| IAN Snape Agriculture Limited | Agriculture & fishing | 2015 |
| IAN Wright Associates (Midlands) Limited | Professional & scientific | 2004 |
| Ibiza Body Blitz Limited | Hospitality | 2018 |
| Ibtdevelopments Ltd | Professional & scientific | 2024 |
| ICM Solid Surface Products Limited | Extraterritorial | 2015 |
| ICN Properties Ltd | Real estate | 2025 |
| Icom Investments Limited | Information & communication | 2019 |
| Iconic Autobody Ltd | Wholesale & retail | 2018 |
| ICW Associates Limited | Information & communication | 2007 |
| Idafa Architects Ltd | Professional & scientific | 2020 |
| Ideological Property Ltd | Real estate | 2025 |
| IDM Electrical (Midlands) Limited | Construction | 2014 |
| Ihatravel Ltd | Administrative & support | 2022 |
| Ikigaihealthconsultancy Ltd | Health & social care | 2023 |
| Ikonic Lift Services Limited | Other services | 2017 |
| Ikonic Lifts Limited | Construction | 2018 |
| Ikozie Limited | Construction | 2016 |
| ILEARN2 Limited | Information & communication | 2012 |
| Illumini UK Ltd | Administrative & support | 2005 |
| IM Export Services Limited | Transport & logistics | 2004 |
| Imaan Youth Club CIC | Health & social care | 2025 |
| Imaginations Events Limited | Extraterritorial | 2010 |
| Iman Halal Shop Redditch Ltd | Wholesale & retail | 2025 |
| Imax Engineering Ltd | Manufacturing | 2007 |
| IMD Investments Limited | Real estate | 2019 |
| Imgr (UK) Limited | Information & communication | 2014 |
| Immac Limited | Construction | 2007 |
| Imogens Hair and Beauty Limited | Other services | 2012 |
| Imogen’S Avenue Limited | Real estate | 2024 |
| Imperial Fit-Out Solutions Limited | Manufacturing | 2018 |
| Imperial Property and Management Limited | Real estate | 2022 |
| Impetus App Ltd | Information & communication | 2026 |
| Implentis Consulting Ltd | Information & communication | 2025 |
| Imports & Xports Limited | Wholesale & retail | 2020 |
| Impression Electrical and Building Ltd | Administrative & support | 2019 |
| Impression House Limited | Education | 2023 |
| IN Touch Sales Recruitment Ltd | Administrative & support | 2010 |
| In-Gauge Ltd | Wholesale & retail | 2013 |
| In-Hand Properties Limited | Construction | 1998 |
| In-Situ Europe Ltd. | Wholesale & retail | 1991 |
| IN2LEADERSHIP Limited | Education | 2021 |
| Incentive Cars Limited | Administrative & support | 2010 |
| Independent Gyms Ltd | Professional & scientific | 2020 |
| Independent Living Health Care Private Limited | Health & social care | 2015 |
| Independent Martial Arts Ltd | Arts & recreation | 2024 |
| Indigo Acre Interiors Limited | Manufacturing | 2003 |
| Indigo Core Media Ltd. | Professional & scientific | 2019 |
| Indigo Pictures Limited | Information & communication | 2003 |
| Indilay Limited | Wholesale & retail | 2024 |
| Individual Systems Ltd | Information & communication | 2013 |
| Industrial Switchgear (Midlands) Holdings Limited | Manufacturing | 2010 |
| Industrial Switchgear Limited | Manufacturing | 1959 |
| Infinite Outcomes for Children Limited | Health & social care | 2014 |
| Influenco Consulting Ltd | Wholesale & retail | 2022 |
| Ingot Ltd | Information & communication | 2017 |
| Ingram IT Ltd | Information & communication | 2016 |
| Inkjet Monkey Limited | Manufacturing | 2012 |
| Innovate Outsourced Limited | Administrative & support | 2026 |
| Innovate People Solutions Ltd | Administrative & support | 2025 |
| Innovative Property Hub Limited | Real estate | 2022 |
| Inside the LAB Ltd | Wholesale & retail | 2025 |
| Insideout Events Limited | Administrative & support | 2003 |
| Insight Financial Services Redditch Ltd | Financial services | 2021 |
| Insley Homes Limited | Real estate | 2025 |
| Inspire Community Training and Development C.I.C. | Education | 2012 |
| Instyle Installations Ltd | Construction | 2025 |
| Insurance Funding Limited | Financial services | 2014 |
| Intech Property Group Ltd | Construction | 2015 |
| Intech Property Services Ltd | Construction | 2014 |
| Integral HR Limited | Administrative & support | 2019 |
| Integrate IT Solutions Limited | Information & communication | 2013 |
| Integrated Systems (UK) Ltd | Wholesale & retail | 2013 |
| Integrity Cleaning Services Ltd | Administrative & support | 2010 |
| Integrity Consultants Ltd | Extraterritorial | 2009 |
| Integrity Events Security Ltd | Extraterritorial | 2009 |
| Integrity Facilities Ltd | Administrative & support | 2021 |
| Integrity Security Group Ltd | Administrative & support | 2008 |
| Integrity Services Group Ltd | Administrative & support | 2023 |
| Integrity Systems Limited | Manufacturing | 2015 |
| Intera Digital Limited | Wholesale & retail | 2019 |
| Intercal(Uk) Limited | Professional & scientific | 2014 |
| Interface Contract Management Limited | Administrative & support | 1998 |
| Interlac Spray Finishing Limited | Professional & scientific | 2011 |
| International Castor Company Limited | Wholesale & retail | 1994 |
| International Polo Academy Limited | Information & communication | 2009 |
| International Polo Limited | Arts & recreation | 2021 |
| Inthetrade Ltd | Wholesale & retail | 2017 |
| Investaq Ltd | Real estate | 2024 |
| Iodiftem Limited | Administrative & support | 2013 |
| Ioia Car Ltd | Wholesale & retail | 2024 |
| ION Power Services Ltd | Construction | 2024 |
| IPN Developments Limited | Construction | 2024 |
| Iprint Digital Solutions Limited | Manufacturing | 2011 |
| Ipsley Barber Ltd | Other services | 2025 |
| Ipsley Croft RTM Company Limited | Households | 2026 |
| Ipsley Properties Limited | Real estate | 2010 |
| IPV1 Limited | Real estate | 2018 |
| IRB Exhibitons Design Limited | Manufacturing | 2006 |
| IRH Logistics Limited | Transport & logistics | 2015 |
| Iris Construction Projects Limited | Construction | 2004 |