| NLK Consultancy Limited | Professional & scientific | 2020 |
| NO. 22 Hair Boutique Limited | Other services | 2019 |
| Noize Events Limited | Arts & recreation | 2011 |
| Northcombe Farm Limited | Agriculture & fishing | 2018 |
| Northcott Residents Management Company Limited | Real estate | 2011 |
| Northman Nutrition Ltd | Manufacturing | 2015 |
| NOT SO Mini Ltd | Wholesale & retail | 2020 |
| Novaspark Limited | Information & communication | 2019 |
| Nrjg Investments Ltd | Real estate | 2022 |
| NU View Homes LLP | | 2021 |
| Nurture Enterprises Ltd | Agriculture & fishing | 2019 |
| NVE Renewables Ltd | Administrative & support | 2024 |
| Oaklands Farm Cafe Ltd | Hospitality | 2025 |
| Ocean Teak Limited | Wholesale & retail | 2017 |
| OK CBD Limited | Extraterritorial | 2018 |
| One Clowns Dream Ltd | Real estate | 2026 |
| Optimus Psychology Limited | Education | 2017 |
| Orange Hill Limited | Health & social care | 2013 |
| Orchards (Buckerell) Management Limited | Households | 1994 |
| Orion Developments (SW) Ltd | Construction | 2025 |
| Otter Brewery Bars & Catering Limited | Hospitality | 2004 |
| Otter Brewery Limited | Manufacturing | 1998 |
| Otter Distillery Limited | Manufacturing | 2018 |
| Otter Vale Motor Services Ltd | Wholesale & retail | 2020 |
| Otter Valley Dairy Ltd | Manufacturing | 2010 |
| Otter Valley EAR Care Limited | Health & social care | 2026 |
| Otter Valley Poultry Limited | Manufacturing | 2015 |
| Outdoorvia Holidays Limited | Administrative & support | 2022 |
| Outdoorvia Limited | Other services | 2018 |
| Over the Toppers Ltd | Wholesale & retail | 2024 |
| Overbright Ltd | Administrative & support | 2020 |
| Overclean Limited | Other services | 1984 |
| Overloading Limited | Real estate | 2014 |
| P a B Dental Care Limited | Health & social care | 2014 |
| PAK Aerials Limited | Construction | 2002 |
| Pangaea Property Ltd | Real estate | 2015 |
| Pangaea Television Production Co. Ltd | Information & communication | 2003 |
| Parental Minds C.I.C. | Health & social care | 2020 |
| Parkside Service Company Limited | Water & waste | 1982 |
| PARTNERS4PROPERTIES Ltd | Real estate | 2020 |
| Paul Kershaw Business Consultant Limited | Financial services | 2018 |
| Paul Prettejohn Machinery Limited | Other services | 2019 |
| Paulos Circus Ltd | Arts & recreation | 2026 |
| Payne’S Property & Investment Ltd | Real estate | 2025 |
| PCR Homes Ltd | Construction | 2020 |
| PDK Nails Ltd | Other services | 2026 |
| Pebble Stone Property Ltd | Construction | 2023 |
| Penrose Ecological Ltd | Professional & scientific | 2024 |
| Penstar Property Ltd | Real estate | 2018 |
| Pentree Limited | Real estate | 2015 |
| Perry Engineering Services Limited | Manufacturing | 2012 |
| Perry Engineering Systems Limited | Manufacturing | 2024 |
| Perry of Oakley (Holdings) Limited | Financial services | 2012 |
| Perry of Oakley Limited | Manufacturing | 1955 |
| Pete Broom Limited | Wholesale & retail | 2014 |
| Phillips 91 Limited | Hospitality | 2021 |
| Phoenix Development (Devon) Limited | Construction | 2016 |
| Phoenix Development (Exeter) Limited | Construction | 2016 |
| Phoenix Homes SW Ltd | Real estate | 2026 |
| Pier Terrace Holdings Limited | Households | 1960 |
| Pilgrims Holdings Ltd | Real estate | 2017 |
| PIN ADS Limited | Professional & scientific | 2021 |
| Pink Entertainment Ltd | Administrative & support | 2025 |
| Pisces Fishing Ltd | Agriculture & fishing | 2012 |
| Pixelrun UK Ltd | Other services | 2026 |
| PK Valeting Limited | Wholesale & retail | 2014 |
| Planes TV. COM Limited | Information & communication | 2008 |
| Play Leisure Ltd | Arts & recreation | 2019 |
| Pleydell Technology Consulting Limited | Professional & scientific | 2008 |
| PN Dimitrov Ltd | Health & social care | 2012 |
| PNR Services Limited | Other services | 2023 |
| Polly Brook Cottages Management Limited | Households | 2009 |
| Popov Ltd | Health & social care | 2012 |
| Poppy & Co Wholesale Ltd | Wholesale & retail | 2025 |
| Portfolio Design Consultancy Limited | Real estate | 1998 |
| Positive Balance Coaching Limited | Other services | 2019 |
| Positive Proof Ltd | Wholesale & retail | 2017 |
| Premier GEL Designs Ltd | Professional & scientific | 2020 |
| Prestige Healthcare Services Limited | Health & social care | 2017 |
| Prime Build Projects Ltd | Construction | 2019 |
| Pring Properties Limited | Real estate | 2020 |
| Prism Consulting Engineers Ltd | Professional & scientific | 2020 |
| Project Cosmic | Information & communication | 1997 |
| Project Sparkes Ltd | Arts & recreation | 2025 |
| Property & Driveway Transformations Limited | Administrative & support | 2015 |
| Protecteon-Plus Ltd | Extraterritorial | 2015 |
| Proteum Limited | Manufacturing | 2008 |
| PSM Premises Ltd | Real estate | 2021 |
| Publishing Matters Limited | Information & communication | 2005 |
| Pure British Limited | Professional & scientific | 2007 |
| Purple Patch Digital Ltd | Manufacturing | 2013 |
| Quality Corner Ltd | Wholesale & retail | 2006 |
| Quantum Cctv & Networks Limited | Administrative & support | 2024 |
| QUICKVAPES4U Ltd | Wholesale & retail | 2023 |
| R B Subsea Contracting Limited | Professional & scientific | 2012 |
| R G Bowditch Limited | Agriculture & fishing | 2007 |
| R J Cook Consulting Ltd | Information & communication | 2024 |
| R. Branner & Co Limited | Professional & scientific | 2020 |
| R.T. Delve Limited | Construction | 1980 |
| Radoy Ekov Ltd | Health & social care | 2012 |