| 🥇 | PRA GROUP UK PORTFOLIOS LTD | 100Excellent | Financial Services | London | Get Certified |
| 🥈 | NEO ENERGY CENTRAL NORTH SEA LIMITED | 100Excellent | Energy | London | Get Certified |
| 🥉 | TUI TRAVEL AVIATION FINANCE LIMITED | 100Excellent | Professional Services | East of England | Get Certified |
| #4 | NATWEST BOXED LIMITED | 100Excellent | Financial Services | London | Get Certified |
| #5 | BNY MELLON FUND MANAGERS LIMITED | 100Excellent | Financial Services | London | Get Certified |
| #6 | WEST SLOPE RESIDENCIES LIMITED LIABILITY PARTNERSHIP | 100Excellent | — | North East | Get Certified |
| #7 | MACQUARIE EURO LIMITED | 100Excellent | Financial Services | London | Get Certified |
| #8 | HSBC GLOBAL SERVICES LIMITED | 100Excellent | Professional Services | Unknown | Get Certified |
| #9 | BANSOLS BETA LIMITED | 100Excellent | Events And Venues | South East | Get Certified |
| #10 | LAST MILE ELECTRICITY LIMITED | 100Excellent | Energy | Unknown | Get Certified |
| #11 | NISHKAM SCHOOLS MULTI ACADEMY TRUST | 100Excellent | Education | Other | Get Certified |
| #12 | INTERACTIVE INVESTOR SERVICES LIMITED | 99Excellent | Financial Services | Other | Get Certified |
| #13 | BURBO EXTENSION PSC LIMITED | 99Excellent | Financial Services | London | Get Certified |
| #14 | C & T RESTAURANTS LIMITED | 99Excellent | Lifestyle And Entertainment | East Midlands | Get Certified |
| #15 | MAMMOTH SCREEN LTD | 99Excellent | Professional Services | Other | Get Certified |
| #16 | PEREGRINE INTERNATIONAL LIMITED | 99Excellent | Education | London | Get Certified |
| #17 | SMART METER ASSETS 1 LTD | 99Excellent | Professional Services | East of England | Get Certified |
| #18 | PINE WALK CAPITAL LIMITED | 99Excellent | Financial Services | London | Get Certified |
| #19 | WHITE BEAR CAPITAL LIMITED | 99Excellent | Financial Services | London | Get Certified |
| #20 | PFPL PROJECTS (SANDWELL) LTD. | 98Excellent | Professional Services | London | Get Certified |
| #21 | TUSKERDIRECT LIMITED | 98Excellent | Road Travel | Unknown | Get Certified |
| #22 | MASTERMELT LIMITED | 98Excellent | Manufacturing | Other | Get Certified |
| #23 | CONCRETE REPAIRS LIMITED | 98Excellent | Infrastructure And Construction | Other | Get Certified |
| #24 | THE TRAVEL CHAPTER LIMITED | 98Excellent | Travel And Transportation | South West | Get Certified |
| #25 | ZENITH BANK (UK) LIMITED | 98Excellent | Financial Services | London | Get Certified |
| #26 | LEUMI UK GROUP LIMITED | 98Excellent | Financial Services | London | Get Certified |
| #27 | NICOBRAND LIMITED | 98Excellent | Life Sciences And Medical Technology | Northern Ireland | Get Certified |
| #28 | MACQUARIE (UK) GROUP SERVICES LIMITED | 98Excellent | — | London | Get Certified |
| #29 | LEE CHAPEL MULTI ACADEMY TRUST | 98Excellent | Education | East of England | Get Certified |
| #30 | INSPIRIT PINE TOPCO LIMITED | 98Excellent | Financial Services | London | Get Certified |
| #31 | STHREE UK HOLDINGS LIMITED | 98Excellent | Professional Services | London | Get Certified |
| #32 | MOSAIC PARTNERSHIP TRUST | 98Excellent | Education | South West | Get Certified |
| #33 | BREESEA LIMITED | 97Excellent | Professional Services | London | Get Certified |
| #34 | HSBC GLOBAL ASSET MANAGEMENT LIMITED | 97Excellent | Financial Services | Unknown | Get Certified |
| #35 | SONNINGMAY WIND LIMITED | 97Excellent | Professional Services | London | Get Certified |
| #36 | SOUNDMARK WIND LIMITED | 97Excellent | Professional Services | London | Get Certified |
| #37 | HUNTING KNIGHTSBRIDGE HOLDINGS LIMITED | 97Excellent | Professional Services | London | Get Certified |
| #38 | FIRSTBANK UK LIMITED | 97Excellent | Financial Services | London | Get Certified |
| #39 | TRUE POTENTIAL WEALTH MANAGEMENT LLP | 97Excellent | — | North East | Get Certified |
| #40 | WALNEY EXTENSION LIMITED | 97Excellent | Professional Services | London | Get Certified |
| #41 | SHERWOOD RESTAURANTS LTD | 97Excellent | Events And Venues | Yorkshire and The Humber | Get Certified |
| #42 | HSBC INNOVATION BANK LIMITED | 97Excellent | Financial Services | London | Get Certified |
| #43 | TRUE POTENTIAL LLP | 96Excellent | — | North East | Get Certified |
| #44 | TRUE POTENTIAL ADMINISTRATION LLP | 96Excellent | — | North East | Get Certified |
| #45 | RELIABLE CONTRACTORS LIMITED | 96Excellent | Infrastructure And Construction | South East | Get Certified |
| #46 | PORTFOLIO COMPANY ADVISORS EUROPE, LLP | 96Excellent | — | London | Get Certified |
| #47 | THE MEDICAL & DIAGNOSTIC CARE GROUP LIMITED | 96Excellent | Healthcare And Wellbeing | East of England | Get Certified |
| #48 | VANGUARD INVESTMENTS UK, LIMITED | 95Excellent | Financial Services | London | Get Certified |
| #49 | KELTBRAY GROUP LIMITED | 95Excellent | Financial Services | South East | Get Certified |
| #50 | UK GREEN INVESTMENT LYLE LIMITED | 95Excellent | Financial Services | South East | Get Certified |
| #51 | RACE BANK WIND FARM LIMITED | 95Excellent | Energy | London | Get Certified |
| #52 | TRUE POTENTIAL INVESTMENTS LLP | 95Excellent | Financial Services | North East | Get Certified |
| #53 | NUCLEUS FINANCIAL SERVICES LIMITED | 95Excellent | Financial Services | South West | Get Certified |
| #54 | HORNSEA 1 LIMITED | 94Excellent | Professional Services | London | Get Certified |
| #55 | BECHTEL ENKA UK LIMITED | 94Excellent | Property | Unknown | Get Certified |
| #56 | LONDON STOCK EXCHANGE GROUP HOLDINGS LIMITED | 94Excellent | Professional Services | London | Get Certified |
| #57 | SYNECHRON LIMITED | 94Excellent | Information Technology | London | Get Certified |
| #58 | PROSTATE CANCER UK | 94Excellent | Software | London | Get Certified |
| #59 | MHA AUDIT SERVICES LLP | 94Excellent | — | South East | Get Certified |
| #60 | EG MANAGER UK LLP | 94Excellent | — | London | Get Certified |
| #61 | CPL PRODUCTIONS LIMITED | 94Excellent | Media And Publishing | London | Get Certified |
| #62 | K. FOLEY LIMITED | 94Excellent | Events And Venues | East of England | Get Certified |
| #63 | CYGNET LEARNING DISABILITIES MIDLANDS LIMITED | 94Excellent | Healthcare And Wellbeing | South East | Get Certified |
| #64 | RENEWABLE TRANSPORT FUEL SERVICES LIMITED | 93Excellent | Energy | South East | Get Certified |
| #65 | NATWEST GROUP PLC | 93Excellent | Financial Services | Scotland | Get Certified |
| #66 | ALPHASIGHTS LTD | 93Excellent | Software | London | Get Certified |
| #67 | TELEGRAPH MEDIA GROUP HOLDINGS LIMITED | 93Excellent | Marketing And Sales | London | Get Certified |
| #68 | DIGITAL MONEYBOX LIMITED | 93Excellent | Software | London | Get Certified |
| #69 | EXODUSPOINT CAPITAL MANAGEMENT UK, LLP | 93Excellent | — | London | Get Certified |
| #70 | PE LIMITED | 93Excellent | Professional Services | South East | Get Certified |
| #71 | CRAMLINGTON RENEWABLE ENERGY DEVELOPMENTS LIMITED | 93Excellent | Energy | South East | Get Certified |
| #72 | TRUE POTENTIAL GROUP LIMITED | 93Excellent | Professional Services | North East | Get Certified |
| #73 | CYGNET BEHAVIOURAL HEALTH LIMITED | 93Excellent | Healthcare And Wellbeing | South East | Get Certified |
| #74 | WALNEY EXTENSION PSC LIMITED | 92Excellent | Professional Services | London | Get Certified |
| #75 | ARACHNE HOLDCO (UK) LIMITED | 92Excellent | Financial Services | South East | Get Certified |
| #76 | CYGNET NW LIMITED | 92Excellent | Healthcare And Wellbeing | South East | Get Certified |
| #77 | ACORN INSURANCE AND FINANCIAL SERVICES LIMITED | 92Excellent | Financial Services | Unknown | Get Certified |
| #78 | GROUND CONTROL LIMITED | 92Excellent | Professional Services | East of England | Get Certified |
| #79 | EUROPE ARAB BANK PLC | 92Excellent | Financial Services | London | Get Certified |
| #80 | GREEN INVESTMENT GROUP INVESTMENTS LIMITED | 92Excellent | Financial Services | Scotland | Get Certified |
| #81 | INFINITY UK BORROWER 1 LIMITED | 92Excellent | Financial Services | London | Get Certified |
| #82 | CRA INTERNATIONAL (UK) LIMITED | 92Excellent | Professional Services | London | Get Certified |
| #83 | STENA DRILLMAX ICE LIMITED | 92Excellent | Energy | London | Get Certified |
| #84 | VIFOR PHARMA UK LIMITED | 92Excellent | Life Sciences And Medical Technology | London | Get Certified |
| #85 | SPOTIFY LIMITED | 92Excellent | Professional Services | London | Get Certified |
| #86 | MACQUARIE UK HOLDINGS LIMITED | 91Excellent | Professional Services | London | Get Certified |
| #87 | SCHRODER CORPORATE SERVICES LIMITED | 91Excellent | Professional Services | London | Get Certified |
| #88 | MHA ADVISORY LTD | 91Excellent | Financial Services | South East | Get Certified |
| #89 | MEDIK8 LIMITED | 91Excellent | Raw Materials And Intermediate Goods | Other | Get Certified |
| #90 | WESTERN UNION PAYMENT SERVICES GB LIMITED | 90Excellent | Financial Services | London | Get Certified |
| #91 | TETRA TECH LIMITED | 90Excellent | Professional Services | Yorkshire | Get Certified |
| #92 | CCLA INVESTMENT MANAGEMENT LIMITED | 90Excellent | Financial Services | London | Get Certified |
| #93 | THE TRUE LEARNING PARTNERSHIP | 90Good | Education | North West | Get Certified |
| #94 | SEAGREEN WIND ENERGY LIMITED | 89Good | Energy | South East | Get Certified |
| #95 | RIDGE SURVEYORS LIMITED | 89Good | Professional Services | South East | Get Certified |
| #96 | CYGNET (DH) LIMITED | 89Good | Healthcare And Wellbeing | South East | Get Certified |
| #97 | LEIDOS SECURITY DETECTION & AUTOMATION U.K. LTD. | 89Good | Software | South East | Get Certified |
| #98 | TRIODOS BANK UK LIMITED | 89Good | Financial Services | South West | Get Certified |
| #99 | LINCS WIND FARM LIMITED | 89Good | Energy | Scotland | Get Certified |
| #100 | LIFE EDUCATION TRUST | 89Good | Education | Other | Get Certified |