| HR Solver Limited | Administrative & support | 2018 |
| HS Partners Ltd | Real estate | 2026 |
| Hsbb Holding Ltd | Administrative & support | 2024 |
| HT Beauty Ltd | Other services | 2024 |
| Hubaa Stores Limited | Wholesale & retail | 2024 |
| Humambo Investment Limited | Real estate | 2023 |
| Humble Hounds (Scotland) Ltd | Other services | 2023 |
| Hushe Property Holdings Ltd | Real estate | 2019 |
| Hutworx Ltd | Manufacturing | 2023 |
| Hy-Tech Joinery Ltd. | Construction | 2003 |
| I AM W Limited | Hospitality | 2025 |
| IAN Macleod and Company Limited | Manufacturing | 1966 |
| IAN Macleod Distillers Limited | Manufacturing | 1957 |
| Igorsandgreta Ltd | Administrative & support | 2025 |
| Ilomilo Limited | Health & social care | 2023 |
| Immutability Ltd | Information & communication | 2021 |
| Impact NLA Dance Company Ltd | Arts & recreation | 2025 |
| Imrie Electricals Ltd | Construction | 2025 |
| Independent Business Facilities Management (2018) Ltd | Administrative & support | 2018 |
| Independent Cars (U.K.) Limited | Extraterritorial | 1992 |
| Innes Couriers Ltd | Transport & logistics | 2020 |
| Instep Podiatry (Scotland) Limited | Health & social care | 2011 |
| IO Technical Services Ltd | Information & communication | 2022 |
| ION Care and Support (the Haining) Limited | Health & social care | 2016 |
| ION Care and Support Services Limited | Health & social care | 2015 |
| ION Enablement Centre Limited | Health & social care | 2025 |
| ION People Selection Limited | Administrative & support | 2017 |
| ION Technology Solutions Limited | Information & communication | 2023 |
| IPP Scomark (Holdings) Limited | Manufacturing | 2018 |
| IPP Scomark Limited | Manufacturing | 2018 |
| Irek Transport Ltd | Transport & logistics | 2019 |
| Isei Creations Limited | Manufacturing | 2021 |
| Isgr Ltd | Real estate | 2023 |
| Isolvable Ltd | Information & communication | 2021 |
| J & J Mcindoe Ltd | Wholesale & retail | 2009 |
| J & M Kennie (Holdings) Limited | Administrative & support | 1995 |
| J & M Kennie Limited | Transport & logistics | 2004 |
| J K Business Services Limited | Administrative & support | 2000 |
| J Macbrayne (Electrical Supplies) Limited | Other services | 1980 |
| J Wright Property Development Ltd | Real estate | 2020 |
| J. Macbrayne (Properties) Limited | Real estate | 1982 |
| J.S. German Car Specialists Ltd | Wholesale & retail | 2018 |
| JAI Property Management Limited | Professional & scientific | 2014 |
| JAM Electrical Edinburgh Ltd | Other services | 2016 |
| James Mochrie Plumbing and Heating Ltd | Construction | 2006 |
| Jamiemcltd Ltd | Wholesale & retail | 2025 |
| Japh Consultancy Ltd | Administrative & support | 2023 |
| Jarl Properties Limited | Real estate | 2021 |
| JD Valeting Ltd | Administrative & support | 2023 |
| Jean Armour Taxis Ltd. | Professional & scientific | 2005 |
| Jenson Beauty Academy Limited | Other services | 2016 |
| JHK Properties (Edinburgh) Limited | Real estate | 2022 |
| JHM Dance & Cheer Limited | Arts & recreation | 2017 |
| JIM Haddow Management Solutions Ltd | Professional & scientific | 2019 |
| JK Carpet's Ltd | Administrative & support | 2025 |
| JKM2023 Ltd | Hospitality | 2025 |
| JMK Software Testing Limited | Information & communication | 2013 |
| JN Scaffolding Contracts Ltd | Construction | 2022 |
| Johanstrade.Co.Uk Ltd | Wholesale & retail | 2025 |
| John Bayne & Sons Limited | Transport & logistics | 1966 |
| John Cadzow (Auldcathie) Limited | Construction | 1990 |
| John Cadzow (Glendevon) Limited | Construction | 1978 |
| John Finnigan Financial Services Limited | Financial services | 2014 |
| John Kilkenny Cars Broxburn Ltd | Wholesale & retail | 2017 |
| JOJ Taxis Ltd. | Transport & logistics | 2000 |
| Joshi Property Investment Limited | Real estate | 2019 |
| Journey ALM Ltd | Information & communication | 2022 |
| JSW Property Investments Ltd | Real estate | 2024 |
| JT Plumbing & Heating (Edinburgh) Ltd | Construction | 2022 |
| Jumping Generations CIC | Health & social care | 2025 |
| JV Parts Ltd | Wholesale & retail | 2020 |
| JVF Solutions Ltd | Information & communication | 2013 |
| JVT Polymers Ltd | Wholesale & retail | 2025 |
| K&L Scot Ltd | Financial services | 2019 |
| K&M Luxe Living Limited | Real estate | 2026 |
| K9 Team Ltd | Other services | 2023 |
| Kaal Digital Ltd | Professional & scientific | 2023 |
| Kairhia Ltd | Construction | 2022 |
| Karel Koci Limited | Transport & logistics | 2024 |
| Katyayani Foods & Co Limited | Hospitality | 2025 |
| Kavak Ltd | Hospitality | 2022 |
| KAZ Engineering Ltd | Professional & scientific | 2025 |
| KBM Diagnostics Limited | Wholesale & retail | 2025 |
| Kcsdi Ltd. | Transport & logistics | 2004 |
| Kedly Associates Ltd | Information & communication | 2020 |
| Kella Property Limited | Real estate | 2023 |
| Kennie Contracts Limited | Other services | 1987 |
| Kennie Properties Ltd. | Real estate | 2006 |
| Kenny Cross Physiotherapy Limited | Health & social care | 2013 |
| Kenny M Joinery Ltd | Construction | 2024 |
| Kera Scotland Limited | Construction | 2017 |
| Key Touch Cleaning Limited | Administrative & support | 2025 |
| KI & KA Ltd | Hospitality | 2026 |
| KL Concrete Cutting Services Limited | Manufacturing | 2022 |
| KLB Limited | Professional & scientific | 1999 |
| Kmtr Ltd | Wholesale & retail | 2025 |
| Knightbain Ltd | Real estate | 2015 |
| Knightshades West Lothian Ltd | Wholesale & retail | 2016 |
| Kona Homes Ltd. | Construction | 2025 |
| KRE Professional Services Ltd | Professional & scientific | 2018 |