| Clan Anderson Ltd | Hospitality | 2023 |
| Clare M Hair and Beauty Limited | Other services | 2008 |
| Clark Technical Services Ltd | Professional & scientific | 2009 |
| Clarke Coaching Ltd | Education | 2021 |
| Claromech Limited | Manufacturing | 2007 |
| Clathy Consulting Limited | Information & communication | 2021 |
| Claymore Crossfit Training Limited | Arts & recreation | 2015 |
| Clearpath Fire Compliance Ltd | Professional & scientific | 2025 |
| CLM Healthcare Ltd | Wholesale & retail | 2022 |
| Clock in Software Ltd | Information & communication | 2026 |
| Cloudy Spheres Ltd | Information & communication | 2023 |
| Cloudy Training CIC | Education | 2025 |
| Clover Property Rentals Ltd | Real estate | 2023 |
| Cluanie Limited | Agriculture & fishing | 2015 |
| Club 300 Limited | Arts & recreation | 2020 |
| Clyde Windfarm (Scotland) Limited | Energy | 2005 |
| Clypra Labs Ltd | Professional & scientific | 2025 |
| CNK (Coll) Limited | Energy | 2014 |
| Cnoclee Ltd | Professional & scientific | 2006 |
| Coach RAB Limited | Education | 2023 |
| Cocoa Mountain International Ltd | Manufacturing | 2018 |
| Cocoa Mountain Ltd. | Manufacturing | 2005 |
| Cocobean Films Limited | Information & communication | 2011 |
| COD Property Ltd | Real estate | 2014 |
| Coffee at the Rose House Limited | Hospitality | 2017 |
| Cogent Connective Limited | Information & communication | 2023 |
| Coiltie Hydro Limited | Energy | 2011 |
| Coire Glas Hydro Pumped Storage Limited | Energy | 2017 |
| Colco Plumbing & Heating Limited | Construction | 2017 |
| Coldstream Developments Limited | Hospitality | 2018 |
| Colligan Consultancy Limited | Professional & scientific | 2024 |
| Comparemypension.Com Limited | Information & communication | 2017 |
| Compass Perth Ltd | Hospitality | 2019 |
| Compassionate Souls Ltd | Health & social care | 2024 |
| Compliancemasters LLP | | 2004 |
| Computer Cable Networks Limited | Information & communication | 2004 |
| Comrie Investments Limited | Agriculture & fishing | 2009 |
| Coniungere Holdings Limited | Hospitality | 2022 |
| Connectpro Digital Ltd | Professional & scientific | 2025 |
| Connectus Scotland Limited | Information & communication | 2010 |
| Conplexio Ltd | Information & communication | 2017 |
| Consciously Green Consulting Ltd | Professional & scientific | 2025 |
| Control IT Solutions Ltd | Information & communication | 2015 |
| Copperfields Hairdressing and Beauty Limited | Other services | 2012 |
| Corryard Hill Primary Ltd | Construction | 2016 |
| Corryard Holdings Ltd | Financial services | 2014 |
| Corryard Kenmore Ltd | Construction | 2016 |
| Cosynergy Ltd | Wholesale & retail | 2025 |
| Cotton Agencies Ltd | Wholesale & retail | 2023 |
| Coulags Hydro Ltd | Energy | 2014 |
| Coulin Estate Limited | Extraterritorial | 2026 |
| Counter Coffee Limited | Wholesale & retail | 2025 |
| County News Shop Ltd | Wholesale & retail | 2022 |
| County Place News Limited | Wholesale & retail | 2018 |
| County Property Searches Limited | Information & communication | 2014 |
| Covenant Commercial Consulting Ltd | Professional & scientific | 2025 |
| Cowboy Contracts Ltd | Agriculture & fishing | 2024 |
| Cozber Holdings Ltd | Hospitality | 2023 |
| Cozber Ltd | Hospitality | 2019 |
| Cragie Shop Ltd | Wholesale & retail | 2021 |
| Craig Mcdowall Architectural Services Ltd | Professional & scientific | 2012 |
| Craig Nicol FRC Limited | Construction | 2024 |
| Craig Whyte Plumbing & Heating Services Ltd | Construction | 2024 |
| Craigdon Mountain Sports (Perth) Ltd. | Wholesale & retail | 2014 |
| Craigend Farm Ltd. | Real estate | 2013 |
| Craiglea Properties Limited | Real estate | 2014 |
| Craigmhor Investments Limited | Professional & scientific | 2014 |
| Craigmhor Outdoors Limited | Wholesale & retail | 2014 |
| Craigrossie Printing Ltd | Manufacturing | 2024 |
| Craik Ltd | Professional & scientific | 2018 |
| Crawford Meckphen Farmers | | 1987 |
| Crawfordsfarm Ltd | Information & communication | 2021 |
| Creative Catalyst Scotland CIC | Education | 2020 |
| Creative Upholstery Limited | Other services | 2017 |
| Cresco Capital Services Limited | Professional & scientific | 2019 |
| Crichton Donaldson Auto Repairs Limited | Wholesale & retail | 2011 |
| Crido's Limited | Hospitality | 2017 |
| Crieff Glamping Limited | Hospitality | 2024 |
| Crieff Road Newsagent Ltd | Wholesale & retail | 2017 |
| Criticiseai Limited | Information & communication | 2023 |
| Crop Solutions Limited | Agriculture & fishing | 2007 |
| Crop Solutions Machinery Ltd | Wholesale & retail | 2022 |
| Cross Step Ltd | Real estate | 2021 |
| Cross Street Developments Ltd | Hospitality | 2017 |
| Crossroads (Perth & Kinross) Care Attendant Scheme | Health & social care | 1998 |
| Crown Avenue Consultancy Limited | Professional & scientific | 2024 |
| Croy Cunningham (Farms) Limited | Agriculture & fishing | 1962 |
| Cruinn Limited | Other services | 2019 |
| CRX Associates Limited | Professional & scientific | 2012 |
| CSD Electrical Services Ltd | Construction | 2017 |
| CSJ (Scotland) Limited | Construction | 2015 |
| CSR Joinery & Landscaping Limited | Manufacturing | 2024 |
| Culfargie Estates, Limited | Agriculture & fishing | 1924 |
| Cullach Brewing Ltd | Manufacturing | 2018 |
| Cullochgold Services Limited | Real estate | 1997 |
| Culture Perth and Kinross Limited | Arts & recreation | 2015 |
| Culture Perth and Kinross Trading Limited | Wholesale & retail | 2016 |
| Curtis Cupar Holdings Limited | Real estate | 2007 |
| Curtis Motors Cupar Limited | Wholesale & retail | 2005 |
| Curtis Motors Ltd | Wholesale & retail | 2013 |