| I3 Investments Ltd | Real estate | 2020 |
| I3 Properties Ltd | Real estate | 2020 |
| IAN Innes Limited | Transport & logistics | 2024 |
| IBN Joinery Ltd | Construction | 2021 |
| Ibrahim Wahla Ltd | Hospitality | 2024 |
| IC Shields Limited | Hospitality | 2015 |
| ICL Construct Limited | Transport & logistics | 2024 |
| Icon Network Logistics Ltd | Transport & logistics | 2025 |
| Ideal Vehicle Leasing Limited | Administrative & support | 2018 |
| Iffrs (Scotland) Ltd | Construction | 2018 |
| IHK Services Limited | Wholesale & retail | 2022 |
| IJ Currie Enterprises Ltd | Professional & scientific | 2024 |
| ILI (Tanhill Farm) Limited | Energy | 2011 |
| Illumigen Limited | Construction | 2012 |
| Imaging (Scotland) Ltd. | Health & social care | 2010 |
| Imaging Management Limited | Extraterritorial | 2014 |
| Impact Facilities Ltd | Construction | 2025 |
| Imperial Bar (Airdrie) Limited | Wholesale & retail | 2003 |
| Imperium Strategies Limited | Professional & scientific | 2021 |
| IN Harmony With Everything Ltd | Extraterritorial | 2024 |
| IN the Black MGT Ltd | Administrative & support | 2008 |
| In-Lane Traffic Management Ltd | Professional & scientific | 2024 |
| Inca (UK) Ltd. | Arts & recreation | 2008 |
| Inchclett WF Limited | Energy | 2013 |
| Independent Benefit Consultancy Limited | Professional & scientific | 2010 |
| Independent Estates (Holdings) Ltd | Financial services | 2014 |
| Independent Estates Lets Ltd | Real estate | 2014 |
| Independent Estates Sales Ltd | Real estate | 2014 |
| Indus Global Captial Ltd | Financial services | 2026 |
| Infinity Courier Experts Ltd | Transport & logistics | 2021 |
| Infinix PVT Limited | Other services | 2023 |
| Inflowmindset Ltd | Other services | 2017 |
| Infravector Ltd | Information & communication | 2025 |
| Initiative-Electrical Limited | Construction | 2005 |
| Inland Engineering Services Ltd. | Mining & quarrying | 2005 |
| INNOV8 Housing Solutions Limited | Real estate | 2014 |
| Insight Graphic Systems Limited | Information & communication | 1995 |
| Inspire.Customvans Limited | Construction | 2022 |
| Inspired Flooring Ltd | Wholesale & retail | 2017 |
| Insync Properties Limited | Construction | 2023 |
| Integrated Engineering Support Holding Ltd | Financial services | 2022 |
| Integrated Management Systems (Scotland) Limited | Professional & scientific | 1998 |
| Integrated Nexus Ltd | Wholesale & retail | 2023 |
| Integri Consultants Ltd | Professional & scientific | 2018 |
| Intellico Catering Equipment Limited | Wholesale & retail | 2010 |
| Intelligent Consumption Ltd | Information & communication | 2021 |
| Inter AC Ltd | Other services | 2023 |
| Inter Productions Ltd | Other services | 2023 |
| Inter Rehearsal Studios Ltd | Other services | 2023 |
| Interalia Lettings Limited | Real estate | 2019 |
| Interiors by Mida Limited | Construction | 2023 |
| Interpaa Ltd | Arts & recreation | 2023 |
| INTERPRET24 Ltd | Professional & scientific | 2024 |
| Intex Plastering and Rendering Ltd | Construction | 2025 |
| Inverclyde Properties Ltd | Real estate | 2024 |
| Invest in Icons Limited | Financial services | 2023 |
| Irepair Motherwell Limited | Other services | 2015 |
| Irhaa Developer Ltd | Real estate | 2021 |
| Iridium Enterprises Limited | Hospitality | 2011 |
| Iris Partnership Limited | Financial services | 2026 |
| Isafe Homes Ltd | Energy | 2020 |
| Isla Beauty Ltd | Other services | 2019 |
| ISM 50K Pint Limited | Health & social care | 2025 |
| ISM Psychological Services Ltd | Health & social care | 2014 |
| IU Direct Ltd | Information & communication | 2025 |
| IVY Trade Sales Ltd | Wholesale & retail | 2017 |
| J & J Lets Ltd | Real estate | 2023 |
| J & L Mccallum Ltd | Real estate | 2024 |
| J a Smith Electrical Ltd | Construction | 2022 |
| J D Convenience Stores Ltd | Wholesale & retail | 2010 |
| J G Scobie Properties Ltd | Real estate | 2023 |
| J Halliday Electrical Ltd | Financial services | 2018 |
| J J Mcpartlane (UK) Limited | Hospitality | 2014 |
| J Jarrott Services Ltd | Other services | 2026 |
| J M Flooring Scotland Ltd | Construction | 2017 |
| J Moffat & SON Ltd. | Wholesale & retail | 2006 |
| J W Auto Tools Limited | Wholesale & retail | 2014 |
| J&J Joinery Contracts Ltd | Construction | 2020 |
| J&K Home Improvements Limited | Construction | 2010 |
| J&M Rolls Ltd | Wholesale & retail | 2023 |
| J&S Christmas Events Ltd | Hospitality | 2022 |
| J&W Harris Limited | Real estate | 2018 |
| J. Danskin & Company Limited | Extraterritorial | 1967 |
| J.A Smith Property Ltd | Real estate | 2024 |
| J.A.G. Auto Engineers Limited | Manufacturing | 2011 |
| J.C. Bell Newhouse Ltd. | Transport & logistics | 2003 |
| J.G. Martin Plant Hire Limited | Administrative & support | 1972 |
| J1 Holdings Ltd | Financial services | 2020 |
| Jaar Services Ltd | Professional & scientific | 2021 |
| Jacob Property Acquisition Limited | Real estate | 2017 |
| Jacqueline Mcnamee Limited | Hospitality | 2018 |
| Jade Flowers Ltd. | Extraterritorial | 2008 |
| James Adair & Sons Limited | Construction | 2005 |
| James Allan Consulting Limited | Professional & scientific | 2019 |
| James Glen Car Sales Ltd | Wholesale & retail | 2015 |
| James Hogg Limited | Transport & logistics | 2015 |
| James L. Scobie Deer Management Ltd | Agriculture & fishing | 2015 |
| James Lewis & Sons Limited | Transport & logistics | 1999 |
| James Park (Builders) Limited | Construction | 2002 |
| James Quinn Instrument Pipework Services Ltd | Manufacturing | 2015 |