| Cadham Digital Services Ltd | Information & communication | 2025 |
| Cadham Pharmacy Limited | Health & social care | 2012 |
| Cafe Presko Limited | Hospitality | 2016 |
| Caledonian Computer Solutions Limited | Professional & scientific | 2002 |
| Callum Walker Interiors Limited | Wholesale & retail | 1987 |
| Camvista Global Limited | Information & communication | 2006 |
| Candice Jane Academy Ltd | Professional & scientific | 2024 |
| Canning Coaching Ltd | Arts & recreation | 2022 |
| Caravanstay Ltd | Hospitality | 2026 |
| Carnaby & Co Accountancy Limited | Professional & scientific | 2008 |
| Carriston Farming Limited | Agriculture & fishing | 2019 |
| Castle-Smith Consultants Ltd | Professional & scientific | 2018 |
| CB Facility Services Limited | Professional & scientific | 2024 |
| CB Web DEV Ltd | Information & communication | 2019 |
| CBB Facilities Services Ltd | Professional & scientific | 2021 |
| CBG Financial Solutions Limited | Financial services | 2010 |
| Cchall Property Ltd | Real estate | 2025 |
| CD Body Repair Ltd | Wholesale & retail | 2025 |
| CD Industrial Roofing and Cladding Limited | Construction | 2020 |
| CDB79 Ltd | Other services | 2019 |
| Central Pallets (Scotland) Limited | Manufacturing | 1998 |
| Central Removals Ltd | Transport & logistics | 2023 |
| Centre Point Scotland Ltd. | Construction | 2006 |
| Certworks Ltd | Professional & scientific | 2023 |
| CF Facilities Ltd | Construction | 2019 |
| Cgbr Ltd | Hospitality | 2023 |
| CGS Agritech Ltd | Professional & scientific | 2025 |
| Chapman Lifting Services Limited | Construction | 2023 |
| Chapo Fightgear Ltd | Wholesale & retail | 2026 |
| Charlotte Square Advisors Ltd | Financial services | 2025 |
| Chauffeur Cars CCS Ltd | Administrative & support | 2025 |
| Chick Haus Ltd | Hospitality | 2025 |
| Children's Medical Awards Ltd | Wholesale & retail | 2026 |
| Chippy World Ltd | Hospitality | 2025 |
| Chris Hollins Ltd | Real estate | 2020 |
| Christie Robertson Properties Ltd | Real estate | 2025 |
| Cine Artist Ltd | Information & communication | 2014 |
| Cinema Snacks Ltd | Wholesale & retail | 2010 |
| Cireco (Scotland) LLP | | 2013 |
| Citizens Advice and Rights Fife Limited | Other services | 1997 |
| City Chic Developments Ltd | Real estate | 2014 |
| City Structures Building Engineering Limited | Extraterritorial | 2024 |
| Cjgibsonproperty Ltd | Real estate | 2026 |
| CJR Central Limited | Administrative & support | 2018 |
| CKI Properties Ltd | Real estate | 2024 |
| Clark Heating and Plumbing Services Ltd | Construction | 2017 |
| Cleaning Services Fife Ltd | Administrative & support | 2023 |
| Clear Audio Systems Ltd | Manufacturing | 1993 |
| Clear-View Fife Limited | Administrative & support | 2007 |
| Clear-View Scotland Limited | Administrative & support | 2024 |
| Clearmur Limited | Other services | 2018 |
| Clement Decorators Limited | Construction | 2022 |
| Climatic Services Limited | Manufacturing | 1986 |
| CM Rope Access & Painting Limited | Construction | 2025 |
| CM Secretarial Services Ltd | Administrative & support | 2025 |
| CMJ Commercial Properties Limited | Real estate | 2025 |
| Cmorrison Electrical Ltd | Construction | 2025 |
| Coast to Coast Disabled Services Ltd | Construction | 2005 |
| Cockayne Systems Limited | Administrative & support | 2019 |
| Codexx Ltd | Information & communication | 2025 |
| Colford Holdings Limited | Financial services | 2020 |
| Colleluori Ltd. | Hospitality | 2016 |
| Colville Limited | Professional & scientific | 2017 |
| Combo's & Meal Deals Ltd. | Hospitality | 2017 |
| Comvista Networks Limited | Information & communication | 2014 |
| Concepts Scotland Ltd. | Construction | 2009 |
| Consult Adhd Ltd | Health & social care | 2026 |
| Cornerstone IT Limited | Information & communication | 2026 |
| Corsie Industrial Holdings Limited | Administrative & support | 1991 |
| Cosyfloor Limited | Extraterritorial | 2022 |
| Coul Aesthetics Limited | Other services | 2020 |
| Coul Builders Ltd | Construction | 2025 |
| Coul Decorators Ltd | Construction | 2025 |
| Coul Property Improvements Ltd | Construction | 2024 |
| Craic’N Campers Scotland Ltd | Manufacturing | 2024 |
| Craiglea Timber Frames Ltd | Manufacturing | 2019 |
| Craigsco Limited | Real estate | 2014 |
| Cramond Kids Limited | Health & social care | 2018 |
| Crannog Property Glenrothes Limited | Real estate | 2025 |
| Crannog Property Limited | Real estate | 2019 |
| Crawford Heating Systems Ltd. | Construction | 2009 |
| Creating Better Ltd | Information & communication | 2025 |
| Creo Engineering Solutions Limited | Professional & scientific | 2020 |
| Crossroads Fife | Health & social care | 1997 |
| Crowning Glory Publishing Ltd | Information & communication | 2017 |
| Crystal Clear Scotland Limited | Wholesale & retail | 2021 |
| CS Hair Ltd | Other services | 2011 |
| CSC Motors Limited | Wholesale & retail | 2021 |
| Cuisine Kitchen (Glenrothes) Limited | Hospitality | 2023 |
| Culter Curry House Ltd | Hospitality | 2016 |
| Curtis Investments Ltd | Real estate | 2025 |
| Custom Cable Assemblies Limited | Manufacturing | 2008 |
| CVR Motor Engineers Ltd | Wholesale & retail | 2021 |
| CW Welding Services Ltd. | Construction | 2009 |
| Cyberline International Limited | Professional & scientific | 2001 |
| D Birrell Contractor Limited | Construction | 2021 |
| D. Slight (Services) Limited | Professional & scientific | 1986 |
| D.P. Windows & Doors Limited | Manufacturing | 2009 |
| DA Competitions Ltd | Arts & recreation | 2025 |
| DAL Segno Ltd | Construction | 2015 |