| Castle & Coast Ltd | Administrative & support | 2024 |
| Catering Supplies (Fife) Ltd | Hospitality | 2014 |
| CB Auto Valet Limited | Wholesale & retail | 2014 |
| CC 12488160114 Limited | Wholesale & retail | 2024 |
| Cc's Floral Design Ltd | Wholesale & retail | 2021 |
| CDC Consultancy (Scotland) Ltd | Professional & scientific | 2019 |
| Cdlh Limited | Professional & scientific | 2010 |
| Celtic Tours Ltd | Transport & logistics | 2026 |
| Celtic UK Services Ltd | Transport & logistics | 2026 |
| Centre for Positive Change Ltd | Other services | 2020 |
| CFR Electrical Services Limited | Construction | 2006 |
| CG Construction Management Ltd | Construction | 2025 |
| CG Welding Limited | Manufacturing | 2025 |
| Chalmers Leisure Ltd | Hospitality | 2023 |
| Chameleon Fire & Security Ltd | Administrative & support | 2026 |
| Charagh Limited | Hospitality | 2025 |
| Charles Wood & SON Limited | Professional & scientific | 2012 |
| Charles Wood Law Limited | Financial services | 2022 |
| Charlie Reid Travel Limited | Administrative & support | 2011 |
| Charly's Parlour Ltd | Wholesale & retail | 2009 |
| Chef Tarie Limited | Hospitality | 2024 |
| Cherished Souls Ltd | Health & social care | 2024 |
| Chicken Gyros House Ltd | Hospitality | 2023 |
| Chien-Yuen Ltd | Administrative & support | 2022 |
| Chilli Pipers Ltd | Arts & recreation | 2010 |
| Chilli Pipers Productions Limited | Information & communication | 2014 |
| Chilli Pipers Recordings Limited | Information & communication | 2014 |
| Chris Adamson Property Maintenance Ltd | Manufacturing | 2022 |
| Chris the Plumber Ltd | Construction | 2025 |
| Christian Centre Ministries | Other services | 1989 |
| CHU YI Ltd | Hospitality | 2025 |
| CIA (Kirkcaldy) Limited | Administrative & support | 2009 |
| Ciji Properties Limited | Real estate | 2013 |
| Citro Property Limited | Real estate | 2024 |
| CJC Surfacing Ltd | Construction | 2021 |
| Ckmg-Group Limited | Hospitality | 2018 |
| Clachtoll Beach Campsite Limited | Hospitality | 2019 |
| Clark Wishart Limited | Professional & scientific | 2008 |
| Clarkes Access Ltd | Construction | 2018 |
| Claymore Automotive Design Ltd | Wholesale & retail | 2024 |
| Cleanpilot UK Ltd | Administrative & support | 2026 |
| Clinic P Limited | Health & social care | 2026 |
| CLM Associates (Scotland) Limited | Professional & scientific | 2005 |
| Cloud Vapours Fife Ltd | Wholesale & retail | 2016 |
| Cloudstrand Limited | Information & communication | 2025 |
| CLS Barbers Ltd | Other services | 2022 |
| Clued UP Project | Information & communication | 2008 |
| Cluny Activities Holidays Ltd | Hospitality | 2025 |
| Cluny Activities Ltd | Agriculture & fishing | 2000 |
| CM Painting Solutions Limited | Construction | 2025 |
| CMI Scotland Limited | Construction | 2013 |
| CMS Project Management Ltd | Professional & scientific | 2024 |
| Coal Wynd Developments Limited | Real estate | 1985 |
| Cobanakdy Ltd | Hospitality | 2024 |
| Cokonut Ltd | Wholesale & retail | 2024 |
| COLLECT2 Ltd | Transport & logistics | 2009 |
| Commercial by Lawrie Ltd | Real estate | 2024 |
| Commercial Property (Scotland) Limited | Professional & scientific | 2002 |
| Compassionate & Committed Care Limited | Health & social care | 2022 |
| Complete Care Cleaning Limited | Administrative & support | 2008 |
| Complete Web Solutions Ltd | Information & communication | 2013 |
| Computer Repair Centre Kirkcaldy Ltd | Other services | 2013 |
| Comzconsult Limited | Information & communication | 2004 |
| Concept Fife Ltd | Real estate | 2023 |
| Connolly Power Systems Ltd | Construction | 2026 |
| Connor Reed Stone Masonry Ltd | Construction | 2024 |
| Conrad S Construction Ltd | Construction | 2025 |
| Constant Visual Ltd | Information & communication | 2025 |
| Contentment Capital Limited | Financial services | 2024 |
| Contentment Properties Limited | Real estate | 2024 |
| Contract Solutions and Advisory Services Ltd | Professional & scientific | 2025 |
| Conveyancing Services Scotland Limited | Administrative & support | 2005 |
| Cool Balloon Limited | Health & social care | 2015 |
| Coolforce Refrigeration & Air Conditioning Ltd | Construction | 2015 |
| Cooper Gold Forensic Consultancy Limited | Professional & scientific | 2014 |
| Cormie Cullen Limited | Construction | 2023 |
| Countryside Services Fife Limited | Administrative & support | 2023 |
| County Lets (Scotland) Limited | Real estate | 2025 |
| Coxson Decorators Limited | Professional & scientific | 2015 |
| Crabbie Capital Limited | Professional & scientific | 2020 |
| Craft Properties Fife Ltd | Real estate | 2021 |
| Craftbuilt Scotland Ltd | Construction | 2026 |
| Craig Donnelly Golf Ltd. | Arts & recreation | 2001 |
| Craig Mcnab Ltd | Administrative & support | 2006 |
| Craigfoot Properties Ltd | Real estate | 2025 |
| Craignairn Car World Limited | Wholesale & retail | 1986 |
| Craignairn Cars Limited | Wholesale & retail | 1986 |
| Creative Bloom Social Ltd | Professional & scientific | 2025 |
| Crieff Fish Bar Ltd | Hospitality | 2020 |
| Crkj Ltd | Professional & scientific | 2018 |
| Crosbie Matthew Funeral Directors Ltd. | Other services | 1965 |
| Crown PUB Holdings Ltd | Real estate | 2025 |
| Cruickshank Conglomerates Ltd. | Wholesale & retail | 2003 |
| Cruickshank Glaziers Ltd. | Construction | 2007 |
| CRZ Access Ltd | Construction | 2026 |
| CS Services Property Logistics Ltd | Households | 2023 |
| CS Steel Limited | Construction | 2018 |
| CT Offshore Ltd | Professional & scientific | 2022 |
| CTF Properties Limited | Real estate | 2008 |
| Cullaloe Holdings Ltd | Real estate | 2025 |