| IN Bingham Limited | Hospitality | 2024 |
| IN Demand Solutions Ltd | Wholesale & retail | 2024 |
| IN Focus Asset Management and Tax Solutions Limited | Financial services | 1998 |
| IN Good Hands 521 Ltd | Health & social care | 2021 |
| IN House Healthcare Limited | Health & social care | 2021 |
| IN Phase International Limited | Wholesale & retail | 2001 |
| IN Plain Site Ltd | Hospitality | 2023 |
| IN Practice Financial Management Limited | Financial services | 2003 |
| IN Residence Management Ltd | Real estate | 2014 |
| IN the Box Baby Hampers Limited | Wholesale & retail | 2022 |
| IN the Moment Art Limited | Arts & recreation | 2024 |
| IN This World Films Ltd | Information & communication | 2026 |
| In-House Care Services Ltd | Health & social care | 2018 |
| In-House Property Ltd. | Real estate | 2020 |
| In-Line Builders Limited | Construction | 2014 |
| In-Line Orthodontic UK Limited | Wholesale & retail | 2011 |
| In-Line Property Developments Limited | Real estate | 2018 |
| IN2 (Nottm) Ltd | Manufacturing | 2014 |
| IN2INVESTMENT LLP | | 2005 |
| IN2LOGISTICS Ltd | Transport & logistics | 2026 |
| IN2PEOPLE Limited | Administrative & support | 2008 |
| Inaphaea Biolabs Limited | Professional & scientific | 2023 |
| Inaveej Ltd | Information & communication | 2025 |
| Inbetween Limited | Professional & scientific | 2013 |
| Inc Contracting Limited | Information & communication | 2012 |
| Inc Lettings Limited | Real estate | 2016 |
| Inca Design and Developments Limited | Real estate | 2025 |
| Inca Gardens Design Limited | Administrative & support | 2024 |
| Inca Gardens Limited | Administrative & support | 2024 |
| Incentivate Group Ltd | Professional & scientific | 2025 |
| Inception Events Ltd | Administrative & support | 2010 |
| Inclusion Live Limited | Professional & scientific | 2020 |
| Inclusive Business Growth Ltd | Professional & scientific | 2019 |
| Inclusive Solutions UK Limited | Education | 2002 |
| Inclusivepsychology Ltd | Education | 2021 |
| Incode Technology UK Limited | Wholesale & retail | 2020 |
| Incoming Education Ltd | Education | 2025 |
| Incredibly Inclusive Ltd | Professional & scientific | 2021 |
| Indanger Alert Technology Ltd | Wholesale & retail | 2026 |
| Independence Direct Limited | Manufacturing | 2003 |
| Independence Products Ltd | Wholesale & retail | 2006 |
| Independence With Care Ltd | Health & social care | 2007 |
| Independent Artists Ltd | Administrative & support | 2025 |
| Independent Banking Professionals Ltd | Professional & scientific | 2013 |
| Independent Cafe Ventures Ltd | Hospitality | 2018 |
| Independent CHC Assessments Limited | Health & social care | 2016 |
| Independent Community Care Management Limited | Health & social care | 2003 |
| Independent Community Care Management Services Limited | Professional & scientific | 2019 |
| Independent Consulting Services Ltd | Professional & scientific | 2018 |
| Independent Hearing Professionals Ltd | Administrative & support | 2012 |
| Independent Local Radio Limited | Information & communication | 2015 |
| Independent Mercedes Benz Limited | Professional & scientific | 2012 |
| Independent Network Design & Installation Limited | Professional & scientific | 1998 |
| Independent Refrigeration & Airconditioning Limited | Professional & scientific | 2019 |
| Index Computer Supplies Ltd | Wholesale & retail | 1998 |
| Index House Bidco Limited | Financial services | 2025 |
| Index House Topco Limited | Financial services | 2025 |
| Index Property Company Limited | Real estate | 2016 |
| India Takeaway Ltd | Hospitality | 2019 |
| Indian Community Centre (Property) Limited | Professional & scientific | 2002 |
| Indian Community Centre Association | Other services | 2003 |
| Indian Community Centre Foundation (Nottingham) Limited | Professional & scientific | 2004 |
| Indian Dream Makers Ltd | Hospitality | 2025 |
| Indian Nights (ROT) Limited | Hospitality | 2024 |
| Indian Nights (Westbridgford) Limited | Hospitality | 2020 |
| Indian Nights Notts Ltd | Hospitality | 2026 |
| Indiankitchennottingham Ltd | Hospitality | 2019 |
| Indices Properties Ltd | Hospitality | 2024 |
| Indie 16 Ltd | Education | 2018 |
| Indie Digital Limited | Professional & scientific | 2025 |
| Indie Emne Ltd | Education | 2020 |
| Indiespace Ltd | Hospitality | 2022 |
| Indigeorge Catering Ltd | Hospitality | 2012 |
| Indigo Architects Limited | Professional & scientific | 2016 |
| Indigo Associates (UK) Limited | Information & communication | 2004 |
| Indigo Blue Productions Ltd | Administrative & support | 2008 |
| Indigo Design Ltd | Extraterritorial | 2018 |
| Indigo Developers 1 Ltd | Real estate | 2021 |
| Indigo Developers Ltd | Real estate | 2021 |
| Indigo Kite HR Limited | Administrative & support | 2022 |
| Indigo Management Consultants Ltd | Professional & scientific | 2023 |
| Indigo Programmes Limited | Professional & scientific | 2017 |
| Indigo Project Management Services Limited | Construction | 2017 |
| Indigo Property (Nottm) Ltd | Real estate | 2026 |
| Indigo Rock Consulting Limited | Professional & scientific | 2023 |
| Indigo Roofing Limited | Construction | 2025 |
| Indigo Search Ltd | Other services | 2018 |
| Indigo Support Solutions Limited | Professional & scientific | 2000 |
| Indigo Verve Limited | Professional & scientific | 2012 |
| Indium Homes Limited | Financial services | 2020 |
| Individuality Care and Support Limited | Health & social care | 2026 |
| Individuals Hair Design Limited | Other services | 2006 |
| Indoor Sport Services Limited | Administrative & support | 2009 |
| Inductive Wire Guidance Ltd | Manufacturing | 2026 |
| Indulgent Travel Limited | Administrative & support | 2016 |
| Indus Direct Limited | Wholesale & retail | 2025 |
| Indus Valley Furniture Limited | Wholesale & retail | 2014 |
| Indusprime Properties Limited | Construction | 2025 |
| Industrial & Commercial Hygiene Limited | Wholesale & retail | 1987 |
| Industrial Cleaning & Green Solutions Limited | Water & waste | 2025 |