent | #97 | New | Financial Services |
| #23 | AVIS FINANCE COMPANY LIMITED | 99Excellent | #105 | ↑ 17.8 | — |
| #24 | F.M. INSURANCE COMPANY LIMITED | 99Excellent | #111 | ↑ 1.3 | Financial Services |
| #25 | HURRICANE ENERGY PLC | 99Excellent | #117 | New | Property |
| #26 | SABRE INSURANCE COMPANY LIMITED | 99Excellent | #133 | New | Financial Services |
| #27 | SMARTESTENERGY BUSINESS LIMITED | 99Excellent | #138 | – 0.0 | — |
| #28 | EPA TRUST | 99Excellent | #157 | ↑ 0.3 | — |
| #29 | RIVERSTONE MANAGEMENT LIMITED | 99Excellent | #159 | ↑ 2.9 | Professional Services |
| #30 | CENTRICA ENERGY LIMITED | 98Excellent | #169 | ↓ 0.2 | — |
| #31 | ALLEGIS GROUP LIMITED | 98Excellent | #173 | ↑ 0.4 | Professional Services |
| #32 | CENTRICA LNG COMPANY LIMITED | 98Excellent | #168 | ↓ 1.4 | — |
| #33 | CA AUTO FINANCE UK LTD | 98Excellent | #193 | New | Financial Services |
| #34 | AUTOMOBILE ASSOCIATION DEVELOPMENTS LIMITED | 98Excellent | #194 | ↑ 0.6 | Financial Services |
| #35 | AA LIMITED | 98Excellent | #196 | ↑ 1.5 | Financial Services |
| #36 | BIDCONNECTER LIMITED | 98Excellent | #212 | New | Property |
| #37 | HALSION HOLDINGS LIMITED | 98Excellent | #212 | – 0.0 | Property |
| #38 | EXXONMOBIL GAS MARKETING EUROPE LIMITED | 98Excellent | #224 | ↓ 0.7 | Property |
| #39 | BCA FLEET SOLUTIONS LIMITED | 98Excellent | #230 | ↑ 27.5 | — |
| #40 | ESSO EXPLORATION AND PRODUCTION UK LIMITED | 98Excellent | #235 | ↑ 0.2 | Property |
| #41 | FIRST RATE EXCHANGE SERVICES LIMITED | 98Excellent | #239 | ↑ 1.9 | — |
| #42 | BOURNE EDUCATION TRUST | 98Excellent | #242 | ↓ 0.2 | Education |
| #43 | A-PLAN HOLDINGS | 98Excellent | #249 | ↓ 0.5 | Financial Services |
| #44 | BAE SYSTEMS MARINE LIMITED | 98Excellent | #251 | ↑ 3.1 | Travel And Transportation |
| #45 | AUDLEY TRAVEL GROUP LIMITED | 98Excellent | #252 | ↑ 3.4 | Travel And Transportation |
| #46 | GUIDE DOGS FOR THE BLIND ASSOCIATION(THE) | 97Excellent | #263 | ↑ 1.9 | — |
| #47 | ARQIVA SMART METERING LIMITED | 97Excellent | #274 | New | — |
| #48 | GATTACA PLC | 97Excellent | #287 | ↓ 0.8 | — |
| #49 | FIL LIFE INSURANCE LIMITED | 97Excellent | #292 | ↑ 12.6 | Financial Services |
| #50 | OPHIR ENERGY LIMITED | 97Excellent | #293 | ↑ 0.5 | Property |
| #51 | KENTUCKY FRIED CHICKEN (GREAT BRITAIN) LIMITED | 97Excellent | #297 | ↑ 2.1 | Lifestyle And Entertainment |
| #52 | JUNIPER NETWORKS (UK) LIMITED | 97Excellent | #306 | ↑ 0.3 | — |
| #53 | MICHAEL PAGE INTERNATIONAL RECRUITMENT LIMITED | 97Excellent | #322 | ↓ 2.0 | Professional Services |
| #54 | THE AGRICULTURAL MORTGAGE CORPORATION PLC | 97Excellent | #324 | ↑ 1.7 | Financial Services |
| #55 | PHYLLIS TUCKWELL MEMORIAL HOSPICE LIMITED | 97Excellent | #330 | – 0.0 | Healthcare And Wellbeing |
| #56 | MHS HOMES LIMITED | 97Excellent | #326 | ↑ 0.1 | — |
| #57 | XERO (UK) LIMITED | 97Excellent | #333 | ↓ 1.0 | Financial Services |
| #58 | GUILDFORD EDUCATION PARTNERSHIP | 97Excellent | #339 | ↑ 1.3 | Education |
| #59 | BOTTOMLINE TECHNOLOGIES LIMITED | 97Excellent | #344 | New | Financial Services |
| #60 | UNUM EUROPEAN HOLDING COMPANY LIMITED | 97Excellent | #346 | ↑ 1.3 | — |
| #61 | LIVERPOOL VICTORIA INSURANCE COMPANY LIMITED | 96Excellent | #355 | ↓ 3.6 | Financial Services |
| #62 | HIGHWAY INSURANCE COMPANY LIMITED | 96Excellent | #354 | ↓ 3.6 | Financial Services |
| #63 | COMMVAULT SYSTEMS LIMITED | 96Excellent | #356 | ↑ 1.9 | Software |
| #64 | BREVAN HOWARD ASSET MANAGEMENT LLP | 96Excellent | #360 | ↑ 0.2 | — |
| #65 | LIQUID FRIDAY LIMITED | 96Excellent | #370 | ↑ 3.0 | — |
| #66 | INEOS ENERGY TRADING LIMITED | 96Excellent | #374 | ↓ 0.7 | — |
| #67 | SOUTH EAST SURREY SCHOOLS EDUCATION TRUST | 96Excellent | #383 | ↑ 3.5 | Education |
| #68 | PRAX PETROLEUM LIMITED | 96Excellent | #393 | ↓ 1.9 | Property |
| #69 | SK HYNIX UK LIMITED | 96Excellent | #411 | ↓ 1.6 | — |
| #70 | LEARNING PARTNERS ACADEMY TRUST | 96Excellent | #415 | ↑ 1.0 | Education |
| #71 | HOLIDAY EXTRAS LIMITED | 96Excellent | #420 | ↓ 1.8 | — |
| #72 | RMET | 96Excellent | #442 | ↓ 0.3 | Education |
| #73 | TESCO UNDERWRITING LIMITED | 96Excellent | #433 | ↓ 1.9 | Financial Services |
| #74 | PEAC BUSINESS FINANCE LIMITED | 96Excellent | #442 | ↓ 4.5 | Financial Services |
| #75 | WORLD OF BOOKS LIMITED | 95Excellent | #458 | ↑ 3.6 | — |
| #76 | VIRGIN MEDIA WHOLESALE LIMITED | 95Excellent | #450 | New | — |
| #77 | BAE SYSTEMS SURFACE SHIPS LIMITED | 95Excellent | #460 | ↑ 9.2 | Education |
| #78 | MAZDA MOTORS UK LIMITED | 95Excellent | #462 | New | — |
| #79 | UNUM LIMITED | 95Excellent | #476 | ↓ 0.5 | Financial Services |
| #80 | ONESAVINGS BANK PLC | 95Excellent | #475 | – 0.0 | Financial Services |
| #81 | BP OIL UK LIMITED | 95Excellent | #479 | ↓ 1.4 | Property |
| #82 | BP GAS MARKETING LIMITED | 95Excellent | #480 | ↑ 0.9 | Property |
| #83 | FIREBOLT RB HOLDINGS LIMITED | 95Excellent | #486 | ↓ 0.6 | — |
| #84 | BMW (UK) LIMITED | 95Excellent | #485 | New | Travel And Transportation |
| #85 | THAME PARTNERSHIP ACADEMY TRUST | 95Excellent | #487 | ↓ 0.9 | — |
| #86 | EQUINITI LIMITED | 95Excellent | #495 | ↑ 1.8 | Financial Services |
| #87 | CINCH CARS LIMITED | 95Excellent | #496 | New | Financial Services |
| #88 | MARTIN-BAKER AIRCRAFT COMPANY LIMITED | 95Excellent | #498 | ↑ 1.2 | Travel And Transportation |
| #89 | WORLD OF BOOKS GROUP LTD | 95Excellent | #502 | ↑ 2.3 | — |
| #90 | VITERRA UK LTD. | 95Excellent | #512 | ↓ 0.3 | — |
| #91 | DAVIDSON KEMPNER EUROPEAN PARTNERS, LLP | 95Excellent | #518 | New | — |
| #92 | SMSCMC (UK) LIMITED | 95Excellent | #520 | New | — |
| #93 | INTERSURGICAL LIMITED | 95Excellent | #525 | ↓ 0.2 | Life Sciences And Medical Technology |
| #94 | SIEMENS FINANCIAL SERVICES LIMITED | 95Excellent | #531 | ↑ 2.6 | — |
| #95 | EQUINITI SERVICES LIMITED | 94Excellent | #550 | ↑ 20.4 | — |
| #96 | K F C ADVERTISING LIMITED | 94Excellent | #553 | ↑ 4.9 | — |
| #97 | BARFOOTS OF BOTLEY LIMITED | 94Excellent | #560 | ↑ 0.5 | Environment |
| #98 | ALDERMORE BANK PLC | 94Excellent | #578 | ↑ 4.3 | Financial Services |
| #99 | ICON CLINICAL RESEARCH (U.K.) LIMITED | 94Excellent | #591 | ↑ 0.8 | — |
| #100 | HARVEST ENERGY LIMITED | 94Excellent | #602 | ↓ 2.0 | Property |
