Author: Adithya Srinivasan | Register dated | Source: Home Office
OPEN HOUSE CARE LTD
Open House London Limited
Open Hydro Ltd
Open Influence UK Limited
Open Network Systems Limited
Open Ocean UK LLP
OPENORIGINS LIMITED
Openpay UK Ltd
OpenPayd Holdings Ltd
Opensee Limited
OpenSignal Limited
Open Society Foundation London
Open Source Centre Limited
OpenSymmetry Consulting Limited
OpenTable International Limited
Open Technology Services UK Limited
Open Utility Ltd
Open Volume Studio Ltd
Openweather LTD
Openweather Ltd.
OPEN WORLD FINANCIAL SERVICES LTD
OpenX Limited
Opera Gallery Group Limited
Operations.Finance Limited
Operexx Ltd
OPERIS GROUP PLC
Opes Financial Partners Ltd
Opet International Ltd
Ophelos Ltd
Opia Limited
Opinium Research LLP
Opinr UK Software Limited
OPIS ON PHARMACEUTICAL INDUSTRY SERVICE UK LTD
OPKITCHEN LTD
O. P. L. Limited
Oplog UK Limited
Oppenheimer Europe Ltd
Oppenheimer Generations Services UK Limited
OPPERMANN LONDON LTD
Oppida Estates Ltd
Oppizi UK Limited
Oppo Brothers Ltd
Opportunity Green
OPRE Solutions Ltd
OPR Services Ltd
OPSECURED LTD
Opsmatix Systems Ltd
Opsmorph
OPSO LTD
OPS Wines Ltd
Added to the register since 16 October 2026.
No longer on the register, so they can't issue new sponsorships.