| Derby City Mission Limited | Professional & scientific | 2010 |
| Derby City Mission Trading Limited | Extraterritorial | 2010 |
| Derby City South Healthcare Limited | Administrative & support | 2017 |
| Derby Cleaning Ltd | Administrative & support | 2020 |
| Derby Commercials Ltd | Wholesale & retail | 2025 |
| Derby Community Accountancy Service | Professional & scientific | 2002 |
| Derby Composite Fencing Ltd | Wholesale & retail | 2021 |
| Derby Compressor Services Ltd | Manufacturing | 2021 |
| Derby Computer Services Limited | Professional & scientific | 2003 |
| Derby County Community Trust | Arts & recreation | 2008 |
| Derby County Market Limited | Wholesale & retail | 2024 |
| Derby Curry House Ltd | Hospitality | 2025 |
| Derby Databases Ltd | Information & communication | 2011 |
| Derby Decking Limited | Construction | 2002 |
| Derby Demolition Ltd | Construction | 2012 |
| Derby Desserts Ltd | Wholesale & retail | 2024 |
| Derby Diocesan Board of Education | Education | 1949 |
| Derby Diocesan Board of Finance Limited(The) | Other services | 1928 |
| Derby Distillery Company Limited | Hospitality | 2014 |
| Derby Double Glazing Limited | Construction | 2012 |
| Derby Dragon Limited | Hospitality | 2024 |
| Derby Drives and Landscapes Limited | Professional & scientific | 2003 |
| Derby Driveways Civil Engineering Ltd | Construction | 2020 |
| Derby Drop Box Ltd | Transport & logistics | 2025 |
| Derby EAR Clinic Limited | Health & social care | 2019 |
| Derby Electrical Services Limited | Construction | 2006 |
| Derby Electricals Ltd | Construction | 2021 |
| Derby Electricians Ltd | Construction | 2023 |
| Derby Elite Travel Ltd | Transport & logistics | 2025 |
| Derby Estate Ltd | Real estate | 2025 |
| Derby Estates and Lettings Limited | Real estate | 2015 |
| Derby Estates Services Ltd | Real estate | 2022 |
| Derby Executive Travel Ltd | Transport & logistics | 2025 |
| Derby Express Couriers (Group) Limited | Financial services | 2020 |
| Derby Express Couriers (Holdings) Limited | Professional & scientific | 2012 |
| Derby Express Couriers (Overnight) Limited | Transport & logistics | 1990 |
| Derby Express Couriers LLP | | 2018 |
| Derby Express Limited | Hospitality | 2025 |
| Derby Extra Chance Football Academy Ltd | Education | 2025 |
| Derby Extreme Cheer Academy CIC | Arts & recreation | 2018 |
| Derby FC Limited | Hospitality | 2026 |
| Derby Fencing Limited | Administrative & support | 2025 |
| Derby Financial Solutions Limited | Financial services | 2013 |
| Derby Fire Alarms and Security Ltd | Administrative & support | 2023 |
| Derby Fires Limited | Wholesale & retail | 2003 |
| Derby Fish Bar Limited | Hospitality | 2025 |
| Derby Fitness Ltd | Other services | 2007 |
| Derby Foods Ltd | Hospitality | 2022 |
| Derby Fresh Foods Limited | Wholesale & retail | 2019 |
| Derby Fried Chicken Ltd | Hospitality | 2026 |
| Derby Fries Chicken Limited | Hospitality | 2025 |
| Derby Futsal Club Limited | Arts & recreation | 2019 |
| Derby Garage Doors Ltd | Wholesale & retail | 2009 |
| Derby Garage Ltd | Wholesale & retail | 2020 |
| Derby Global Trading Limited | Wholesale & retail | 2012 |
| Derby Gold Centre Ltd | Wholesale & retail | 2023 |
| Derby Golden Hand Car Wash Limited | Administrative & support | 2022 |
| Derby Grab Hire Limited | Construction | 2018 |
| Derby Grill Limited | Hospitality | 2017 |
| Derby Grinding Ltd | Manufacturing | 2018 |
| Derby Grounds Ltd | Construction | 2021 |
| Derby Groundworks Limited | Construction | 1993 |
| Derby Guest House Ltd | Hospitality | 2014 |
| Derby Hair Loss Clinic Ltd | Other services | 2024 |
| Derby Halal Butcher Ltd | Wholesale & retail | 2025 |
| Derby Hand Carwash LE2 Ltd | Administrative & support | 2025 |
| Derby High School Trust | Education | 1991 |
| Derby Hive Ltd | Real estate | 2021 |
| Derby Homes Limited | Real estate | 2002 |
| Derby Hub | Administrative & support | 2011 |
| Derby Inspire Youth CIC | Education | 2026 |
| Derby INT Ltd | Hospitality | 2026 |
| Derby Islamic Centre | Other services | 2006 |
| Derby Istanbul Limited | Hospitality | 2024 |
| Derby Istanbul Restaurant Limited | Hospitality | 2026 |
| Derby KD Ltd | Other services | 2026 |
| Derby Kfood Ltd | Hospitality | 2023 |
| Derby Land Building & Investment Company Limited(The) | Real estate | 1877 |
| Derby Landscaping Ltd | Administrative & support | 2022 |
| Derby Lane Store Ltd | Wholesale & retail | 2025 |
| Derby Laser Cutting Ltd | Administrative & support | 2018 |
| Derby Laser Hair Limited | Other services | 2022 |
| Derby Legal Assistance Ltd | Other services | 2025 |
| Derby Legends Ltd | Arts & recreation | 2023 |
| Derby Legends Snooker Academy Ltd | Arts & recreation | 2025 |
| Derby Leisure Limited | Hospitality | 2021 |
| Derby Lettings Ltd | Real estate | 2023 |
| Derby Locks & Parts Ltd | Wholesale & retail | 2024 |
| Derby Logistics Limited | Transport & logistics | 2025 |
| Derby Maintenance & Cleaning Ltd | Administrative & support | 2025 |
| Derby Maintenance Ltd | Construction | 2020 |
| Derby Marble & Granite Limited | Manufacturing | 2026 |
| Derby Masonic Hall Limited | Extraterritorial | 2002 |
| Derby Meats Ltd | Hospitality | 2015 |
| Derby Medical Ltd | Health & social care | 2024 |
| Derby Medical Services UK Ltd | Real estate | 2022 |
| Derby Medicals Direct Limited | Health & social care | 2008 |
| Derby Mini Market Ltd | Wholesale & retail | 2020 |
| Derby Montessori School Limited | Education | 2016 |
| Derby MOT & Repair Centre Ltd | Wholesale & retail | 2022 |