| Plymouth Cosmetic Ltd | Other services | 2022 |
| Plymouth Cricket Club (Casc) Limited | Arts & recreation | 2019 |
| Plymouth Cricket Club Limited | Arts & recreation | 2011 |
| Plymouth Damp Proofing Ltd | Extraterritorial | 2019 |
| Plymouth Defence Solicitors Limited | Professional & scientific | 2016 |
| Plymouth Delivery Services Ltd | Hospitality | 2022 |
| Plymouth Dermatology Limited | Health & social care | 2019 |
| Plymouth Design Forum Community Interest Company | Professional & scientific | 2019 |
| Plymouth Discount Golf Ltd | Wholesale & retail | 2025 |
| Plymouth Drain Services Ltd | Water & waste | 2023 |
| Plymouth Embroidery Studio Ltd | Wholesale & retail | 2021 |
| Plymouth Engine & Gearbox Company Limited | Manufacturing | 1981 |
| Plymouth Estate Management Limited | Real estate | 2012 |
| Plymouth Estates Limited | Real estate | 2009 |
| Plymouth Events Limited | Arts & recreation | 2025 |
| Plymouth Fasteners Ltd | Wholesale & retail | 2024 |
| Plymouth Fishing and Seafood Association CIC | Professional & scientific | 2022 |
| Plymouth Food & Wine Limited | Wholesale & retail | 2008 |
| Plymouth Food Security Collective CIC | Hospitality | 2024 |
| Plymouth Fried Chicken Ltd | Hospitality | 2026 |
| Plymouth Furniture Reuse Project Ltd | Extraterritorial | 2010 |
| Plymouth Garage Services Ltd | Wholesale & retail | 2020 |
| Plymouth GAS Ltd | Manufacturing | 2016 |
| Plymouth GAS Services Ltd | Construction | 2022 |
| Plymouth Ginbox Ltd | Hospitality | 2019 |
| Plymouth Golden Blades Barbers Ltd | Other services | 2025 |
| Plymouth Golf Centre Limited | Arts & recreation | 2004 |
| Plymouth Grill House Limited | Hospitality | 2022 |
| Plymouth Group Investments Ltd | Construction | 2025 |
| Plymouth Halal Shop Ltd | Wholesale & retail | 2023 |
| Plymouth Healthcare Limited | Health & social care | 2016 |
| Plymouth Hearing Centre Ltd. | Professional & scientific | 2011 |
| Plymouth HOE C.P. Ltd | Real estate | 2014 |
| Plymouth Home Improvements Group Ltd | Construction | 2025 |
| Plymouth Home Improvements Ltd | Construction | 2014 |
| Plymouth Home Surveys Ltd | Professional & scientific | 2025 |
| Plymouth HOMES4LET C.I.C. | Real estate | 2008 |
| Plymouth Hope Limited | Education | 2025 |
| Plymouth Imports Ltd | Wholesale & retail | 2016 |
| Plymouth INS. Brokers Limited | Financial services | 2012 |
| Plymouth Investment Partnerships Limited | Real estate | 1987 |
| Plymouth Joinery Limited | Manufacturing | 2014 |
| Plymouth Jollof Kitchen Community Interest Company | Hospitality | 2022 |
| Plymouth Kebab House Ltd | Hospitality | 2026 |
| Plymouth Land Limited | Other services | 2000 |
| Plymouth Landmark Limited | Hospitality | 2026 |
| Plymouth Landscapes Ltd | Administrative & support | 2024 |
| Plymouth Law Society | Professional & scientific | 1871 |
| Plymouth Leander Swimming Association Limited | Arts & recreation | 2012 |
| Plymouth Learning Partnership CIC | Education | 2011 |
| Plymouth Letting Agency Limited | Real estate | 2007 |
| Plymouth Letting and Estate Agents Limited | Real estate | 2014 |
| Plymouth Lettings Ltd | Real estate | 2025 |
| Plymouth Local Mini Market Ltd | Wholesale & retail | 2021 |
| Plymouth Loft Conversion Specialists Ltd | Construction | 2023 |
| Plymouth MAN for ALL Seasons Limited | Administrative & support | 2019 |
| Plymouth Man's Barber Ltd | Other services | 2024 |
| Plymouth Manufacturing Limited | Extraterritorial | 2014 |
| Plymouth Marine Centre Limited | Extraterritorial | 2006 |
| Plymouth Marine Electronics Limited | Administrative & support | 1995 |
| Plymouth Marine Engineering Limited | Professional & scientific | 2021 |
| Plymouth Marine Laboratory | Professional & scientific | 2001 |
| Plymouth Marine Limited | Real estate | 2003 |
| Plymouth Marine Plant Hire Ltd | Construction | 2025 |
| Plymouth Medical Centre | Professional & scientific | 1965 |
| Plymouth Menopause Network CIC | Education | 2024 |
| Plymouth Mental Health Recovery and Empowerment Group CIC | Health & social care | 2023 |
| Plymouth Miniature Steam | Arts & recreation | 1997 |
| Plymouth Mobiles Ltd | Wholesale & retail | 2025 |
| Plymouth Motor a Ltd | Wholesale & retail | 2022 |
| Plymouth Motor Club Limited | Other services | 1978 |
| Plymouth Motors 1 Ltd | Wholesale & retail | 2020 |
| Plymouth Motors Ltd | Wholesale & retail | 2019 |
| Plymouth Music CIC | Education | 2024 |
| Plymouth Music Zone Limited | Education | 2003 |
| Plymouth Networks Limited | Extraterritorial | 2008 |
| Plymouth Neurophysio Limited | Health & social care | 2014 |
| Plymouth Nightclub Ltd | Hospitality | 2025 |
| Plymouth Nightlife Ltd | Hospitality | 2024 |
| Plymouth Parent Carer Voice Community Interest Company | Information & communication | 2018 |
| Plymouth Parkour CIC | Education | 2020 |
| Plymouth Parkway Football Club Ltd | Hospitality | 2019 |
| Plymouth Pathology Services LLP | | 2011 |
| Plymouth Payroll Services Limited | Professional & scientific | 2019 |
| Plymouth Performance Gym Ltd | Arts & recreation | 2011 |
| Plymouth Performing Arts Academy Limited | Arts & recreation | 2026 |
| Plymouth Phone Recovery & Accessories Ltd | Wholesale & retail | 2024 |
| Plymouth Photo Booth Hire Ltd | Manufacturing | 2023 |
| Plymouth PIE Club Community Interest Company | Manufacturing | 2020 |
| Plymouth Pilots Limited | Manufacturing | 2013 |
| Plymouth Podiatry Ltd | Health & social care | 2020 |
| Plymouth Pride CIC | Arts & recreation | 2022 |
| Plymouth Private Practice Limited | Health & social care | 2026 |
| Plymouth Private Tutors Ltd | Education | 2022 |
| Plymouth Pro Roofing Limited | Construction | 2025 |
| Plymouth Professional Offices Limited | Real estate | 1959 |
| Plymouth Property and Building Maintenance Limited | Construction | 2025 |
| Plymouth Property and Property Maintenance Limited | Construction | 2025 |
| Plymouth Property Investments Limited | Real estate | 2024 |
| Plymouth Property Lettings Limited | Real estate | 2010 |