| IDM Consulting (Aberdeen) Limited | Professional & scientific | 2023 |
| IED Training Solutions Limited | Administrative & support | 2015 |
| IFB Piping Services Limited | Professional & scientific | 2007 |
| IFC Holdings Limited | Administrative & support | 1990 |
| IG HSE Services Ltd. | Professional & scientific | 2026 |
| IG Prop Ltd | Real estate | 2024 |
| IGB Property Ltd | Real estate | 2023 |
| Igbo Community Aberdeen - ICA (Nwanne DI NA MBA) Ltd | Other services | 2025 |
| Igbo Community Aberdeen Ltd | Other services | 2024 |
| Igbo Cultural Association Ltd | Other services | 2025 |
| Igbo Women Aberdeen Ltd | Education | 2025 |
| Igeo Consultancy Limited | Professional & scientific | 2018 |
| Igif Ltd | Mining & quarrying | 2018 |
| Igif Resources Ltd | Wholesale & retail | 2020 |
| Ignyt Ltd | Hospitality | 2025 |
| Ihlo Ltd | Arts & recreation | 2023 |
| IHS Lothian Limited | Construction | 2014 |
| Iiitec Limited | Administrative & support | 2006 |
| IIR Services (Aberdeen) Ltd | Hospitality | 2019 |
| IJM Shellfish Ltd | Agriculture & fishing | 2023 |
| IJR Propertyz Limited | Real estate | 2024 |
| IK & ZK Holdings Ltd | Real estate | 2025 |
| Ikad Property Ltd | Real estate | 2024 |
| Ikarians Healthtech Ltd | Information & communication | 2024 |
| Ikigai Developments Limited | Real estate | 2025 |
| Ikiji Limited | Information & communication | 2002 |
| IKY Services Ltd | Wholesale & retail | 2020 |
| Illam Properties Limited | Real estate | 2022 |
| Image HQ Limited | Information & communication | 1998 |
| Image on Glass Limited | Manufacturing | 2002 |
| Imajica Brand Evolution Limited | Information & communication | 2011 |
| Imdm Limited | Real estate | 2007 |
| Imenco Aqua UK Ltd | Administrative & support | 2007 |
| Imenco UK Limited | Mining & quarrying | 2010 |
| Imes Group Holdings Limited | Administrative & support | 2009 |
| Imes International Limited | Administrative & support | 2016 |
| Imkms Limited | Hospitality | 2014 |
| Imorph Digital Ltd | Information & communication | 2025 |
| Imorph Limited | Information & communication | 2005 |
| Impact Learning Services Ltd | Education | 2023 |
| Impact Selector Limited | Mining & quarrying | 1998 |
| Impact Subsea Ltd | Manufacturing | 2015 |
| Impaq Technologies Limited | Administrative & support | 2018 |
| Imperia Global Ltd | Administrative & support | 2023 |
| Imperialite LLP | | 2017 |
| Impress INK Ltd | Manufacturing | 2024 |
| Impressive 3 BED Aberdeen Ltd | Hospitality | 2022 |
| Impressive Engineering Limited | Construction | 2011 |
| Improvement Pro Ltd | Construction | 2020 |
| Imrandd Ltd | Professional & scientific | 2015 |
| Imrsmith Ltd | Wholesale & retail | 2025 |
| IMY Motors Ltd | Wholesale & retail | 2025 |
| IN Your Power C.I.C. | Health & social care | 2024 |
| In-Credible AI Studios Ltd | Professional & scientific | 2026 |
| Inaven Tech Ltd | Information & communication | 2026 |
| Inbloom Present Ltd | Wholesale & retail | 2025 |
| Indaver Ness Services Limited | Water & waste | 2019 |
| Independent Compliance Professionals Limited | Information & communication | 2006 |
| Independent Corrosion Services Limited | Professional & scientific | 2003 |
| Independent Ropes Ltd | Professional & scientific | 2018 |
| Independent Taxis Limited | Professional & scientific | 2002 |
| Independent Turbine Services Ltd | Professional & scientific | 2024 |
| Indepth Projects Ltd | Professional & scientific | 2023 |
| India FS Ltd | Administrative & support | 2017 |
| Indie Visual Media Ltd. | Information & communication | 2018 |
| Indigo 7 Ventures Limited | Manufacturing | 2019 |
| Indigo Drive Ltd | Information & communication | 2013 |
| Indigo Resources Limited | Professional & scientific | 2019 |
| Indigo Smart Technologies Ltd. | Information & communication | 2005 |
| Indigo Technology Group Ltd | Information & communication | 2016 |
| Indigo Technology Property Ltd | Real estate | 2021 |
| Indigodice Ltd | Energy | 2024 |
| Indlow Ltd | Real estate | 2025 |
| Indoalba Ltd. | Professional & scientific | 2011 |
| Indu Veda Ltd | Wholesale & retail | 2021 |
| Indum Consulting Ltd | Information & communication | 2017 |
| Industrial Island Limited | Professional & scientific | 2016 |
| Industryinstall Pros Limited | Manufacturing | 2025 |
| Induu Limited | Wholesale & retail | 2018 |
| Indy Cinema Group Ltd | Arts & recreation | 2012 |
| Ineos UK E&P Holdings Limited | Mining & quarrying | 1999 |
| Ines' Cabinet of Curiosities Ltd | Wholesale & retail | 2026 |
| Inferiq Clothing Limited | Wholesale & retail | 2025 |
| Infinite Power Coaching Limited | Arts & recreation | 2024 |
| Infinitelife Scotland Ltd | Administrative & support | 2024 |
| Infinity Advisors Limited | Professional & scientific | 2019 |
| Infinity Buildings Limited | Real estate | 2019 |
| Infinity Entertainment Ltd | Administrative & support | 2023 |
| Infinity Inverness Limited | Arts & recreation | 2015 |
| Infinity Oilfield Services International Limited | Professional & scientific | 2002 |
| Infinity Oilfield Services Limited | Manufacturing | 2013 |
| Infinity Partnership Limited | Financial services | 2026 |
| Infinity Property Scotland Ltd | Real estate | 2021 |
| Infinity Secretaries Limited | Extraterritorial | 2011 |
| Infinity Storage Limited | Real estate | 2017 |
| Infinity Ventures Limited | Real estate | 2011 |
| Infinityblu Healthcare Limited | Health & social care | 2012 |
| Infinityblu Holdings Limited | Real estate | 2019 |
| Infinityblu Ventures Ltd | Financial services | 2023 |
| Infinitysecondhandclothes Limited | Administrative & support | 2016 |