| John Middler and Aberdeen City Council | | 1999 |
| John Milne Auctioneers LLP | | 2023 |
| John Mutch Building Services Ltd. | Construction | 2005 |
| John R Ewan (Aberdeen) Limited | Construction | 2010 |
| John Ross (Aberdeen) Limited | Administrative & support | 2020 |
| John Ross (Ardersier) Limited | Administrative & support | 2023 |
| John Ross (Chemists) Limited | Wholesale & retail | 2000 |
| John Ross (Montrose) Limited | Administrative & support | 2022 |
| John Ross Properties Limited | Real estate | 2019 |
| John S. Findlater (Skene) Limited | Manufacturing | 2001 |
| John S.Duncan Limited | Professional & scientific | 1960 |
| John Wood Group Holdings Limited | Professional & scientific | 2019 |
| John Wood Group Limited | Professional & scientific | 1961 |
| Johnston Carmichael (Scotland) Limited | Administrative & support | 1934 |
| Johnston Carmichael LLP | | 2011 |
| Johnston Carmichael Trust Company | Financial services | 2018 |
| Johnston Carmichael Trustees Limited | Administrative & support | 2013 |
| Johnston Carmichael Wealth Limited | Administrative & support | 1983 |
| Johnturingwatson Software Solutions Ltd | Information & communication | 2025 |
| Joiner Enterprise Limited | Real estate | 2026 |
| Joinery Jigsaw Ltd | Construction | 2020 |
| Jojiban Limited | Hospitality | 2023 |
| Joklan Ltd | Transport & logistics | 2025 |
| Joli Gifts Ltd | Wholesale & retail | 2021 |
| Jolt Wealth Management Limited | Financial services | 2026 |
| Jonape Limited | Professional & scientific | 2022 |
| Jonathan Addie Photography Ltd | Professional & scientific | 2009 |
| Jones Eyecare Ltd | Wholesale & retail | 2023 |
| Jonoco Limited | Real estate | 2023 |
| Joot Consulting Ltd | Information & communication | 2019 |
| Jopaca Lettings Ltd | Real estate | 2026 |
| Jopps Motorcycles Ltd | Wholesale & retail | 2020 |
| JOR El-Property Ltd | Real estate | 2025 |
| JOR Property Ltd | Real estate | 2008 |
| Jordan Watson Joinery Ltd | Construction | 2023 |
| Jorfin Limited | Real estate | 2023 |
| Joseph Robertson (Aberdeen) Limited | Manufacturing | 1990 |
| Joseph Robertson (Ready Meals) Limited | Manufacturing | 2020 |
| Joshconstruction&Metal Limited | Construction | 2026 |
| Joss (Aberdeen) Limited | Mining & quarrying | 1934 |
| Joss Joinery and Lock Security Ltd | Construction | 2024 |
| Joss Shield Security Limited | Administrative & support | 2025 |
| Jovo Group Ltd | Wholesale & retail | 2022 |
| Joy Beauty Aberdeen Ltd | Other services | 2026 |
| Joy Joy Productions Ltd | Arts & recreation | 2023 |
| Joybeauty 165 Ltd | Other services | 2025 |
| JP Taylor Couriers Ltd | Transport & logistics | 2025 |
| JP Towing Ltd | Other services | 2025 |
| JP Trust Fire and Security Ltd | Administrative & support | 2023 |
| JPEE15 Ltd | Other services | 2024 |
| Jpesela Ltd | Real estate | 2022 |
| Jphozin Ltd | Information & communication | 2020 |
| JPR Services Limited | Construction | 1981 |
| Jprp Limited | Hospitality | 2019 |
| JPS Engineering Solutions Ltd | Construction | 2017 |
| Jp’S Kitchen Scotland Ltd | Hospitality | 2023 |
| JR Glazing &Locks Ltd | Construction | 2025 |
| JR Subsea Ltd | Mining & quarrying | 2009 |
| JRA Mechanical and Inspection Solutions Limited | Professional & scientific | 2017 |
| JRD Joinery Ltd | Construction | 2023 |
| JRF Investments Limited | Professional & scientific | 1998 |
| JRJ & PRF Limited | Financial services | 2017 |
| JRK Motorhomes Limited | Hospitality | 2021 |
| Jrpipeline Services Ltd | Professional & scientific | 2026 |
| JRW Construction Ltd | Professional & scientific | 2025 |
| JS & SM Holdings Limited | Wholesale & retail | 2022 |
| JS Aberdream Properties Ltd | Real estate | 2024 |
| JS Network Consultants Ltd | Information & communication | 2021 |
| JS Taxi Services Ltd | Transport & logistics | 2024 |
| JS Tree Services Ltd | Agriculture & fishing | 2026 |
| JS2024 Ltd | Manufacturing | 2024 |
| JS88 Ltd | Real estate | 2025 |
| Jserv Limited | Construction | 2025 |
| JSG Aberdeen Ltd | Real estate | 2018 |
| JSH Coaching & Nutrition Ltd | Arts & recreation | 2022 |
| JSK Marine Consultancy Ltd | Professional & scientific | 2025 |
| Jskr Aberdeen Ltd | Wholesale & retail | 2021 |
| JSL Sports Ltd | Education | 2025 |
| JSM Infotech Ltd | Wholesale & retail | 2016 |
| JSR Consultancy Services Ltd | Professional & scientific | 2010 |
| JST Bathrooms Limited | Construction | 2022 |
| JT Painting & Interior Limited | Construction | 2025 |
| JT Subsea Limited | Professional & scientific | 2025 |
| Jtechmarine Services Limited | Professional & scientific | 2021 |
| JTM Coaching Limited | Other services | 2025 |
| Jtse Limited | Professional & scientific | 2013 |
| JU Traders Ltd | Wholesale & retail | 2022 |
| JU03 MAC Ltd | Real estate | 2022 |
| Juakins Ltd | Health & social care | 2021 |
| Judyeno Properties Ltd | Real estate | 2022 |
| Jukh Limited | Hospitality | 2016 |
| Julia Bryce PR Ltd | Professional & scientific | 2023 |
| Julie Rafferty Limited | Health & social care | 2014 |
| Julie Stewart Associates Limited | Professional & scientific | 2010 |
| Jum-Bo Consulting Group UK Ltd | Professional & scientific | 2021 |
| Jumuna AB Ltd | Hospitality | 2025 |
| JUNO-8 Consulting Limited | Administrative & support | 2019 |
| Jupiter Air Traffic Management Solutions Ltd | Professional & scientific | 2025 |
| Jupiter Private Limited | Hospitality | 2019 |
| Just a Pound Ltd | Wholesale & retail | 2022 |