| BD Farm Supplies Ltd | Administrative & support | 2019 |
| Beany Products Ltd | Manufacturing | 2024 |
| Bene-Tek Ltd | Mining & quarrying | 2004 |
| Benholm Advisory Limited | Professional & scientific | 2026 |
| Bert YON Boiler and Heating Services Limited | Construction | 2023 |
| Bervie Brow Research Station and Reserve Limited | Education | 2021 |
| Bervie Cleaners Ltd | Administrative & support | 2026 |
| Bespoke Skinology Aesthetics Ltd | Health & social care | 2022 |
| BHP106 Ltd | Hospitality | 2026 |
| Bill Connon Services Limited | Mining & quarrying | 2001 |
| Bistrose Carnoustie Limited | Hospitality | 2014 |
| Bistrose Limited | Hospitality | 2013 |
| Black Swan Risk Management Consultants Ltd | Professional & scientific | 2021 |
| Black's Test Centre Holdings Limited | Financial services | 2019 |
| Blue BOY Services Limited | Mining & quarrying | 2016 |
| Blue Horizons (Scotland) Ltd | Professional & scientific | 2003 |
| Blue Lobster Fishing Ltd | Agriculture & fishing | 2022 |
| Bluesteelman Ltd | Professional & scientific | 2015 |
| BOB Buchan Ltd | Construction | 2014 |
| Bonnyton Farm Limited | Agriculture & fishing | 2025 |
| Bosco Lets Ltd | Real estate | 2026 |
| BOW Butts Trading Company Limited | Professional & scientific | 1987 |
| BP Property Management Limited | Real estate | 2022 |
| Brian Duncan (Gunsmith) Ltd | Professional & scientific | 2012 |
| Briandunbarservices Ltd | Professional & scientific | 2024 |
| Bridge END Garage (Montrose) Limited | Wholesale & retail | 2010 |
| Brigz Associates Limited | Professional & scientific | 2018 |
| Brookfields Steel Procurement Limited | Wholesale & retail | 2012 |
| Brose Scotland Ltd | Hospitality | 2026 |
| Brotherton Farms (1998) | | 1999 |
| Bruce Promotions Ltd | Professional & scientific | 2025 |
| Bryan Massie Woodland Management Limited | Agriculture & fishing | 2005 |
| Brydens Limited | Professional & scientific | 1999 |
| Bryson Tennent Ltd | Real estate | 2021 |
| BSW Contracting Services Limited | Construction | 2012 |
| Burke's Barbers Limited | Other services | 2023 |
| Buth Tabhartas Limited | Wholesale & retail | 2018 |
| C & G Systems Holdings Limited | Information & communication | 2021 |
| C & G Systems Limited | Information & communication | 2012 |
| C K Malcolm Associates Ltd | Mining & quarrying | 2022 |
| C&Jburke Ltd | Professional & scientific | 2022 |
| C3 RIG Maintenance Ltd | Professional & scientific | 2018 |
| Cabrelli Electrical Ltd. | Construction | 2008 |
| Cairnmoss (Aberdeen) Limited | | 1975 |
| Caledonian Holiday Lodges Ltd | Hospitality | 2021 |
| Cammy Creels Ltd | Agriculture & fishing | 2021 |
| Campbell and Gibb Limited | Administrative & support | 2014 |
| Camvo 197 Limited | Hospitality | 2011 |
| Carettop Science and Technology Limited | Professional & scientific | 2006 |
| Carfin Consult Ltd | Professional & scientific | 2020 |
| Carnie Drilling and Engineering Ltd | Mining & quarrying | 2018 |
| Carse Services Ltd | Mining & quarrying | 2008 |
| Cask Carriers Ltd | Transport & logistics | 2024 |
| Cass N Co Limited | Professional & scientific | 2009 |
| Cast Away Crafts Ltd | Arts & recreation | 2023 |
| Castle Group Scotland Holdings Limited | Construction | 2016 |
| Castle Group Scotland Limited | Construction | 2005 |
| CC4 Investments Ltd | Real estate | 2025 |
| Celurca Investments Limited | Administrative & support | 2007 |
| Cephas Project Management Limited | Professional & scientific | 2007 |
| Cerretti Electrical Ltd | Construction | 2015 |
| CFC Media Limited | Professional & scientific | 2025 |
| Checkpoint Cognoscente Limited | Information & communication | 2024 |
| Chop Franchise Ltd | Wholesale & retail | 2018 |
| Chrismik Ltd | Mining & quarrying | 2017 |
| Church Street Garage Limited | Wholesale & retail | 2018 |
| Circinus Consultancy Limited | Information & communication | 2015 |
| CJR Global Services Ltd | Construction | 2019 |
| Ckad Limited | Real estate | 2011 |
| Claire Duffy Projects Limited | Administrative & support | 2025 |
| Clardoon Enterprises Ltd. | Wholesale & retail | 2017 |
| Clark Real Estate Investments Ltd | Hospitality | 2022 |
| Clemence Hardange Ltd | Health & social care | 2018 |
| Cluaran Limited | Professional & scientific | 1996 |
| Club Life Ltd | Hospitality | 2021 |
| CM Process Safety Ltd | Professional & scientific | 2026 |
| Code-Spec Limited | Professional & scientific | 2008 |
| Colin Buick Ltd | Real estate | 2005 |
| Colin JT ICS Limited | Professional & scientific | 2025 |
| Comamo Holdings Ltd | Real estate | 2022 |
| Comamo Ltd | Professional & scientific | 2016 |
| Commit to 6 Limited | Arts & recreation | 2019 |
| Community Care Angus Montrose Ltd | Public administration | 2025 |
| Concept Football Ltd | Wholesale & retail | 2025 |
| Concept Sound & Vision Limited | Construction | 2003 |
| Conductor Solutions Ltd | Professional & scientific | 2024 |
| Coull Cars Ltd | Wholesale & retail | 2007 |
| Courage Fishing Limited | Agriculture & fishing | 2023 |
| CPD Training Solutions (Scotland) Limited | Education | 2013 |
| CR Apartments Ltd | Real estate | 2021 |
| Craigmore Consultancy Ltd | Real estate | 2024 |
| Craigo Farms Limited | Agriculture & fishing | 1973 |
| Craigo Renewables Limited | Energy | 2010 |
| Craik Electrical Ltd | Construction | 2018 |
| Craik Properties Limited | Real estate | 2025 |
| Crawford + West Ltd | Real estate | 2023 |
| Crawford Accounting Ltd | Professional & scientific | 2020 |
| CRC Business Growth Limited | Professional & scientific | 2018 |
| Creative Projects EVS Limited | Information & communication | 2023 |
| Cruinn Creative Works Ltd | Wholesale & retail | 2025 |