| 'Enterprise Singapore Board' | London | A rating | International Agreement |
| "K" Line Energy Shipping (UK) Limited | LONDON | A rating | Skilled Worker |
| 00Nation Limited | London | A rating | Skilled Worker |
| 10 Europe Limited | Edinburgh | A rating | Skilled Worker |
| 17 Capital Services Ltd | London | A rating | Skilled Worker |
| 1E Limited | London | A rating | Skilled Worker |
| 1GLOBAL Operations (UK) Limited | London | A rating | Skilled Worker |
| 2 Sisters Food Group Limited | Wakefield | A rating | Skilled Worker |
| 26 DEGREES GLOBAL MARKETS (UK)LIMITED | London | A rating | Skilled Worker |
| 26.2 Services Limited | London | A rating | Skilled Worker |
| 2H Offshore Engineering Ltd | Woking | A rating | Skilled Worker |
| 2i Limited | Edinburgh | A rating | Skilled Worker |
| 2X GLOBAL LIMITED | London | A rating | Skilled Worker |
| 3-D Matrix UK Limited | London | A rating | Skilled Worker |
| 360 Trading Networks UK Limited | London | A rating | Skilled Worker |
| 3D Systems Europe Ltd | Hemel Hempstead | A rating | Skilled Worker |
| 3dMD Technologies Limited | London | A rating | Skilled Worker |
| 3Forge UK LTD | London | A rating | Skilled Worker |
| 3i plc | London | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| 3ie UK | London | A rating | Skilled Worker |
| 3M United Kingdom PLC | Bracknell | A rating | Skilled Worker |
| 3T Additive Manufacturing Ltd | Newbury | A rating | Skilled Worker, Graduate Trainee (Global Business Mobility) |
| 4170 UK LLP | London | A rating | Skilled Worker |
| 42Gears Mobility Systems (UK) Ltd | Manchester | A rating | Skilled Worker |
| 44 ENERGY LTD | London | A rating | Skilled Worker |
| 4C EUROPE UK LTD | London | A rating | Skilled Worker |
| 4iApps Solutions Ltd | London | A rating | Skilled Worker |
| 4M LONDON LIMITED | LONDON | A rating | Skilled Worker |
| 54 Queens Gate Hotel Limited | London | A rating | — |
| 65 Equity Partners Management (UK) Limited | London | A rating | Skilled Worker |
| 6sense Insights UK Ltd | London | A rating | Skilled Worker |
| 720 Management Limited | London | A rating | Skilled Worker |
| 7TH HEAVEN FOODS LIMITED | London | A rating | Skilled Worker |
| 80:20 Procurement Services Limited | Aberdeen | A rating | Skilled Worker |
| 8th Light Ltd | London | A rating | Skilled Worker |
| 8x8 UK LIMITED | AYLESBURY | A rating | Skilled Worker |
| 98 Land and House Company | LONDON | A rating | Skilled Worker |
| 9Yards Communications Limited | London | A rating | Skilled Worker |
| A Cloud Guru Ltd | Twickenham | A rating | Skilled Worker |
| A Cloud Guru Ltd | London | A rating | Skilled Worker |
| A Million Ads Limited | London | A rating | Skilled Worker |
| A Nelson & Co Ltd | London | A rating | Skilled Worker |
| A T Kearney Limited | London | A rating | Skilled Worker |
| A Travel Agency London Office Limited | Hounslow | A rating | Skilled Worker |
| A. HAK UK Limited | Stafford | A rating | Skilled Worker |
| A.B. Hotels (The Arch London) Limited | London | A rating | Skilled Worker |
| A.M. Best Europe Rating Services Limited | London | A rating | Skilled Worker |
| A.M. Qattan Foundation | London | A rating | Creative Worker, Skilled Worker |
| A.P.T. Capital | London | A rating | Skilled Worker |
| A24 Group Ltd | Sutton | A rating | Skilled Worker |
| AA Access Partnership Limited | London | A rating | Skilled Worker |
| AAAS Science International inc | Cambridge | A rating | Skilled Worker |
| AAC Technologies (Scotland) Limited | Edinburgh | A rating | Skilled Worker |
| AAF-Ltd | Cramlington | A rating | Skilled Worker |
| Aalberts IPS | Doncaster | A rating | — |
| AAR International, Inc. | London | A rating | Skilled Worker |
| Aareon UK Limited | London | A rating | Skilled Worker |
| AArete UK Limited | Felbridge, East Grinstead | A rating | Skilled Worker |
| Aarsleff Ground Engineering Ltd | Newark on Trent | A rating | Skilled Worker |
| AAS Mid-Cap UK Branch | London | A rating | Skilled Worker |
| AASEYA SOFTWARE SERVICES (UK) LTD | Steyning | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| AB Agri Limited | Peterborough | A rating | Skilled Worker |
| AB InBev UK Ltd | London | A rating | Skilled Worker, Graduate Trainee (Global Business Mobility) |
| AB Mauri (UK)Ltd | Peterborough | A rating | Skilled Worker |
| Abacus Cambridge Partners Ltd | London | A rating | Skilled Worker |
| Abacus Information Technology UK Limited | London | A rating | Skilled Worker |
| ABACUSBIO INTERNATIONAL LIMITED | CITY OF EDINBURGH | A rating | Skilled Worker |
| ABB Limited | Daresbury | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| Abbott Diabetes Care UK Limited | Witney | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| Abbott Laboratories Limited | Maidenhead | A rating | Skilled Worker, Graduate Trainee (Global Business Mobility) |
| Abbvie Limited | Maidenhead | A rating | Skilled Worker |
| ABC International Bank Plc | London | A rating | Skilled Worker |
| Abcam Limited | Cambridge | A rating | Skilled Worker |
| ABeam Consulting Ltd., UK Branch | London | A rating | Skilled Worker |
| Abeko Dredging and Marine Contractors Ltd. | Conwy | A rating | Skilled Worker |
| Aberdeen Group Plc | Edinburgh | A rating | Skilled Worker, Graduate Trainee (Global Business Mobility) |
| ABF Ingredients Limited | Peterborough | A rating | Skilled Worker |
| ABG Europe (UK) Limited | Altrincham | A rating | Skilled Worker |
| ABG SUNDAL COLLIER LIMITED | London | A rating | — |
| Abingworth LLP | London | A rating | Skilled Worker |
| ABL Energy & Marine Consultants Limited | London | A rating | Skilled Worker |
| ABMI Engineering UK Ltd | London | A rating | Skilled Worker |
| ABN AMRO Bank N.V., UK Branch | London | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| Abrasive Technology Limited | Colwyn Bay | A rating | Skilled Worker |
| ABS Europe Limited | London | A rating | Skilled Worker |
| ABS QE Assurance Services (UK) Ltd | Warrington | A rating | Skilled Worker |
| Absa Securities United Kingdom Limited | London | A rating | Skilled Worker |
| Absolutdata Analytics UK Limited | Harpenden | A rating | Skilled Worker |
| Absolute Antibody Limited | Redcar | A rating | Skilled Worker |
| Abt Britain Limited | London | A rating | Skilled Worker |
| AC Talent Sport & Entertainment UK Limited | London | A rating | Skilled Worker |
| ACA Compliance (Europe) Limited | London | A rating | Skilled Worker |
| Academy of Motion Picture Arts and Sciences | London | A rating | Creative Worker, Skilled Worker |
| Acadian Asset Management (UK) Limited | London | A rating | Skilled Worker |
| ACAMS (UK) Ltd | London | A rating | Skilled Worker |
| Accedo UK Limited | London | A rating | Skilled Worker |
| ACCENT International Consortium for Academic Programs Abroad, Ltd. | London | A rating | — |
| Accentra Technologies Ltd | London | A rating | Skilled Worker |
| Accenture (UK) Limited | London | A rating | Skilled Worker |
| Accertify (UK) Limited | London | A rating | Skilled Worker |
| Access Capital Partners (UK) Ltd. | London | A rating | Skilled Worker |
| Access Fintech (UK) Limited | London | A rating | Skilled Worker |
| Access Industries (UK) Limited | London | A rating | Skilled Worker |
| Access UK Limited | Loughborough | A rating | Skilled Worker |
| accesso Technology Group | Ruscombe Business Park | A rating | Skilled Worker |
| Accion Labs (UK) Limited | Radlett | A rating | Skilled Worker |
| Acciona Agua UK Limited | London | A rating | Skilled Worker |
| Acciona Industrial UK Ltd | Aberdeen | A rating | Skilled Worker |
| ACCO UK LTD | AYLESBURY | A rating | Skilled Worker |
| Accolade Wines Limited | Bristol | A rating | Skilled Worker |
| Accolite Labs Europe Limited | London | A rating | Skilled Worker |
| Accor HotelServices UK Ltd | London | A rating | Skilled Worker |
| Accor UK Limited | London | A rating | Skilled Worker |
| Accord Europe Limited | London | A rating | Skilled Worker |
| Accord Healthcare Limited | North Harrow | A rating | Skilled Worker |
| Accordience Group Limited | London | A rating | Skilled Worker |
| Accordion Partners UK Ltd | London | A rating | Skilled Worker |
| Accounting People Ltd | London | A rating | Skilled Worker |
| Accredible Ltd | Ely | A rating | Skilled Worker |
| Accura Law Firm (UK) Limited | London | A rating | Skilled Worker |
| Accuver EMEA Ltd. | Watford | A rating | Skilled Worker |
| ACER International Limited | London | A rating | Skilled Worker |
| Acer UK Limited | West Drayton | A rating | Skilled Worker |
| Acerinox (U.K.) LIMITED | West Midlands | A rating | Skilled Worker |
| ACG Europe Ltd | Corby | A rating | Skilled Worker |
| Achievers Solutions UK Ltd | London | A rating | Skilled Worker |
| Achilles Group Limited | Abindgon | A rating | Skilled Worker |
| ACI Worldwide (EMEA) Limited | Brookwood | A rating | Skilled Worker |
| acime UK Ltd | Manchester | A rating | Graduate Trainee (Global Business Mobility) |
| ACNielsen Company Limited | Oxford | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| ACORD Corporation | London | A rating | Skilled Worker |
| Acorn Insurance and Financial Services Limited | Liverpool | A rating | Skilled Worker |
| Acorn Water UK Ltd | London | A rating | Skilled Worker |
| Acoustic Marketing UK Ltd | London | A rating | Skilled Worker |
| Acquia Ltd | Cheltenham | A rating | Skilled Worker |
| Acquis Consulting UK Limited | London | A rating | Skilled Worker |
| Acrisure International Holdings | London | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| Acro Aircraft Seating Limited | Crick | A rating | Skilled Worker |
| Acron Aviation Training Solutions Limited | Altrincham | A rating | Skilled Worker |
| ACS International Ltd - UK Branch | Beaconsfield | A rating | Skilled Worker |
| Acta Marine UK Limited | South Shields | A rating | Skilled Worker |
| Actagon Limited | Oxford | A rating | Skilled Worker |
| Actalent Services Limited | Bracknell | A rating | Skilled Worker |
| Acteon Group Operations (UK) Limited | Norwich | A rating | Skilled Worker |
| Actimize UK Limited | London | A rating | Skilled Worker |
| Action for Humanity | Salford | A rating | Charity Worker, Skilled Worker |
| ActionAid UK | London | A rating | Skilled Worker |
| Actis LLP | London | A rating | Skilled Worker |
| Actito UK | London | A rating | Skilled Worker |
| Actium Bidco (UK) Limited | London | A rating | Skilled Worker |
| Actium Holdings Limited | London | A rating | Skilled Worker |
| ACTIVE INTERNATIONAL LTD | LONDON | A rating | Skilled Worker |
| ActiveDocs UK Limited | London | A rating | Skilled Worker |
| ActiveOps PLC | Reading | A rating | Skilled Worker |
| ActiveViam Ltd | London | A rating | Skilled Worker |
| Activision Europe, Limited | Birmingham | A rating | Skilled Worker |
| Activum SG UK Advisors Limited | London | A rating | Skilled Worker |
| Actum International UK Limited | London | A rating | Skilled Worker |
| Acuiti Labs Limited | London | A rating | Skilled Worker |
| ACUITY KNOWLEDGE PARTNERS (UK) LIMITED | London | A rating | Skilled Worker |
| Acuma Solutions Limited | Stockport | A rating | Skilled Worker |
| Acutus Medical UK Ltd | London | A rating | Skilled Worker |
| Acuvate Software Ltd | London | A rating | Skilled Worker |
| Acxiom Limited | London | A rating | Skilled Worker |
| Ada Digital Health Ltd | London | A rating | Skilled Worker |
| Adalvo UK Ltd | London | A rating | Skilled Worker |
| Adam Smith International Limited | London | A rating | Skilled Worker |
| ADAMA Agricultural Solutions UK ltd | Theale | A rating | Skilled Worker |
| Adamson Associates (International) Ltd | London | A rating | Skilled Worker |
| Adaptive Financial Consulting Ltd | London | A rating | Skilled Worker |
| ADDEPAR UK LTD | Edinburgh | A rating | Skilled Worker |
| Addionics Limited | London | A rating | Skilled Worker |
| Addleshaw Goddard LLP | London | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| Adecco UK Limited | London | A rating | Skilled Worker |
| Ademco 1 Limited | Berks | A rating | Skilled Worker |
| Aderant Legal (UK) Limited | London | A rating | Skilled Worker |
| Adevinta UK Limited | London | A rating | Skilled Worker |
| Adi Nechasim Limited | London | A rating | — |
| adidas UK Ltd | Stockport | A rating | Graduate Trainee (Global Business Mobility), Skilled Worker |
| Adient Seating UK Ltd | Birmingham | A rating | Skilled Worker |
| Adjust Software Limited | Watford | A rating | Skilled Worker |
| Adlens Limited | Eynsham | A rating | Skilled Worker |
| ADM Promotions UK Limited | London | A rating | Skilled Worker |
| ADM-Indicia Marketing Services Limited | London | A rating | Skilled Worker |
| Administrate Ltd | Edinburgh | A rating | Skilled Worker |
| Admiral Markets UK Ltd | London | A rating | Skilled Worker |
| ADNOC International UK Limited | London | A rating | Skilled Worker |
| Adobe Systems Europe Limited | Reading | A rating | Skilled Worker |
| Adonis Smart Foods Ltd | LONDON | A rating | Skilled Worker, Graduate Trainee (Global Business Mobility) |
| ADP Consulting & Engineering Ltd | London | A rating | Skilled Worker |
| Adroll UK Limited | London | A rating | Skilled Worker |
| ADROSONIC UK LIMITED | LONDON | A rating | Skilled Worker |
| Adtec Europe Ltd | Twickenham | A rating | — |
| Adthena Ltd | London | A rating | Skilled Worker |
| ADTRAN Europe Limited | Basingstoke | A rating | Skilled Worker |
| ADVANCE AI LTD | Abbotsley | A rating | Skilled Worker |
| Advanced Accelerator Applications (UK & Ireland) Limited | London | A rating | Skilled Worker |
| Advanced Healthcare Ltd | Tonbridge | A rating | — |
| Advanced Logistics for Aerospace (UK) Ltd | Esher | A rating | Skilled Worker |
| Advanced Manufacturing Control Systems (UK) Ltd | Nuneaton | A rating | Skilled Worker |