| Blackrock Diversified Private Debt Fund Feeder LP | | 2020 |
| Blackrock Diversified Private Debt Fund GP Limited | Financial services | 2020 |
| Blackrock Diversified Private Debt Fund Master LP | | 2020 |
| Blackrock Diversified Private Debt GP LLP | | 2020 |
| Blackrock Diversified Private Debt Holdings LP | | 2020 |
| Blackrock Enterprises L.P. | | 2011 |
| Blackrock Global Renewable Power II (Scots Genpar), LLP | | 2016 |
| Blackrock Gpco, (Scotland) Ltd | Financial services | 2024 |
| Blackrock Import/Export L.P. | | 2011 |
| Blackrock Industrial L.P. | | 2011 |
| Blackrock International Limited | Financial services | 1995 |
| Blackrock Private Equity Partners IV Investments, L.P. | | 2007 |
| Blackrock Private Equity Partners V Investments, L.P. | | 2010 |
| Blackrock Private Equity VI Incentive, L.P. | | 2013 |
| Blackrock Private Growth Markets I Investments, L.P. | | 2007 |
| Blackrock Private Growth Markets II Investments, L.P. | | 2011 |
| Blackrock Private Infrastructure I Investments, L.P. | | 2008 |
| Blackrock Private Infrastructure II Investments, L.P. | | 2011 |
| Blackrock Smaller Companies Trust PLC | Financial services | 1906 |
| Blackrock Special GP (Scotland) LLP | | 2014 |
| Blackrock Technologies Group Limited | Information & communication | 2020 |
| Blackrock Trade LP | | 2014 |
| Blackrock UK 5 (Scotland) LP | | 2025 |
| Blackrock UK 6 (Scotland) LP | | 2025 |
| Blackrock UK 7 (Scotland) LP | | 2025 |
| Blackrock UK 8 (Scotland) LP | | 2025 |
| Blackrock Ulysses LP | | 2021 |
| Blacks Barbering (Slateford) Ltd | Other services | 2022 |
| Blacks Barbering Limited | Other services | 2021 |
| Blacksaif Pipelines Holdings Aggregator L.P. | | 2022 |
| Blacksaif Pipelines Scots (Genpar) LLP | | 2022 |
| Blacksea Real Estate Ltd | Real estate | 2020 |
| Blacksea Woods Limited | Other services | 2014 |
| Blackspears & Associates | | 2008 |
| Blackstone Works Limited | Wholesale & retail | 2022 |
| Blackstream Heavy Industries LP | | 2015 |
| Blackswan Lane Ltd | Construction | 2026 |
| Blackthorne Services Limited | Administrative & support | 2025 |
| Blacktip LP | | 2022 |
| Blackwater Divers Limited | Construction | 2019 |
| Blackwater Offshore Wind Holdco Limited | Financial services | 2022 |
| Blackwater Organic Ltd | Agriculture & fishing | 2024 |
| Blackwell (Scotland) Limited | Professional & scientific | 2001 |
| Blackwell Enterprises L.P. | | 2012 |
| Blackwood OIL & GAS Ltd | Professional & scientific | 2022 |
| Blackwood Partnership Limited | Professional & scientific | 2002 |
| Blackwood Solar Limited | Professional & scientific | 2023 |
| Blackwood Systems LP | | 2012 |
| Blackwood Wind Farm Limited | Energy | 2023 |
| Blade Resource Limited | Other services | 2021 |
| Bladex Ltd | Wholesale & retail | 2025 |
| Blagden 18 Ltd | Real estate | 2018 |
| Blagden Property Ltd | Real estate | 2014 |
| Blagdon Equestrian Limited | Administrative & support | 2011 |
| Blaikie Technical Solutions Ltd | Administrative & support | 2025 |
| Blainstorm LP | | 2017 |
| Blair Atholl Industrial Space Limited | Administrative & support | 2010 |
| Blair Boyle Aviation and Training Ltd | Education | 2026 |
| Blair Cadell (Nominees) Limited | Professional & scientific | 2012 |
| Blair Cadell LLP | | 2022 |
| Blair Michael Omond Limited | Professional & scientific | 2014 |
| Blair Paton Plumbing & Heating Ltd | Construction | 2022 |
| Blair Properties Limited | Hospitality | 2015 |
| Blair Residential Property Ltd | Households | 2024 |
| Blair Street Project Ltd | Real estate | 2022 |
| Blair Trust Company | Agriculture & fishing | 1925 |
| Blaircreich Estate Limited | Other services | 2026 |
| Blaircreich LLP | | 2012 |
| Blairgowrie Partners Ltd | Professional & scientific | 2024 |
| Blairmax Ltd | Information & communication | 2025 |
| Blake Garai and Wragg Limited | Wholesale & retail | 2026 |
| Blake Property Company LLP | | 2007 |
| Blake Stevenson Limited | Professional & scientific | 1992 |
| Blakemeister Limited | Professional & scientific | 2016 |
| Blaketown Investments LP | | 2012 |
| Blanberry Logistics LP | | 2013 |
| Blanchurch Enterprises | | 2000 |
| Blanchy LP | | 2014 |
| Blanco Beauty Lounge Ltd | Administrative & support | 2019 |
| Blanco DEL Bianco LP | | 2019 |
| Blandford Corporation LP | | 2013 |
| Blandine Alzy LP | | 2022 |
| Blandorg Trade LP | | 2015 |
| Blank Canvas Creative Agency Ltd | Professional & scientific | 2018 |
| Blank Keys Ltd | Information & communication | 2022 |
| Blank Plate Creative Ltd | Professional & scientific | 2025 |
| Blank Plate Hospitality Ltd | Hospitality | 2026 |
| Blank Script Limited | Arts & recreation | 2018 |
| Blank.Barbershop (Fountainbridge) Limited | Other services | 2026 |
| Blank.Barbershop Limited | Other services | 2023 |
| Blanko Group LP | | 2016 |
| Blankpage Carry GP LLP | | 2025 |
| Blankpage Carry LP | | 2025 |
| Blanton Solutions LP | | 2012 |
| Blantown Design LP | | 2012 |
| Blantyger Limited | Real estate | 2018 |
| Blast Running Limited | Administrative & support | 2023 |
| Blayzon Trade LP | | 2016 |
| Blaze Barber Limited | Other services | 2022 |
| Blaze Trade Coal LP | | 2014 |