| IYF Solutions Limited | Mining & quarrying | 2021 |
| Iyindu Renewables Limited | Professional & scientific | 2025 |
| Izabela's Cash 4 Clothes Ltd | Wholesale & retail | 2020 |
| Izomax Limited | Mining & quarrying | 2025 |
| J & B Hospitality Ltd | Hospitality | 2022 |
| J & C Lynch Ltd | Wholesale & retail | 2023 |
| J & E Global Services Limited | Professional & scientific | 2015 |
| J & L Energy Services Ltd | Administrative & support | 2026 |
| J & M Electrical (Aberdeen) Ltd. | Construction | 1999 |
| J & R Cafes Ltd | Hospitality | 2019 |
| J & R Restaurants Ltd | Hospitality | 2012 |
| J a Hutcheon Ltd | Professional & scientific | 2017 |
| J a Territt Roofing Services Limited | Construction | 2003 |
| J Amber Joinery Ltd | Real estate | 2017 |
| J and M Retail Ltd. | Wholesale & retail | 2018 |
| J C E (Europe) Limited | Manufacturing | 1988 |
| J C Nilma Ltd | Wholesale & retail | 2023 |
| J Cameron Plant Hire Limited | Extraterritorial | 2024 |
| J Charles Seafoods Limited | Manufacturing | 2021 |
| J Cold Limited | Wholesale & retail | 2026 |
| J Cruden & Sons & Grampian Regional Council | | 1990 |
| J Diamond Designs Ltd | Manufacturing | 2022 |
| J Gordon Ltd | Other services | 2012 |
| J H C Realisations Limited | Professional & scientific | 1922 |
| J HUA Limited | Hospitality | 2019 |
| J K L Marine Limited | Transport & logistics | 2011 |
| J Law Limited | Wholesale & retail | 2013 |
| J LEE Subsea Solutions Limited | Professional & scientific | 2012 |
| J M Taylor Accountants Limited | Professional & scientific | 2008 |
| J M Taylor Financial Services Limited | Financial services | 2008 |
| J M Taylor Limited | Professional & scientific | 2003 |
| J Mitchell Management (UK) Limited | Extraterritorial | 2012 |
| J Palmer Properties Limited | Real estate | 2022 |
| J R Webb Antiques Limited | Wholesale & retail | 2002 |
| J Retail Stores Ltd | Wholesale & retail | 2025 |
| J S Fish Limited | Wholesale & retail | 2002 |
| J S Hardgate Ltd | Hospitality | 2025 |
| J Sharpe Properties Limited | Real estate | 2012 |
| J Tech Engineering Ltd | Professional & scientific | 2016 |
| J V Carroll Ltd | Professional & scientific | 2023 |
| J Watt Restorations Limited | Wholesale & retail | 2003 |
| J Wood Tech Ltd | Information & communication | 2023 |
| J X T Limited | Professional & scientific | 2008 |
| J&A Trading Ltd | Wholesale & retail | 2019 |
| J&Af Davidson & Aberdeen City Council | | 1991 |
| J&Hp Services Ltd | Professional & scientific | 2025 |
| J&J Scotland Properties Ltd | Real estate | 2024 |
| J&R Contracting Ltd | Construction | 2022 |
| J&S Subsea Holdings Limited | Financial services | 2024 |
| J&S Subsea Limited | Mining & quarrying | 2019 |
| J&T Treats Ltd | Hospitality | 2026 |
| J'Lissia Ltd | Administrative & support | 2025 |
| J-Gracy Limited | Professional & scientific | 2018 |
| J-Tech Services Ltd | Professional & scientific | 2019 |
| J. & D. Henderson (Bridgeton) Limited | Agriculture & fishing | 1976 |
| J. Baxter & Sons (Contractors) Limited | Real estate | 1936 |
| J. Puddleducks Childcare Limited | Other services | 2008 |
| J.D. Peace & Co. (Aberdeen) Limited | Transport & logistics | 1986 |
| J.D.A. Developments Limited | Professional & scientific | 1985 |
| J.Keates Welding Services Ltd | Manufacturing | 2023 |
| J.P.B E&D Ltd | Administrative & support | 2011 |
| J.Robb Lifting Services Ltd | Professional & scientific | 2025 |
| J.W. General Industries Limited | Professional & scientific | 1945 |
| J.W. Holdings Limited | Professional & scientific | 1998 |
| J.W. Plumbing and Heating (Aberdeen) Limited | Professional & scientific | 1965 |
| J.W. Ship Repairing Limited | Professional & scientific | 1976 |
| J.W. Ship Stores (Aberdeen) Limited | Professional & scientific | 1900 |
| J1W Ltd | Professional & scientific | 2019 |
| J2 Property Developments Limited | Real estate | 2002 |
| J21 GBS Ltd | Administrative & support | 2025 |
| J4C Investments Limited | Real estate | 2023 |
| J66 Company Ltd. | Hospitality | 2017 |
| JA Coffee Ltd | Hospitality | 2023 |
| JA Foods Limited | Wholesale & retail | 2018 |
| JA Property Scotland Ltd | Real estate | 2025 |
| JA Telco Ltd | Professional & scientific | 2017 |
| JA Traders Scotland Ltd | Hospitality | 2024 |
| JA473 Ltd | Hospitality | 2025 |
| JAA Leisure Limited | Arts & recreation | 2008 |
| Jaaad Carbonyze Ltd | Professional & scientific | 2025 |
| Jaacln Investments Limited | Real estate | 2009 |
| Jabetoza Property Limited | Real estate | 2018 |
| JAC Electrical (Aberdeen) Limited | Professional & scientific | 2007 |
| Jack Booth Ltd | Construction | 2025 |
| Jack Sleigh & Sons Limited | Agriculture & fishing | 1977 |
| Jackel Investments Limited | Construction | 2017 |
| Jaco Couriers Ltd | Transport & logistics | 2010 |
| Jacobite Solutions Ltd | Professional & scientific | 2020 |
| Jade Engineering Ltd | Professional & scientific | 2016 |
| JAF Maintenance & Construction Ltd | Construction | 2026 |
| JAG Engineering (Aberdeen) Ltd | Professional & scientific | 2005 |
| JAG JED Ltd | Manufacturing | 2023 |
| JAG Properties (Aberdeen) Ltd | Real estate | 2015 |
| Jahi Laptops Ltd | Administrative & support | 2016 |
| Jaiho Ltd | Real estate | 2024 |
| Jaitoon Ltd | Hospitality | 2020 |
| JAK Global Holdings Limited | Professional & scientific | 2026 |
| Jakarta Engineering Ltd | Professional & scientific | 2025 |
| JAL Beauty Services Ltd | Wholesale & retail | 2019 |
| JAL TS EDI Limited | Other services | 2019 |