| Pete Stephenson Limited | Other services | 2023 |
| Peter Morton Commercial Properties Limited | Real estate | 1989 |
| Peterborough Motors Limited | Professional & scientific | 1944 |
| Pfco Limited | Real estate | 2019 |
| PG Games Ltd | Manufacturing | 2025 |
| Philosophy for Schools Ltd | Education | 2012 |
| Piedaniel's Limited | Hospitality | 2025 |
| PIZZAKEBABWELL2 Limited | Hospitality | 2026 |
| Pizzuti Kitchen Ltd | Wholesale & retail | 2023 |
| Plumb One Plumb ALL Limited | Construction | 2023 |
| PPC Marketing Limited | Professional & scientific | 2009 |
| Process Realisation Limited | Information & communication | 2026 |
| Profencer Limited | Wholesale & retail | 2012 |
| Progress Court Management Limited | Real estate | 1991 |
| Project Nexo Limited | Administrative & support | 2025 |
| Prospera Estates Limited | Real estate | 2017 |
| Prospera Wealth Limited | Financial services | 2022 |
| PT Trading Ltd | Professional & scientific | 2025 |
| Pure Rural Limited | Administrative & support | 2017 |
| PXW Limited | Hospitality | 2019 |
| PXW2 Ltd | Hospitality | 2023 |
| Quite Frankly Trading Company Limited | Wholesale & retail | 2012 |
| R a Fairey Limited | Construction | 2014 |
| R F & O Lettings Ltd | Real estate | 2016 |
| R F & O Properties Ltd | Real estate | 2007 |
| R F & O Property Sales Limited | Real estate | 2017 |
| R.Collis Ltd | Transport & logistics | 2018 |
| Rajaz Ltd | Hospitality | 2012 |
| Rala Investments Ltd | Construction | 2023 |
| RCB Business Services Limited | Professional & scientific | 2014 |
| RDT Financial Planning Ltd | Financial services | 2026 |
| Read's of Peterborough Limited | Professional & scientific | 1938 |
| Reaney Group Ltd | Financial services | 2022 |
| Redeye.Com Limited | Transport & logistics | 2000 |
| Regency House Management (Bakewell) Limited | Real estate | 1987 |
| Rejuvuu Ltd | Health & social care | 2026 |
| Relativ Analytics Ltd | Information & communication | 2022 |
| Rent and Relax Properties Ltd | Real estate | 2022 |
| Renwick Stoneworks Limited | Construction | 2012 |
| Resin's R US UK Ltd | Construction | 2015 |
| Respiratechuk Ltd | Wholesale & retail | 2026 |
| Restore Derbyshire Ltd | Transport & logistics | 2026 |
| Restore Midlands Ltd | Transport & logistics | 2026 |
| Retreat to the Peaks Ltd | Hospitality | 2025 |
| Riccardo Properties Ltd | Real estate | 2023 |
| Richard Lane Holdings Limited | Financial services | 2025 |
| Richard Lane Homes Limited | Construction | 2016 |
| Richard Mundy Building Design Limited | Professional & scientific | 2003 |
| Richard Whittlestone Limited | Arts & recreation | 2010 |
| Right Price Energy Limited | Energy | 2018 |
| Riverfutures Ltd | Professional & scientific | 2015 |
| Riverside Business Park Limited | Construction | 2004 |
| Riverside Crescent (Bakewell) Management Company Limited | Households | 1999 |
| Riverside Crescent Limited | Real estate | 2009 |
| RK Statistics Ltd | Other services | 2009 |
| RL Kinsella's Ltd | Hospitality | 2025 |
| Robin Hood Farm Limited | Hospitality | 2017 |
| Robin Hood Holdings Limited | Hospitality | 2017 |
| Romney Holdings Limited | Professional & scientific | 1995 |
| Rooftops Property Management Ltd | Real estate | 2025 |
| Root & Restore Limited | Professional & scientific | 2026 |
| Rosaria Amore Bridal Limited | Wholesale & retail | 2021 |
| Rothwell Traders Ltd | Wholesale & retail | 2017 |
| Rowsley House Apartments Limited | Real estate | 2025 |
| Rowtor Rocks Ltd | Hospitality | 2026 |
| Royal Oak Court (Chesterfield) Management Company Limited | Households | 2004 |
| RR Motorcycles Ltd | Wholesale & retail | 2004 |
| Rtmd Construction Limited | Construction | 2018 |
| Rubel Business Associates Limited | Real estate | 2001 |
| Ruby Nails Bakewell Ltd | Other services | 2023 |
| Rufford Abbey Investments Limited | Real estate | 2024 |
| Rural Estates Construction Ltd | Construction | 2024 |
| Rural Estates Ltd | Real estate | 2008 |
| Rural Property Ltd | Real estate | 2008 |
| Russell & Dalton Properties Limited | Other services | 2019 |
| Rutland Hotels Limited | Hospitality | 1954 |
| Rutland Mill Management Ltd | Real estate | 2015 |
| Rutland Riverside RTM Company Limited | Households | 2010 |
| Rutlands Limited | Wholesale & retail | 1999 |
| S & G Kent Limited | Other services | 2017 |
| S Gavins Properties Ltd | Real estate | 2020 |
| S L K Consulting Limited | Agriculture & fishing | 1998 |
| S20 the Boundary Limited | Arts & recreation | 2020 |
| Safecrate Removals Ltd. | Other services | 2012 |
| Sage Comms Limited | Information & communication | 2018 |
| Saint Elkas Limited | Health & social care | 2010 |
| Sakushi Limited | Hospitality | 2010 |
| Salt & Pepper Books Limited | Information & communication | 2024 |
| Sam's Social Media Club Ltd | Information & communication | 2021 |
| Sapphire (Bakewell) Limited | Financial services | 2021 |
| Sapphire Tax Consultancy Ltd | Professional & scientific | 2014 |
| Sarah Barlow Financial Solutions Limited | Other services | 2017 |
| Sarem Holdings Ltd | Real estate | 2018 |
| Sauced Here Limited | Wholesale & retail | 2016 |
| Scandibox Saunas Limited | Other services | 2025 |
| Scarlix Ltd | Hospitality | 2021 |
| Scitax Limited | Professional & scientific | 2023 |
| Scorpio Securities Limited | Administrative & support | 1973 |
| Scott Family Projects Ltd | Hospitality | 2024 |
| Scriveton Manor Farm Holdings Limited | Agriculture & fishing | 1948 |