| Riserapp Ltd | Information & communication | 2024 |
| Ritchards Holdings Ltd | Financial services | 2024 |
| Ritchards Trading Ltd | Professional & scientific | 2025 |
| Rivil Limited | Wholesale & retail | 2024 |
| RJ Builders Yorkshire Ltd | Construction | 2020 |
| RJ Leisure Limited | Hospitality | 2023 |
| RJP Consulting Services Ltd | Professional & scientific | 2018 |
| RJS Bathrooms Ltd | Construction | 2019 |
| RMB Landscapes Ltd | Administrative & support | 2022 |
| RNR Consulting Limited | Professional & scientific | 2024 |
| Road Assist Ltd | Construction | 2025 |
| Roadway Holdings Limited | Real estate | 2016 |
| Roadway UK (TM) Ltd | Public administration | 2014 |
| ROB Arnold & Sons Builders Limited | Construction | 2021 |
| ROB Arnold & Sons Rentals Limited | Real estate | 2024 |
| ROB Skipsey Limited | Other services | 2021 |
| Robert Falkingham Limited | Agriculture & fishing | 2012 |
| Robert Michael Salon Limited | Other services | 2010 |
| Robert Whaley Ltd | Construction | 2013 |
| Robin Leisure Ltd | Hospitality | 2025 |
| Robs Plumbing and Building Services Ltd | Construction | 2024 |
| ROC Wolf Consulting Ltd | Administrative & support | 2021 |
| Rock Drill Services Limited | Manufacturing | 2006 |
| Rockets Hideout Ltd | Wholesale & retail | 2025 |
| Rodgers Tavern Limited | Hospitality | 2015 |
| Roken Limited | Transport & logistics | 2023 |
| Rollinson Food Design Limited | Wholesale & retail | 2025 |
| RON Charles Ltd | Other services | 2015 |
| Roodles Design LLP | | 2017 |
| Rooms Dotcom Ltd | Real estate | 2024 |
| Rooms for ALL Limited | Wholesale & retail | 2013 |
| Rosebud Enterprises Limited | Construction | 2011 |
| Rosedene Builders Ltd | Construction | 2020 |
| Rousseau Associates Limited | Information & communication | 2014 |
| Routeone Transport Ltd | Transport & logistics | 2025 |
| Rowen Jewellers Limited | Wholesale & retail | 2024 |
| Royal Oak Selby Limited | Hospitality | 2010 |
| Ruby Lily Retail Ltd | Wholesale & retail | 2019 |
| Rucklidge Law Limited | Professional & scientific | 2019 |
| Rueben Properties Ltd | Real estate | 2000 |
| Ruscon Limited | Professional & scientific | 2023 |
| Ryad Golf Ltd | Wholesale & retail | 2025 |
| Ryannet Training Limited | Information & communication | 2016 |
| Rydez Ltd | Transport & logistics | 2024 |
| Rymek Solutions Limited | Information & communication | 2010 |
| Rytimber Ltd | Financial services | 2022 |
| S & L Motorhomes Ltd | Manufacturing | 2010 |
| S & M Builders (Selby) Limited | Construction | 2006 |
| S J Crabb Limited | Administrative & support | 2014 |
| S R Hospitality (2020) Limited | Hospitality | 2020 |
| S T Plastering & Rendering Limited | Construction | 2020 |
| S&D Facilities Management Ltd | Administrative & support | 2022 |
| S.Mcnicholas Ltd | Construction | 2024 |
| Saddle & Glass Limited | Wholesale & retail | 2023 |
| Safari Sams Limited | Extraterritorial | 2001 |
| Safer Roadworks (Fleet) Ltd | Administrative & support | 2021 |
| Safer Roadworks (Traffic Management) Ltd | Construction | 2025 |
| Safer Roadworks Limited | Transport & logistics | 2021 |
| Safer Solutions Ltd | Public administration | 2025 |
| Safety & Surveying Solutions Ltd | Administrative & support | 2017 |
| Safety Angels Limited | Professional & scientific | 2018 |
| Saha Media Limited | Professional & scientific | 2024 |
| Saige Pilates Ltd | Arts & recreation | 2025 |
| Sailmaker Cottages Limited | Real estate | 2006 |
| Saint Building Contractors Ltd | Construction | 2025 |
| Sales Specialist Ltd | Transport & logistics | 2022 |
| Samanddance Ltd | Arts & recreation | 2006 |
| Samills Property Ltd | Real estate | 2023 |
| Samonic Ltd | Information & communication | 2024 |
| Sand Projex Ltd | Construction | 2022 |
| Sandal Dental Care Limited | Health & social care | 2021 |
| Sandbeck CIS Limited | Construction | 2015 |
| Sandbeck Group Limited | Professional & scientific | 2015 |
| Sandbeck Limited | Construction | 2012 |
| Sandbeck Umbrella Limited | Construction | 2014 |
| Sandhouse Limited | Construction | 2025 |
| SAS Safety Services Ltd | Professional & scientific | 2026 |
| Saskia Fenwick Ltd | Other services | 2023 |
| SAY Tenerife Limited | Real estate | 2016 |
| SB Letting Properties Ltd | Real estate | 2026 |
| SB Project Management Services Ltd | Construction | 2022 |
| Scenic Software Limited | Information & communication | 2012 |
| Schofield Transport Limited | Transport & logistics | 2008 |
| Schofield Waste Management Ltd | Water & waste | 2018 |
| Schv Limited | Construction | 2011 |
| Scientific and Laboratory Consulting Ltd | Professional & scientific | 2015 |
| Scorpius Quality Consulting Ltd | Professional & scientific | 2025 |
| Scott GAS Plumbing & Heating Ltd | Construction | 2023 |
| Scott.Hodson Engineering Limited | Professional & scientific | 2025 |
| SCP Property Services Limited | Construction | 2025 |
| Sdra Fast Food Ltd | Hospitality | 2015 |
| Search a Surveyor Limited | Administrative & support | 2024 |
| Seas Maytech Limited | Administrative & support | 2007 |
| Seasons Express Ltd | Transport & logistics | 2020 |
| Secrets of North Duffield Limited | Other services | 2026 |
| Sedamyl Farming Limited | Agriculture & fishing | 2025 |
| Seesaw Consultancy Limited | Other services | 2012 |
| Selby & Super Market Ltd | Wholesale & retail | 2025 |
| Selby and District Housing Trust | Construction | 2013 |
| Selby Boatman Services Limited | Transport & logistics | 2005 |