| 🥇 | GATTACA PLC | 100Excellent | #2 | ↑ 0.2 | Human Resources |
| 🥈 | CENTRICA LNG UK LIMITED | 100Excellent | #20 | — | — |
| 🥉 | DYNO-ROD LIMITED | 100Excellent | #21 | — | Property |
| #4 | FIL PENSIONS MANAGEMENT | 100Excellent | #45 | — | Financial Services |
| #5 | XEROX FINANCE LIMITED | 100Excellent | #16 | – 0.0 | — |
| #6 | INNOTECH ADVISERS LIMITED | 100Excellent | #58 | – 0.0 | — |
| #7 | REILLY JDM HOLDINGS LIMITED | 100Excellent | #17 | — | — |
| #8 | VOLVO CAR FINANCIAL SERVICES UK LIMITED | 100Excellent | #27 | – 0.0 | Financial Services |
| #9 | FINANCIAL ADMINISTRATION SERVICES LIMITED | 100Excellent | #51 | — | Financial Services |
| #10 | ESSO UK LIMITED | 100Excellent | #22 | – 0.0 | — |
| #11 | INTERBAY ML, LTD | 100Excellent | #28 | – 0.0 | Financial Services |
| #12 | TOYOTA FINANCIAL SERVICES (UK) PLC | 100Excellent | #34 | – 0.0 | Financial Services |
| #13 | SANTANDER CONSUMER (UK) PLC | 100Excellent | #35 | – 0.0 | Financial Services |
| #14 | BANBURY HEATH LIMITED | 100Excellent | #36 | New | Events And Venues |
| #15 | CINCH FLEETCO LIMITED | 100Excellent | #37 | – 0.0 | Travel And Transportation |
| #16 | BRISTOW HELICOPTERS (INTERNATIONAL) LIMITED | 100Excellent | #9 | ↑ 0.6 | Air Travel |
| #17 | CADENCE INNOVA LTD | 100Excellent | #26 | ↑ 0.3 | — |
| #18 | KL VENTURES LIMITED | 100Excellent | #47 | – 0.0 | Events And Venues |
| #19 | BP EXPLORATION (AZERBAIJAN) LIMITED | 100Excellent | #11 | — | Property |
| #20 | ID MEDICAL GROUP LIMITED | 100Excellent | #65 | – 0.0 | Human Resources |
| #21 | DENPLAN LIMITED | 100Excellent | #71 | – 0.0 | Primary Care |
| #22 | HYUNDAI CAPITAL UK LIMITED | 100Excellent | #74 | – 0.0 | Financial Services |
| #23 | SIMPLYHEALTH ACCESS | 100Excellent | #76 | – 0.0 | — |
| #24 | HERTFORD HEATH LIMITED | 100Excellent | #78 | ↑ 0.6 | Events And Venues |
| #25 | PIONEER SHIPPING LIMITED | 100Excellent | #85 | — | Distribution And Delivery |
| #26 | FIL LIFE INSURANCE LIMITED | 100Excellent | #97 | — | Financial Services |
| #27 | BMW FINANCIAL SERVICES (GB) LIMITED | 100Excellent | #101 | — | Financial Services |
| #28 | RIDDINGTONS CIS & PAYROLL SOLUTIONS UK LTD | 100Excellent | #95 | – 0.0 | Financial Services |
| #29 | OPHIR ENERGY LIMITED | 100Excellent | #98 | ↑ 0.2 | Energy |
| #30 | THIRD STATE PIZZA COMPANY LIMITED | 100Excellent | #99 | New | Events And Venues |
| #31 | ONESAVINGS BANK PLC | 99Excellent | #109 | ↑ 1.1 | Financial Services |
| #32 | AVIS FINANCE COMPANY LIMITED | 99Excellent | #135 | ↑ 0.3 | — |
| #33 | FIRST RATE EXCHANGE SERVICES LIMITED | 99Excellent | #147 | ↑ 0.9 | Financial Services |
| #34 | CYGNUS ACADEMIES TRUST | 99Excellent | #152 | New | Education |
| #35 | MHS HOMES LIMITED | 99Excellent | #156 | ↑ 0.1 | — |
| #36 | RIVERSTONE MANAGEMENT LIMITED | 99Excellent | #166 | ↑ 0.3 | Financial Services |
| #37 | CENTRICA LNG COMPANY LIMITED | 99Excellent | #177 | — | — |
| #38 | BAE SYSTEMS SURFACE SHIPS LIMITED | 99Excellent | #178 | ↑ 1.1 | Education |
| #39 | KAZPER RESTAURANTS LIMITED | 99Excellent | #191 | ↑ 1.4 | Lifestyle And Entertainment |
| #40 | CENTRICA ENERGY LIMITED | 99Excellent | #186 | — | — |
| #41 | EXXONMOBIL GAS MARKETING EUROPE LIMITED | 99Excellent | #187 | ↑ 0.6 | Distribution And Delivery |
| #42 | SIMPLYHEALTH PEOPLE LIMITED | 99Excellent | #190 | ↑ 0.1 | Financial Services |
| #43 | BAE SYSTEMS MARINE LIMITED | 98Excellent | #192 | ↑ 0.9 | Waterways Travel |
| #44 | JUNIPER NETWORKS (UK) LIMITED | 98Excellent | #196 | ↑ 0.5 | Software |
| #45 | GFM EDUCATION | 98Excellent | #206 | ↑ 1.3 | Education |
| #46 | TOTALENERGIES GAS & POWER LIMITED | 98Excellent | #208 | ↓ 0.5 | Energy |
| #47 | EXXONMOBIL MARINE LIMITED | 98Excellent | #207 | ↓ 1.2 | Energy |
| #48 | HOLIDAY EXTRAS LIMITED | 98Excellent | #221 | ↑ 0.5 | — |
| #49 | SOUTH EAST SURREY SCHOOLS EDUCATION TRUST | 98Excellent | #223 | ↑ 1.0 | Education |
| #50 | BOURNE EDUCATION TRUST | 98Excellent | #237 | ↑ 0.1 | Education |
| #51 | BOTTOMLINE TECHNOLOGIES LIMITED | 98Excellent | #229 | ↑ 0.7 | Financial Services |
| #52 | LEARNING PARTNERS ACADEMY TRUST | 98Excellent | #248 | ↑ 0.5 | Care Services |
| #53 | THESIS UNIT TRUST MANAGEMENT LIMITED | 98Excellent | #255 | ↓ 1.3 | Financial Services |
| #54 | F.M. INSURANCE COMPANY LIMITED | 98Excellent | #257 | ↓ 0.2 | Financial Services |
| #55 | RIVERMEAD INCLUSIVE TRUST | 98Excellent | #263 | New | Education |
| #56 | CA AUTO FINANCE UK LTD | 98Excellent | #272 | ↓ 0.6 | Financial Services |
| #57 | GLF SCHOOLS | 98Excellent | #276 | ↑ 23.4 | Care Services |
| #58 | AIR BP LIMITED | 98Excellent | #275 | — | — |
| #59 | CARE UNBOUND LIMITED | 98Excellent | #295 | ↓ 0.1 | Care Services |
| #60 | BOURNE ALLIANCE MULTI ACADEMY TRUST | 98Excellent | #292 | New | Education |
| #61 | KEYSTONE DEVELOPMENTS (LG) LIMITED | 97Excellent | #315 | ↑ 0.1 | — |
| #62 | TESCO UNDERWRITING LIMITED | 97Excellent | #307 | ↑ 4.5 | Financial Services |
| #63 | CINCH CARS LIMITED | 97Excellent | #309 | ↑ 1.6 | Commerce Models |
| #64 | SIEMENS FINANCIAL SERVICES LIMITED | 97Excellent | #327 | ↓ 0.1 | — |
| #65 | CROSS LONDON TRAINS LIMITED | 97Excellent | #339 | ↓ 0.5 | — |
| #66 | AUDLEY TRAVEL GROUP LIMITED | 97Excellent | #360 | ↓ 0.6 | Travel And Transportation |
| #67 | HONDA R & D EUROPE (U.K.) LIMITED | 97Excellent | #351 | ↑ 3.1 | — |
| #68 | RIDGEWAY EDUCATION TRUST | 97Excellent | #353 | ↓ 0.2 | Education |
| #69 | VOLVO CAR UK LIMITED | 97Excellent | #370 | ↑ 7.5 | Travel And Transportation |
| #70 | AUTOMOBILE ASSOCIATION DEVELOPMENTS LIMITED | 97Excellent | #383 | ↓ 0.4 | Road Travel |
| #71 | EPA TRUST | 97Excellent | #389 | ↓ 1.6 | Education |
| #72 | SK HYNIX UK LIMITED | 97Excellent | #390 | ↑ 1.4 | — |
| #73 | ESSO EXPLORATION AND PRODUCTION UK LIMITED | 97Excellent | #392 | ↓ 1.5 | Energy |
| #74 | MONEYBARN NO.1 LIMITED | 97Excellent | #393 | — | Financial Services |
| #75 | RSA ACCIDENT REPAIRS LIMITED | 97Excellent | #397 | — | Road Travel |
| #76 | MICHAEL PAGE INTERNATIONAL RECRUITMENT LIMITED | 96Excellent | #411 | ↓ 0.8 | Human Resources |
| #77 | PHYLLIS TUCKWELL MEMORIAL HOSPICE LIMITED | 96Excellent | #415 | ↑ 0.5 | Healthcare And Wellbeing |
| #78 | P A CROCKER LIMITED | 96Excellent | #418 | ↑ 0.6 | Events And Venues |
| #79 | THE AGRICULTURAL MORTGAGE CORPORATION PLC | 96Excellent | #426 | ↓ 0.9 | Agriculture |
| #80 | FIL INVESTMENTS INTERNATIONAL | 96Excellent | #431 | — | — |
| #81 | MAZDA MOTORS UK LIMITED | 96Excellent | #454 | ↓ 0.1 | — |
| #82 | RENESAS ELECTRONICS OPERATIONS SERVICES LIMITED | 96Excellent | #443 | ↑ 16.0 | Hardware |
| #83 | INEOS ENERGY TRADING LIMITED | 96Excellent | #460 | ↑ 0.5 | Energy |
| #84 | BRITISH GAS TRADING LIMITED | 96Excellent | #484 | — | Energy |
| #85 | ANDUFF CAR WASH LIMITED | 96Excellent | #487 | ↑ 0.9 | Road Travel |
| #86 | BCA OUTSOURCE SOLUTIONS LIMITED | 95Excellent | #493 | ↓ 0.2 | Human Resources |
| #87 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS MUNITIONS LIMITED | 95Excellent | #496 | ↑ 0.6 | — |
| #88 | WE BUY ANY CAR LIMITED | 95Excellent | #499 | ↓ 0.1 | Lifestyle And Entertainment |
| #89 | INTERSURGICAL LIMITED | 95Excellent | #510 | — | Life Sciences And Medical Technology |
| #90 | UNUM EUROPEAN HOLDING COMPANY LIMITED | 95Excellent | #513 | ↑ 0.1 | — |
| #91 | COMMVAULT SYSTEMS LIMITED | 95Excellent | #532 | ↓ 0.5 | Information Technology |
| #92 | THE CHURCH OF JESUS CHRIST OF LATTER-DAY SAINTS (GREAT BRITAIN) | 95Excellent | #539 | ↑ 3.6 | — |
| #93 | EPSOM COLLEGE | 95Excellent | #538 | ↑ 7.1 | Education |
| #94 | SIEMENS INDUSTRY SOFTWARE LIMITED | 95Excellent | #559 | ↑ 0.3 | Hardware |
| #95 | BRITISH CAR AUCTIONS LIMITED | 95Excellent | #562 | ↑ 1.1 | Commerce Models |
| #96 | AIRBUS HELICOPTERS UK LIMITED | 95Excellent | #568 | ↑ 30.7 | Air Travel |
| #97 | XERO (UK) LIMITED | 95Excellent | #573 | ↓ 0.8 | Software |
| #98 | LLOYDS BANK COMMERCIAL FINANCE LIMITED | 94Excellent | #579 | ↓ 0.4 | Financial Services |
| #99 | HASTINGS INSURANCE SERVICES LIMITED | 94Excellent | #584 | ↑ 11.5 | Financial Services |
| #100 | CAPGEMINI UK PLC | 94Excellent | #597 | ↓ 2.2 | Information Technology |
