| ESR Developments Limited | Beverley | 2012 |
| ESR Group Ltd | Cookstown | 2025 |
| Esri (UK) Cambridge Limited | Aylesbury | 1979 |
| Esri (UK) Services Limited | Aylesbury | 2000 |
| Esrl 08567912 Limited | Swindon | 2013 |
| ESS Assist Corporate Services Limited | Wakefield | 2020 |
| ESS Merger Limited | Leeds | 2013 |
| ESS Strategies Limited | Camborne | 2020 |
| Essa Consultants Ltd | London | 2019 |
| Essair Ltd | London | 2026 |
| Essanet Trustee Limited | Milton Keynes | 2024 |
| Essar Petroleum (UK) Group Limited | London | 2022 |
| Esschy Ltd | London | 2025 |
| Esscome Ltd | London | 2025 |
| Esscoo Ltd | Kington | 2025 |
| Essence Marine Service Limited | Beckenham | 2015 |
| Essence of Asabea Ltd | Spalding | 2020 |
| Essence of Asia Ltd | Leicester | 2023 |
| Essence of Beauty Ltd | London | 2007 |
| Essence of Harris Limited | Stornoway | 2017 |
| Essence of Holistic Medicine Ltd | Haverfordwest | 2023 |
| Essencecare Partners Ltd | London | 2025 |
| Essencio Ltd | Huddersfield | 2024 |
| Essendene Freehold Limited | Bude | 2009 |
| ESSENDYKE1953 Limited | Peterborough | 2013 |
| Essentar Limited | Bicester | 2008 |
| Essential Connections Lancs Ltd | Southport | 2015 |
| Essential Cosmetics Ltd | Newcastle | 2013 |
| Essential Depot Ltd | Chesham | 2008 |
| Essential Diagnostic and Supplies UK Limited | London | 2012 |
| Essential Dream Ltd | London | 2024 |
| Essential Extras Limited | Hythe | 2002 |
| Essential FM Limited | Harrogate | 2025 |
| Essential Foods Trading Ltd | Halifax | 2011 |
| Essential Interiors Limited | Wick | 1995 |
| Essential Leisure Limited | Hessle | 2005 |
| Essential Lifestyles Ltd | London | 2022 |
| Essential Logistics Solutions Limited | Leamington Spa | 2014 |
| Essential MIX Limited | London | 1997 |
| Essential Print & Packaging Ltd | Keighley | 2003 |
| Essential Print Limited | Derby | 2015 |
| Essential Print Services Limited | Derby | 2015 |
| Essential Stage Supplies Ltd | Market Harborough | 2007 |
| Essential Travel Limited | Hythe | 2001 |
| Essential Utility Limited | Manchester | 2014 |
| Essential VAT Services Ltd | Southampton | 2011 |
| Essential Vivendi Management Limited | Hemel Hempstead | 2006 |
| Essential Wellness Ltd | Huddersfield | 2015 |
| Essential Workwear Ltd | Oldham | 2013 |
| Essentiality Ltd | Didcot | 2013 |
| Essentra (Northampton) Ltd. | Kidlington | 1995 |
| Essenz DER Naturheilkunde Ltd | London | 2023 |
| Essenz DES Lebens Ltd | London | 2023 |
| Essex & Suffolk Lettings Ltd | Camberley | 1993 |
| Essex 4 X 4 Centre Limited | Brentwood | 2011 |
| Essex Animal Feeds Ltd | Brentwood | 2009 |
| Essex Blast Cleaning Ltd | Chelmsford | 2025 |
| Essex Bodyworks Ltd | Witham | 2007 |
| Essex Boys Property Ltd | Chelmsford | 2022 |
| Essex Business Academy Limited | Westcliff On Sea | 2014 |
| Essex Caravan Centre(Wholesale and Retail)Limited | Eye | 1969 |
| Essex Cladding Ltd | Colchester | 2023 |
| Essex Core Services Ltd | Brentwood | 2025 |
| Essex Dance Exclusive Ltd | Maldon | 2025 |
| Essex Development Ltd | Romford | 2013 |
| Essex Doors Limited | | 1992 |
| Essex Emergency Limited | Rochford | 2019 |
| Essex Fast Food Limited | Ilford | 2010 |
| Essex Flying School Limited | Colchester | 1988 |
| Essex Freeholds Limited | Halstead | 2017 |
| Essex Fresh Meats Limited | Basildon | 1989 |
| Essex Fresh Start Limited | London | 2015 |
| Essex Ghost Hunters Ltd | Chelmsford | 2022 |
| Essex Glass & Glazing Limited | Essex | 2000 |
| Essex Group Employee Trustee Limited | Romford | 2019 |
| Essex Link Limited | Leigh-On-Sea | 1997 |
| Essex Martial Arts Photography Limited | London | 2025 |
| Essex Motorhaus Ltd | Basildon | 2022 |
| Essex Nominees Limited | London | 1997 |
| Essex PC1 Limited | York | 2006 |
| Essex Pet Crematorium Limited | York | 2004 |
| Essex Petroleum Co. Ltd | Waltham Cross | 1982 |
| Essex Power Limited | Leigh On Sea | 2008 |
| Essex Relocations Limited | Leigh On Sea | 2010 |
| Essex Removals & Storage Limited | Leigh On Sea | 2013 |
| Essex Removals Limited | Leigh On Sea | 2010 |
| Essex Safety Glass Limited | Witham | 2016 |
| Essex Self Store Limited | Maldon | 2015 |
| Essex Shoe Repairs Limited | Manchester | 1978 |
| Essex Sporting Club Ltd | Ilford | 2018 |
| Essex Sports Cars Ltd | London | 2021 |
| Essex Street Holdings Limited | Witney | 2023 |
| Essex Tanker Services Limited | Purfleet | 2015 |
| Essexwetrooms Ltd | Stanford-Le-Hope | 2024 |
| Essie International Limited | London | 2017 |
| Essington Fruit Farm Limited | Shrewsbury | 2010 |
| Esslemont Lawn Maintenance Limited | Aberdeen | 2024 |
| Essoldo Court Management Company Limited | Warwick | 2016 |
| Esson & Aberdein Limited | Edinburgh | 2021 |
| Essorant Aerospace Ltd | Warrington | 2016 |