| Protalent Sports Management | | 2002 |
| Protea Recruitment Ltd | Administrative & support | 2020 |
| Protec Power Overseas LP | | 2016 |
| Protech Upskill Academy Ltd | Education | 2026 |
| Protect What Matters Ltd | Financial services | 2018 |
| Protected Customer Ltd | Information & communication | 2025 |
| Protecting Technology LP | | 2016 |
| Protection of Animal Health Co. LP | | 2016 |
| Protego Watches, LP | | 2023 |
| Protein Balance Limited | Wholesale & retail | 2026 |
| Protein Beans Ltd | Wholesale & retail | 2025 |
| Proteinchai Ltd | Manufacturing | 2025 |
| Protektia Limited | Wholesale & retail | 2021 |
| Proteus Tidal (Scotland) Limited | Manufacturing | 2023 |
| Protex (Scotland) Limited | Transport & logistics | 2004 |
| Protex Mania LP | | 2016 |
| Protex World LP | | 2015 |
| Protey Group LP | | 2017 |
| Prothea Technologies Limited | Professional & scientific | 2021 |
| Protium Cromarty Limited | Professional & scientific | 2022 |
| Protium Speyside Limited | Professional & scientific | 2023 |
| Proton Engineering CM LP | | 2016 |
| Proton Power Limited | Manufacturing | 2017 |
| Proton Rentals Ltd | Real estate | 2025 |
| Proton Sports Management Ltd | Arts & recreation | 2025 |
| Protrade Associates L.P. | | 2012 |
| Proud Holiday Alliance LP | | 2012 |
| Proud Properties (Aberdeen) Limited | Real estate | 2019 |
| Proud Technology L.P. | | 2012 |
| Provans Alliance LP | | 2017 |
| Provenance Investments Scotland (GP) LLP | | 2015 |
| Provenance Investments Scotland LP | | 2015 |
| Provence Partners | | 2002 |
| Provender Restaurants Ltd | Real estate | 2022 |
| Provenire Limited | Professional & scientific | 2018 |
| Proveno L.P. | | 2016 |
| Proventure & Partners Scottish Limited Partnership | | 1999 |
| Proverb Pro Ltd | Real estate | 2023 |
| Providence Equity Partners Viii (Scotland) L.P. | | 2018 |
| Providence Equity Partners Viii (Scotland) LLP | | 2018 |
| Provisio Residential (NO.1) LLP | | 2014 |
| Provisio Residential (NO.2) LLP | | 2016 |
| Provn Talent Solutions Ltd | Administrative & support | 2023 |
| Prox Group LP | | 2016 |
| Proxi Development LP | | 2016 |
| Proxicom L.P. | | 2016 |
| Proximity Interpreting Ltd | Professional & scientific | 2025 |
| Prozymi Biolabs Ltd | Professional & scientific | 2021 |
| PRR Property Limited | Real estate | 2021 |
| PRS Energy Solutions Limited | Professional & scientific | 2016 |
| Prs-Uk Ltd | Hospitality | 2022 |
| Prspctv Designs Ltd | Professional & scientific | 2024 |
| PRT Logistics Ltd | Transport & logistics | 2025 |
| Prudec Ltd. | Financial services | 2012 |
| Prudent Planning (Scotland) Limited | Financial services | 2014 |
| Prudential Greenfield SLP Dissolved LP | | 2014 |
| Prudential Holdings Limited | Financial services | 2000 |
| PRW Limited | Hospitality | 2021 |
| PRX Invest Ltd | Extraterritorial | 2024 |
| Pryde & Co. Properties Ltd | Real estate | 2024 |
| Pryde Driver Training Ltd | Education | 2025 |
| Pryde Holdings Ltd | Financial services | 2025 |
| Pryde Property Group Ltd | Real estate | 2021 |
| Prydis Wealth (Scotland) Limited | Financial services | 2020 |
| Pryme Heritage Limited | Real estate | 2025 |
| Prytec Limited | Manufacturing | 1999 |
| PS Construction (Scotland) Limited | Construction | 2015 |
| PS Innovation LP | | 2017 |
| PS Money LP | | 2013 |
| PS Partnership (Scotland) Limited | Health & social care | 2020 |
| PS Print Ltd | Professional & scientific | 2021 |
| PS Retial Limited | Wholesale & retail | 2024 |
| PS22KM Limited | Information & communication | 2018 |
| PSB Wholesale Ltd | Wholesale & retail | 2024 |
| PSC III Carry GP Limited | Financial services | 2016 |
| PSC III Carry L.P. | | 2016 |
| PSF Capital (Cbirbp) GP Limited | Administrative & support | 2023 |
| PSF Capital (Cbirbp) LP | | 2023 |
| PSH (Scotland) GP Limited | Administrative & support | 2017 |
| Pslt Property Ltd | Real estate | 2025 |
| PSM Universal Limited | Wholesale & retail | 2019 |
| Psocs Ltd | Construction | 2025 |
| PSR Consulting(Uk) Limited | Information & communication | 2018 |
| PST Commercial LP | | 2014 |
| Psychange Group Limited | Professional & scientific | 2024 |
| Psyche Therapy Centre Limited | Health & social care | 2021 |
| Psychology AI Ltd | Information & communication | 2025 |
| Psychology Service Scotland Limited | Health & social care | 2015 |
| PT Actuarial Limited | Financial services | 2014 |
| PT Nail & Beauty Limited | Other services | 2023 |
| PT Pubs Ltd | Hospitality | 2019 |
| Ptarmigan Shipping Limited | Transport & logistics | 2021 |
| PTB ALL Trades Solutions Limited | Construction | 2015 |
| PTC Logistics LP | | 2013 |
| Ptconnect Ltd | Arts & recreation | 2022 |
| PTD Today Ltd | Financial services | 2017 |
| PTI Catering Services Ltd | Hospitality | 2025 |
| PTM Investments Limited | Transport & logistics | 2003 |
| Ptmsa Ltd | Manufacturing | 2021 |
| PTN Joinery and Building Limited | Construction | 2017 |