| Perth Electrical Ltd | Construction | 2013 |
| Perth Equine Vets Ltd | Professional & scientific | 2020 |
| Perth Festival of the Arts Limited | Arts & recreation | 1981 |
| Perth First AID Training Ltd | Health & social care | 2022 |
| Perth Fitness Studios Ltd | Administrative & support | 2023 |
| Perth Garage Ltd | Wholesale & retail | 2023 |
| Perth Highland Games (1997) Limited | Other services | 1997 |
| Perth Homecare Limited | Public administration | 2025 |
| Perth Homecare Services Ltd | Health & social care | 2008 |
| Perth Hunt Club Limited | Professional & scientific | 2023 |
| Perth Kitchen Centre Limited | Wholesale & retail | 1975 |
| Perth Leadership Academy Ltd | Professional & scientific | 2025 |
| Perth Luxury Apartments Ltd | Real estate | 2023 |
| Perth Meeting Room Limited | Administrative & support | 2017 |
| Perth Mirror Doors Limited | Manufacturing | 2007 |
| Perth Pest Control Ltd. | Other services | 2016 |
| Perth Photo LAB Ltd | Professional & scientific | 2021 |
| Perth Physio Clinic Limited | Health & social care | 2015 |
| Perth Precast Limited | Manufacturing | 1999 |
| Perth Private Hire Limited | Transport & logistics | 2017 |
| Perth Properties Holdings Limited | Real estate | 2024 |
| Perth Properties Limited | Real estate | 2018 |
| Perth Property Group Ltd | Real estate | 2024 |
| Perth Racecourse Limited | Hospitality | 2022 |
| Perth Radio Taxis (Trading) Ltd | Transport & logistics | 2024 |
| Perth Radio Taxis Limited | Transport & logistics | 2011 |
| Perth Scaffolding Ltd | Construction | 2019 |
| Perth Self Store Group Limited | Transport & logistics | 2026 |
| Perth Services Ltd | Construction | 2025 |
| Perth Stove Centre Ltd | Wholesale & retail | 2008 |
| Perth Trophy Shop Ltd | Wholesale & retail | 2017 |
| Perth Water SKI Club Limited | Arts & recreation | 2004 |
| Perth's Best Limited | Hospitality | 2020 |
| Perth. Wheelie Clean Ltd | Administrative & support | 2026 |
| PERTH10K2019 Ltd | Arts & recreation | 2019 |
| Perthformance CIC | Education | 2021 |
| Perthfumery Ltd | Wholesale & retail | 2025 |
| Perthshire Chamber of Commerce. | Other services | 1941 |
| Perthshire Cleaning Ltd | Administrative & support | 2021 |
| Perthshire Flooring Limited | Wholesale & retail | 2008 |
| Perthshire Food Safety Ltd | Hospitality | 2011 |
| Perthshire Forestry Services Ltd | Agriculture & fishing | 2024 |
| Perthshire GAS and Heating Services Ltd | Construction | 2025 |
| Perthshire Glazing Co. Limited | Transport & logistics | 1978 |
| Perthshire Joinery Ltd | Manufacturing | 2022 |
| Perthshire Parking Limited | Administrative & support | 2023 |
| Perthshire PAT Services Ltd | Professional & scientific | 2025 |
| Perthshire Property Maintenance Ltd | Other services | 2019 |
| Perthshire Realistic Properties Limited | Real estate | 2020 |
| Perthshire Sales Management Ltd | Construction | 2018 |
| Perthshire Tree Planting Ltd | Agriculture & fishing | 2022 |
| Perthshire Visitor Centre Limited | Wholesale & retail | 1986 |
| Perthshire Window Films Limited | Construction | 2019 |
| Perthshire Women's AID | Hospitality | 2009 |
| Perthside Ltd | Real estate | 2016 |
| Perthtakeaway Ltd | Hospitality | 2026 |
| Peter Halley (Transport) Limited | Transport & logistics | 1961 |
| Peter Latimer Golf Professional Ltd | Arts & recreation | 2021 |
| Peter Mcarthur Limited | Agriculture & fishing | 2024 |
| Pettigrew Lettings Limited | Real estate | 2024 |
| Pettigrew Recruitment Group Limited | Administrative & support | 2019 |
| Petulant Wines LLP | | 2026 |
| PF3M Consultants Limited | Professional & scientific | 2015 |
| PGH Global Ltd | Financial services | 2018 |
| PH1 Developments Ltd | Real estate | 2023 |
| Philip Curran Music Ltd | Information & communication | 2019 |
| Philip Politi Hairdressing Ltd. | Other services | 2006 |
| Phoenix Healthcare Consultancy Ltd | Professional & scientific | 2024 |
| Phoenix Virtual Solutions Ltd | Administrative & support | 2022 |
| Photon Networks Ltd | Construction | 2022 |
| PHX Water Ltd | Water & waste | 2018 |
| Picardie Limited | Real estate | 1987 |
| Pictstonhill Farm Stables Limited | Agriculture & fishing | 2019 |
| Pike's Pond Limited | Extraterritorial | 2012 |
| Pimlott Consulting Ltd | Administrative & support | 2013 |
| Pineway Contracts Perth Limited | Construction | 2022 |
| Pirate Boats Ltd | Transport & logistics | 2017 |
| Pirie and Clark Limited | Real estate | 2001 |
| Pitcrocknie Ltd | Hospitality | 2016 |
| Pitlochry Garage Limited | Wholesale & retail | 2016 |
| Pitlochry Residential Limited | Real estate | 2022 |
| Pitmeadow Farm Limited | Agriculture & fishing | 2021 |
| Pitskelly Farmers | | 1988 |
| PK Social Care Service Ltd | Health & social care | 2026 |
| Pkavs Trading Company Limited | Households | 2002 |
| PKC Trade Kitchens Ltd. | Wholesale & retail | 2010 |
| PKH Inns Limited | Hospitality | 2006 |
| PKS & Joinery Services Ltd | Construction | 2017 |
| Planet Friendly Ltd | Extraterritorial | 2024 |
| Planning Objections Scotland Ltd | Professional & scientific | 2024 |
| Plant Glazing Limited | Administrative & support | 1977 |
| Platter and POP Ltd | Hospitality | 2019 |
| Plook Ltd | Real estate | 2018 |
| PLS Rural Limited | Professional & scientific | 2017 |
| Plus EV Ltd. | Information & communication | 2013 |
| Plus Perth and Kinross | Other services | 2009 |
| Plutarch Services Limited | Construction | 2025 |
| Plye Design International Limited | Administrative & support | 2000 |
| PM Weighers Ltd | Wholesale & retail | 2026 |
| PMM Developments Limited | Construction | 2011 |