| Profinans Ltd | Professional & scientific | 2014 |
| Prohandling Ltd | Professional & scientific | 2023 |
| Project Timber Limited | Manufacturing | 2004 |
| Promac Investments Ltd | Financial services | 2017 |
| Prop-Ed Ltd | Real estate | 2025 |
| Propaf Ltd | Construction | 2016 |
| Propel Labs Ltd | Professional & scientific | 2025 |
| Proper Care Limited | Households | 2025 |
| Property Pigs Ltd | Real estate | 2026 |
| Prophet Analytics Limited | Information & communication | 2010 |
| Prorenovations Contractors Ltd | Construction | 2025 |
| Prosafe Protection Limited | Wholesale & retail | 2009 |
| Protea Asset Management Ltd | Professional & scientific | 2013 |
| Protek Specialists Limited | Construction | 2012 |
| Proteus Lodges Limited | Hospitality | 2009 |
| Proteus Park LLP | | 2009 |
| Proteus People Ltd | Professional & scientific | 2006 |
| Provision Business Consultancy (Financial Services) Limited | Professional & scientific | 2009 |
| PRT Testing Ltd | Professional & scientific | 2019 |
| Psychology Publishing Ltd | Information & communication | 2019 |
| PT by LP Ltd | Education | 2025 |
| PUB and Paddock Events Ltd | Hospitality | 2026 |
| Pubrelief Limited | Hospitality | 2026 |
| Pulse Comms (Midlands) Ltd | Information & communication | 2020 |
| Pulse Development (UK) Limited | Hospitality | 2007 |
| Pump Farm Day Nursery Ltd | Health & social care | 2011 |
| Purdy 4 Properties Limited | Real estate | 2023 |
| Pure Chaos Limited | Information & communication | 2013 |
| Pure Distribution Limited | Wholesale & retail | 2024 |
| Purereach Ltd | Administrative & support | 2020 |
| Puretow Mobile Towbar Fitting Ltd | Wholesale & retail | 2018 |
| PW Auto Repairs Limited | Wholesale & retail | 2022 |
| PW Process Limited | Manufacturing | 2013 |
| Q Kitchens Ltd | Wholesale & retail | 2025 |
| QA Business Assist Limited | Professional & scientific | 2011 |
| QDA Ltd | Wholesale & retail | 2025 |
| Quadrio Events Limited | Arts & recreation | 2026 |
| Qualis Energy Limited | Energy | 2025 |
| Quantum MEP Solutions & Consultancy Limited | Construction | 2026 |
| Quayle Industries Ltd | Construction | 2017 |
| Quirkshops CIC | Education | 2023 |
| Quirq Limited | Professional & scientific | 2023 |
| R & G Bett Limited | Agriculture & fishing | 1998 |
| R & H Cato Limited | Wholesale & retail | 2016 |
| R & J Properties Nottingham Limited | Real estate | 2012 |
| R & JC Heat Ltd | Agriculture & fishing | 2018 |
| R & M Builders (Newark) Limited | Construction | 2016 |
| R & R Concrete Ltd | Manufacturing | 2024 |
| R & R Contracts (Midlands) Limited | Construction | 2018 |
| R & R Farming Ltd | Agriculture & fishing | 2021 |
| R C Lawson Plastering Contractors Limited | Construction | 2013 |
| R H Fabrications Ltd | Manufacturing | 2015 |
| R P and D L Hutchinson Limited | Agriculture & fishing | 2003 |
| R T Lets Limited | Real estate | 2025 |
| R W Sutton Limited | Financial services | 2009 |
| R Whitmore Building Ltd | Construction | 2021 |
| R&D Urban Properties Ltd | Real estate | 2026 |
| R&H Supplies Ltd | Wholesale & retail | 2025 |
| R&Jc Ltd | Agriculture & fishing | 2018 |
| R&L Hospitality Ltd | Hospitality | 2025 |
| R&P Hutchinson Ltd | Professional & scientific | 2012 |
| R. C. Pinder Limited | Wholesale & retail | 1976 |
| R.A.J. Spink (Marnham) Limited | Agriculture & fishing | 2000 |
| R.P.M. (Newark) Limited | Construction | 2012 |
| R25 Developments Ltd | Information & communication | 2024 |
| Rachel Aesthetics Ltd | Other services | 2024 |
| Rachel Lund OTC Limited | Health & social care | 2002 |
| Racsy Limited | Transport & logistics | 2017 |
| RAD Wildlife Ltd | Information & communication | 2018 |
| RADI8 Chews Ltd | Wholesale & retail | 2026 |
| Radiance Newark Limited | Other services | 2022 |
| Radio Newark Limited | Information & communication | 2013 |
| Radioman Limited | Information & communication | 2019 |
| Radium Distribution Ltd | Professional & scientific | 2007 |
| Radium Lamps (UK) Limited | Administrative & support | 2002 |
| Radnor Consulting Limited | Administrative & support | 2017 |
| Rafale Design Limited | Professional & scientific | 2000 |
| Ragazza at Renishaw Hall Limited | Wholesale & retail | 2018 |
| Ragazza by Katie Fretwell Limited | Wholesale & retail | 2018 |
| Raid Audio Limited | Information & communication | 2024 |
| Rail Data Solutions Ltd | Information & communication | 2024 |
| Rainbow for LEA Limited | Other services | 2023 |
| Rainbow Nightfreight (Worcs) Limited | Transport & logistics | 1985 |
| Rainbow Nightfreight Limited | Transport & logistics | 1986 |
| Rainbows Furniture Ltd | Manufacturing | 2017 |
| Rainmaintain Limited | Manufacturing | 2011 |
| Rajdhaani Ltd. | Hospitality | 2017 |
| Ralph William Properties Ltd | Real estate | 2025 |
| Randall-Brown Ltd | Professional & scientific | 2026 |
| Rankfinal Residents Management Limited | Hospitality | 1988 |
| RAO Engineering Ltd | Professional & scientific | 2019 |
| Raptor Aspect (Shipping) Limited | Transport & logistics | 2014 |
| Rapture Projects Ltd | Extraterritorial | 2019 |
| Rascali Ltd | Real estate | 2022 |
| Raskelf Spice Ltd | Hospitality | 2018 |
| Rategoodgardens Ltd | Administrative & support | 2026 |
| Rationale Consulting Limited | Professional & scientific | 2020 |
| RAW Carpentry and Joinery Limited | Manufacturing | 2014 |
| RAW to Your Door (& More) Limited | Wholesale & retail | 2020 |
| RB Early Years Consultancy Ltd | Education | 2025 |