| Digwell Limited | Bridlington | 1992 |
| Digz Living Limited | London | 2024 |
| Dijiu Culture Limited | Kenilworth | 2021 |
| Dileas Capital Management Limited | Upminster | 2018 |
| Dilege Yachting Ltd | Blackpool | 2024 |
| Dilemma Research Ltd | London | 2020 |
| Diligent Lighting Limited | Enfield | 2010 |
| Dill Cafe Ltd | Alton | 2022 |
| Dillcroft Limited | London | 1976 |
| Dillesons Ltd | London | 2011 |
| Dillington Holdings Ltd | Ilminster | 2022 |
| Dillistone Funeral Service Limited | Sutton Coldfield | 1974 |
| Dillon - Cawley Consultancy Ltd | Ferndown | 2012 |
| Dilshat Mametaliyev Limited | London | 2021 |
| DIM SUM YUM Ltd | Darwen | 2025 |
| DIM T Limited | Purfleet | 2003 |
| Dimalone London Co., Limited | London | 2018 |
| Dimar Aluminium Ltd | Woking | 2011 |
| Dimar Ltd | Woking | 2011 |
| Dimedium UK Limited | Henley-On-Thames | 2008 |
| Dimensional Stone Limited | Doncaster | 2013 |
| Dimitris Ltd | London | 2026 |
| Dimmi Limited | Haslemere | 2011 |
| Dimo Industry Ltd | Cardiff | 2018 |
| Dimoca Holdings Ltd | London | 2025 |
| Dimond Properties Ltd | Rugby | 2020 |
| Dimonds Chemicals Ltd. | Mildenhall | 2013 |
| Dimple Maritime Limited | London | 2024 |
| Dimples Daycare Ltd | London | 2024 |
| Dimpu Limited | Wirral | 2004 |
| DIN Akuta Bygghjalp Limited | London | 2022 |
| Dinam-On Ltd | London | 2019 |
| Dinamico Group Limited | London | 2015 |
| Dinar Tarcar Resources (UK) Limited | Harrow | 2015 |
| Dinardo Lettings Limited | Paisley | 2014 |
| Dinazad Limited | Winchester | 2002 |
| Dindinz Limited | London | 2019 |
| Dine Delivered Services Ltd. | Leeds | 2020 |
| Dineandgift.Com Limited | Berkshire | 2017 |
| Dinefwr Construction Company Limited | Swansea | 1990 |
| Dinemar Films Limited | Marlow | 2008 |
| Dinemark Heating Limited | Woodbridge | 1993 |
| Dineware Limited | Littlehampton | 2007 |
| Ding Ding Foodstuff Co., Ltd. | Beckenham | 2019 |
| Dingbat Creamery Limited | Stanford-Le-Hope | 2013 |
| Dingchen International Co., Ltd | Beckenham | 2023 |
| Dingers Hollow Farm Ltd | Darlington | 2013 |
| Dinghy Store Limited | Rochester | 2022 |
| Dingle Brothers Limited | Attleborough | 1998 |
| Dingle Hire Services Limited | Witham | 2024 |
| Dingle Supplies Limited | Witham | 2024 |
| Dingles Motor Group Limited | Attleborough | 1996 |
| Dingsen International Trade Co., Ltd | Cambridge | 2023 |
| Dingsheng Trading Ltd | Glasgow | 2015 |
| Dingxin International Development Co., Limited | Gillingham | 2016 |
| Dingzhou Shengxin Import and Export Co., Ltd | London | 2024 |
| Dining by Ashley Hyde Ltd | York | 2025 |
| Diniwe One Limited | Cobham | 1999 |
| Diniwe Two Limited | Cobham | 1999 |
| Dinkers Pickleball Limited | Heacham | 2025 |
| Dinky Doos & Dinky Donts Ltd | Hemel Hempstead | 2025 |
| Dinky Kitchen Limited | Reading | 2017 |
| Dinny Hall Intangibles Limited | Market Harborough | 2013 |
| Dinny Shaw Planning Limited | Kingston Upon Thames | 2023 |
| Dino Holdco Limited | London | 2026 |
| Dinosaurs World Co., Ltd. | Beckenham | 2013 |
| Dinotrek Limited | Widnes | 1985 |
| Dinsdale Group Limited | Ipswich | 2017 |
| Dinton Mill 2007 Limited | Potters Bar | 1973 |
| DIO Genes Financial Limited | Derby | 2011 |
| Diode Services Ltd. | Prescot | 2017 |
| Dioesp Ltd | Manchester | 2022 |
| Dionne Markland Ltd | Birmingham | 2024 |
| Diosdado Biaho SOY Ltd | London | 2024 |
| Dioxice Limited | Leicester | 2023 |
| Dipharm UK Co., Ltd | West Midlands, England | 2023 |
| Dipity Limited | London | 2022 |
| Diplocks Way Limited | Winchester | 2006 |
| Diploma One Limited | London | 2006 |
| Diploma Two Limited | London | 2002 |
| Diplomatic Intelligence Service Ltd | London | 2018 |
| Dippenhall Limited | Winchester | 2013 |
| Dippon Limited | Coleshill | 2025 |
| DIR & TOG IP Service Limited | Stafford, | 2022 |
| Direct 2 Buy Limited | Leicester | 2013 |
| Direct 2U.COM Limited | Stourbridge | 2008 |
| Direct 4 Less Limited | London | 2016 |
| Direct 4 Workgear Limited | Goole | 2010 |
| Direct 4X4 Limited | Derby | 2003 |
| Direct Agility Limited | Darlington | 2023 |
| Direct Building Control Ltd | Leamington Spa | 2010 |
| Direct CAB Line Limited | Surrey | 2004 |
| Direct Cable Supplies Ltd | Henfield | 2010 |
| Direct Care (Kent) Limited | Kent | 2008 |
| Direct Chauffeur Line.Com Limited | Surrey | 2004 |
| Direct Coach Line Limited | Surrey | 2006 |
| Direct Construction London Developments Limited | London | 2010 |
| Direct Corporate North West Ltd | Blackburn | 2022 |
| Direct Cremations Ipswich Ltd | Felixstowe | 2023 |
| Direct Cremations Suffolk Ltd | Felixstowe | 2023 |