| 🥇 | PRINCIPAL FINANCIAL SERVICES V (UK) LTD | 100Excellent | #14 | – 0.0 | Financial Services |
| 🥈 | OUTDOOR MEDIACOM LIMITED | 100Excellent | #9 | ↑ 96.3 | Marketing And Sales |
| 🥉 | CWBC PROPERTIES (BP1) LIMITED | 100Excellent | #13 | ↑ 43.0 | Property |
| #4 | WITHERS PROFESSIONAL SERVICES LIMITED | 100Excellent | #16 | ↑ 2.4 | — |
| #5 | PFPL PROJECTS SURREY HEATH LTD | 100Excellent | #33 | ↑ 41.7 | Sports |
| #6 | SH EURO FINANCE PLC | 100Excellent | #2 | New | — |
| #7 | AMALGAMET LIMITED | 100Excellent | #19 | – 0.0 | Raw Materials And Intermediate Goods |
| #8 | BROOKFIELD GLOBAL BUSINESS ADVISOR LIMITED | 100Excellent | #8 | ↑ 3.2 | — |
| #9 | OPET INTERNATIONAL LIMITED | 100Excellent | #10 | New | — |
| #10 | FLEETCOR EUROPE LIMITED | 100Excellent | #6 | – 0.0 | Energy |
| #11 | BNK UK LIMITED | 100Excellent | #10 | – 0.0 | — |
| #12 | SOUTH DOWNS WASTE SERVICES LIMITED | 100Excellent | #12 | ↑ 12.8 | Environment |
| #13 | LS QAM LIMITED | 100Excellent | #48 | – 0.0 | — |
| #14 | ARCH SYNDICATE INVESTMENTS LTD | 100Excellent | #37 | – 0.0 | Financial Services |
| #15 | OSBORNE CLARKE SERVICES | 100Excellent | #21 | ↑ 4.5 | — |
| #16 | GAP UK HOLDINGS LIMITED | 100Excellent | #34 | ↑ 1.2 | — |
| #17 | AMS ADVANCED MARKETING SERVICES INVESTMENTS LIMITED | 100Excellent | #37 | – 0.0 | — |
| #18 | AKO FOUNDATION | 100Excellent | #39 | – 0.0 | — |
| #19 | 3I GROUP PLC | 100Excellent | #40 | – 0.0 | — |
| #20 | ISLAND RESEARCH LLP | 100Excellent | #35 | – 0.0 | — |
| #21 | SILCHESTER PARTNERS LIMITED | 100Excellent | #36 | New | — |
| #22 | TRANSRE LONDON LIMITED | 100Excellent | #47 | – 0.0 | Financial Services |
| #23 | IPG EUROPE LTD | 100Excellent | #41 | – 0.0 | — |
| #24 | LAND SECURITIES CAPITAL MARKETS PLC | 100Excellent | #50 | – 0.0 | Financial Services |
| #25 | SILCHESTER CONTINUATION LIMITED | 100Excellent | #51 | – 0.0 | Software |
| #26 | AMS ADVANCED MARKETING SERVICES LIMITED | 100Excellent | #53 | ↑ 1.2 | — |
| #27 | SAINSBURY PROPCO A LIMITED | 100Excellent | #54 | – 0.0 | — |
| #28 | SOUTH EASTERN POWER NETWORKS PLC | 100Excellent | #56 | – 0.0 | — |
| #29 | KNIGHT FRANK SERVICES COMPANY | 100Excellent | #58 | – 0.0 | — |
| #30 | AKO CAPITAL LLP | 100Excellent | #20 | – 0.0 | Financial Services |
| #31 | EASTERN POWER NETWORKS PLC | 100Excellent | #60 | – 0.0 | Energy |
| #32 | SILCHESTER INTERNATIONAL INVESTORS LLP | 100Excellent | #62 | – 0.0 | Financial Services |
| #33 | TAQA BRATANI LNS LIMITED | 100Excellent | #63 | New | — |
| #34 | MYCITYDEAL LIMITED | 100Excellent | #71 | ↑ 0.4 | — |
| #35 | SMARTESTENERGY LIMITED | 100Excellent | #72 | ↓ 0.1 | Energy |
| #36 | DANNY SULLIVAN & SONS LTD. | 100Excellent | #75 | ↓ 0.0 | Property |
| #37 | MOTABILITY OPERATIONS LIMITED | 100Excellent | #81 | ↑ 1.0 | — |
| #38 | TRADEWILL LIMITED | 100Excellent | #80 | – 0.0 | — |
| #39 | CAPITA RETAIL FINANCIAL SERVICES LIMITED | 100Excellent | #77 | New | — |
| #40 | HSL (FM) LLP | 100Excellent | #78 | ↑ 13.8 | — |
| #41 | LLOYDS BANK GENERAL INSURANCE LIMITED | 100Excellent | #80 | ↑ 0.6 | Financial Services |
| #42 | REED & MACKAY TRAVEL LIMITED | 99Excellent | #87 | ↑ 0.4 | Events And Venues |
| #43 | DL INSURANCE SERVICES LIMITED | 99Excellent | #86 | ↑ 1.6 | Financial Services |
| #44 | AON INVESTMENTS LIMITED | 99Excellent | #89 | ↓ 0.6 | — |
| #45 | VA&E TRADING LLP | 99Excellent | #90 | ↓ 0.4 | — |
| #46 | LION ACADEMY TRUST | 99Excellent | #94 | ↑ 1.0 | Education |
| #47 | MCCANN-ERICKSON EMEA LIMITED | 99Excellent | #95 | ↓ 0.1 | — |
| #48 | AXA PPP HEALTHCARE LIMITED | 99Excellent | #101 | New | Financial Services |
| #49 | NEO ENERGY (UKCS) LIMITED | 99Excellent | #102 | ↑ 8.0 | Property |
| #50 | AXA SERVICES LIMITED | 99Excellent | #104 | New | — |
| #51 | LOMBARD NORTH CENTRAL PUBLIC LIMITED COMPANY | 99Excellent | #105 | ↓ 0.9 | — |
| #52 | METHANE SERVICES LIMITED | 99Excellent | #106 | New | Distribution And Delivery |
| #53 | THAT LOT CREATIVES LIMITED | 99Excellent | #109 | ↑ 1.7 | Creative |
| #54 | CAPITA BIRMINGHAM LIMITED | 99Excellent | #110 | New | — |
| #55 | MASTERCARD UK MANAGEMENT SERVICES LIMITED | 99Excellent | #111 | ↑ 9.6 | Financial Services |
| #56 | TUDOR CAPITAL EUROPE LLP | 99Excellent | #113 | ↓ 0.1 | Financial Services |
| #57 | STHREE PARTNERSHIP LLP | 99Excellent | #116 | ↑ 0.4 | Professional Services |
| #58 | SIMPLE ENERGY LIMITED | 99Excellent | #119 | ↓ 1.0 | Property |
| #59 | IPG HOLDINGS (UK) LIMITED | 99Excellent | #118 | ↓ 1.0 | Marketing And Sales |
| #60 | HUGE UK LIMITED | 99Excellent | #119 | ↓ 0.6 | Marketing And Sales |
| #61 | RBS INVOICE FINANCE LIMITED | 99Excellent | #120 | ↓ 0.2 | Software |
| #62 | FIDELIS UNDERWRITING LIMITED | 99Excellent | #121 | ↓ 1.1 | Financial Services |
| #63 | ST ANDREWS INSURANCE PLC | 99Excellent | #128 | ↑ 0.5 | Financial Services |
| #64 | MCDONALD'S RESTAURANTS LIMITED | 99Excellent | #124 | – 0.0 | Events And Venues |
| #65 | FINANCIAL SERVICES COMPENSATION SCHEME LIMITED | 99Excellent | #131 | ↑ 2.4 | — |
| #66 | CAPITA EMPLOYEE BENEFITS CONSULTING LIMITED | 99Excellent | #130 | ↑ 1.5 | — |
| #67 | BARCLAYS INVESTMENT SOLUTIONS LIMITED | 99Excellent | #126 | ↑ 3.0 | Financial Services |
| #68 | XTX MARKETS TECHNOLOGIES LIMITED | 99Excellent | #134 | New | Software |
| #69 | MCCANN-ERICKSON UK GROUP LIMITED | 99Excellent | #132 | ↓ 1.2 | — |
| #70 | VITOL SERVICES LIMITED | 99Excellent | #130 | ↑ 2.7 | — |
| #71 | CAPITA INSURANCE SERVICES LIMITED | 99Excellent | #134 | New | Financial Services |
| #72 | NEO ENERGY PETROLEUM LIMITED | 99Excellent | #138 | ↓ 0.1 | Energy |
| #73 | WESTERN MORTGAGE SERVICES LIMITED | 99Excellent | #141 | New | — |
| #74 | RESOURCE SOLUTIONS LIMITED | 99Excellent | #143 | New | Human Resources |
| #75 | TEESSIDE GAS & LIQUIDS PROCESSING | 99Excellent | #144 | New | Energy |
| #76 | ICBC STANDARD BANK PLC | 99Excellent | #146 | ↑ 1.8 | Financial Services |
| #77 | BROWN SHIPLEY & CO. LIMITED | 99Excellent | #147 | ↓ 0.6 | Financial Services |
| #78 | FRANKLIN TEMPLETON GLOBAL INVESTORS LIMITED | 99Excellent | #148 | ↓ 0.3 | Financial Services |
| #79 | INTERPUBLIC LIMITED | 99Excellent | #149 | ↑ 1.6 | Professional Services |
| #80 | PFPL (HOLDINGS) LTD. | 99Excellent | #151 | ↑ 2.4 | — |
| #81 | FBC (FUTUREBRAND) LIMITED | 99Excellent | #154 | ↑ 0.6 | Marketing And Sales |
| #82 | PHILLIPS 66 CS LIMITED | 99Excellent | #153 | ↑ 2.8 | — |
| #83 | LIONMAT CLOSED | 99Excellent | #155 | – 0.0 | — |
| #84 | FACTIVA LIMITED | 99Excellent | #156 | ↑ 0.4 | Software |
| #85 | AMERICAN EXPRESS SERVICES EUROPE LIMITED | 99Excellent | #158 | New | Travel And Transportation |
| #86 | OCTAGON WORLDWIDE LIMITED | 98Excellent | #159 | ↑ 0.9 | Marketing And Sales |
| #87 | BARCLAYS INSURANCE SERVICES COMPANY LIMITED | 98Excellent | #161 | ↑ 23.4 | Financial Services |
| #88 | ENFINIUM FERRYBRIDGE 2 LIMITED | 98Excellent | #172 | New | — |
| #89 | EAU ROUGE PROPERTIES, LTD. | 98Excellent | #170 | ↓ 1.6 | — |
| #90 | OCTAGON ATHLETE REPRESENTATION LIMITED | 98Excellent | #166 | ↓ 1.2 | — |
| #91 | AIG ASSET MANAGEMENT (EUROPE) LIMITED | 98Excellent | #168 | ↑ 1.3 | Financial Services |
| #92 | AMEY COMMUNITY LIMITED | 98Excellent | #171 | ↑ 27.1 | Property-related Goods And Services |
| #93 | THREADNEEDLE PORTFOLIO SERVICES LIMITED | 98Excellent | #173 | ↓ 0.3 | Financial Services |
| #94 | FRANKLIN TEMPLETON INVESTMENT MANAGEMENT LIMITED | 98Excellent | #174 | ↓ 0.5 | Financial Services |
| #95 | FRESNILLO PLC | 98Excellent | #175 | ↑ 0.8 | Raw Materials And Intermediate Goods |
| #96 | JACK MORTON WORLDWIDE LIMITED | 98Excellent | #176 | ↓ 0.3 | — |
| #97 | LEX AUTOLEASE LIMITED | 98Excellent | #177 | ↑ 0.6 | Road Travel |
| #98 | LOMBARD ODIER ASSET MANAGEMENT (EUROPE) LIMITED | 98Excellent | #179 | ↑ 0.5 | Financial Services |
| #99 | TAYLOR ROSE LIMITED | 98Excellent | #182 | New | Professional Services |
| #100 | COMCAB LONDON LTD | 98Excellent | #190 | ↑ 2.5 | Travel And Transportation |
