| IT Consult Eood Limited | Information & communication | 2026 |
| IT Dept Consulting Limited | Information & communication | 2011 |
| IT Design & Development Ltd | Information & communication | 2019 |
| IT Foundations Limited | Information & communication | 2000 |
| IT Infrastructure Solutions 4 U Limited | Information & communication | 2004 |
| IT Invest Capital LP | | 2018 |
| IT Professional Training Ltd | Education | 2012 |
| IT Property Ltd | Construction | 2016 |
| IT Recruitment Eood Limited | Information & communication | 2026 |
| IT Resturant Ltd | Hospitality | 2019 |
| IT Solvers (Scotland) Limited | Information & communication | 2010 |
| IT Started in the North Ltd | Wholesale & retail | 2019 |
| IT Stuff Consulting and Services L.P. | | 2012 |
| IT Style LP | | 2017 |
| IT Travel LP | | 2015 |
| It&C Group LP | | 2014 |
| It&Com LP | | 2015 |
| It's a Whole Thing Ltd | Real estate | 2019 |
| It's BS Limited | Manufacturing | 2023 |
| It's Plane & Simple Ltd | Wholesale & retail | 2020 |
| It's Transparent Supplements Limited | Wholesale & retail | 2025 |
| It.Com Ltd. | Agriculture & fishing | 1998 |
| IT500 Ltd | Information & communication | 2010 |
| IT500 Solutions Ltd | Information & communication | 2020 |
| Itacumbu LP | | 2025 |
| Itaka Maritime LP | | 2014 |
| Italian Eurobusiness Enterprises | | 1994 |
| Italy Scot Limited | Hospitality | 2025 |
| Itapebi LP | | 2020 |
| Itassociates Alliance L.P. | | 2015 |
| ITB1 Limited | Extraterritorial | 2018 |
| ITB2 Limited | Financial services | 2018 |
| Itbc Consulting Limited | Professional & scientific | 2015 |
| ITC International Traders Corporation & Co | | 1992 |
| Itec Packaging (Chester-Le-Street) Limited | Manufacturing | 1989 |
| Itech Trade Group LP | | 2017 |
| ITECH110 Ltd | Information & communication | 2025 |
| Itelligentsia Ltd. | Information & communication | 2007 |
| Itfuturelook LP | | 2016 |
| Itgenio LP | | 2021 |
| ITGX2U Limited | Administrative & support | 2022 |
| Ithaca Strategy Group Limited | Professional & scientific | 2012 |
| ITI Corporation L.P. | | 2010 |
| Itint Edinburgh Limited | Wholesale & retail | 2023 |
| ITL (Scotland) Ltd | Wholesale & retail | 2016 |
| ITL Bargain Ltd | Wholesale & retail | 2021 |
| ITM Complex L.P. | | 2015 |
| Itmaximum LP | | 2016 |
| Itology Creations Ltd | Wholesale & retail | 2023 |
| Itom LAB Limited | Information & communication | 2024 |
| ITS Sweets Company LP | | 2014 |
| ITS Trans Global LP | | 2017 |
| Itsnotradio Ltd | Arts & recreation | 2023 |
| Ittle MEG Ltd | Real estate | 2022 |
| ITV (Scotland) Limited | Professional & scientific | 2010 |
| ITV Ltvc (Scotland) Limited | Professional & scientific | 2014 |
| ITV Ltvc Scottish Limited Partnership | | 2014 |
| ITV Scottish Limited Partnership | | 2010 |
| ITW Commercial (UK) | | 2007 |
| ITY Marketing Limited | Professional & scientific | 2013 |
| Iuad Company Ltd | Hospitality | 2024 |
| Iuas Company Limited | Hospitality | 2016 |
| Iucundum Ltd | Wholesale & retail | 2018 |
| Iulianpatache Ltd | Wholesale & retail | 2025 |
| Iunacom LP | | 2012 |
| IV Aesthetics Limited | Health & social care | 2024 |
| IVA Star LP | | 2016 |
| Ivan Edin Limited | Hospitality | 2025 |
| Ivanhoe Enterprises Limited | Financial services | 2016 |
| Ivanhoe Forth Limited | Construction | 2016 |
| Ivanhoe Homes (Scotland) Limited | Professional & scientific | 2020 |
| Ivanhoe International L.P. | | 2009 |
| Ivanhoe Springwell Limited | Construction | 2017 |
| Ivanmed Group Ltd | Real estate | 2019 |
| Ivanmed Health Ltd | Other services | 2018 |
| Ivanmed Ltd | Other services | 2018 |
| IVB & YB LP | | 2014 |
| Iveagh Consulting Ltd | Professional & scientific | 2024 |
| Ivelop X Ltd | Information & communication | 2025 |
| IVF Journey Store Ltd | Wholesale & retail | 2025 |
| Ivianta Business LP | | 2017 |
| Ivico Ltd | Administrative & support | 2019 |
| Ivis Solutions Ltd | Professional & scientific | 2023 |
| Ivlife Ltd | Health & social care | 2022 |
| Ivmedispa Limited | Other services | 2023 |
| Ivon Group LP | | 2016 |
| Ivory & Company Limited | Real estate | 1997 |
| Ivory & Gleam Ltd | Manufacturing | 2025 |
| Ivory & Sime Limited | Professional & scientific | 2002 |
| Ivory Trade Company LP | | 2017 |
| Ivoryarc Limited | Professional & scientific | 2025 |
| Ivvi Assistant Ltd | Information & communication | 2021 |
| IVY (ISM) Limited | Wholesale & retail | 2025 |
| IVY Bakes Limited | Hospitality | 2025 |
| IVY Big Band CIC | Arts & recreation | 2025 |
| IVY Braveheart Ltd | Hospitality | 2025 |
| IVY HR Limited | Administrative & support | 2016 |
| IVY Leaf Properties Limited | Construction | 2007 |
| IVY Therapy Limited | Wholesale & retail | 2016 |
| Ivyeltherapies Ltd | Health & social care | 2026 |