| Exeter Plumbing Solutions Ltd | Construction | 2024 |
| Exeter Premier Taxis Limited | Transport & logistics | 2026 |
| Exeter Projects Limited | Construction | 2003 |
| Exeter Property Co Limited | Administrative & support | 2025 |
| Exeter Property Maintenance Limited | Construction | 2017 |
| Exeter Property Solutions Limited | Real estate | 2022 |
| Exeter Refined Cleaning Ltd | Administrative & support | 2026 |
| Exeter Respect CIC | Arts & recreation | 2013 |
| Exeter Roofing Limited | Other services | 2014 |
| Exeter Rowing Club Ltd | Arts & recreation | 2016 |
| Exeter Rugby Club Limited | Arts & recreation | 1997 |
| Exeter Rugby Group Limited | Arts & recreation | 1997 |
| Exeter Saracens Rugby Football Club Limited | Arts & recreation | 2015 |
| Exeter Science Park Limited | Hospitality | 2009 |
| Exeter Scientific Developments Ltd | Manufacturing | 2015 |
| Exeter Scrapstore | Other services | 2011 |
| Exeter Self Defence Academy Ltd | Education | 2022 |
| Exeter Sewing Machine Company Ltd | Wholesale & retail | 2015 |
| Exeter Sliding Wardrobes Ltd | Manufacturing | 2021 |
| Exeter Solar Ltd | Construction | 2011 |
| Exeter Space Limited | Administrative & support | 2025 |
| Exeter Specialist Healthcare Ltd | Education | 2022 |
| Exeter Spice Ltd | Hospitality | 2025 |
| Exeter Spine Limited | Health & social care | 2013 |
| Exeter Sports Academy Limited | Real estate | 2014 |
| Exeter Spray Centre Limited | Construction | 2022 |
| Exeter Starlites Ltd | Arts & recreation | 2015 |
| Exeter Student Houses Ltd | Real estate | 2017 |
| Exeter Student Pads Limited | Real estate | 2022 |
| Exeter Student Partnership LLP | | 2017 |
| Exeter Supply Partnership C.I.C. | Education | 2016 |
| Exeter Sustainable Enterprises Limited | Information & communication | 2011 |
| Exeter Tarpaulin Services Ltd | Manufacturing | 2008 |
| Exeter Trade Aluminium Limited | Manufacturing | 2021 |
| Exeter Traders in Collectables Limited | Real estate | 1994 |
| Exeter Trading Hub Ltd | Real estate | 2020 |
| Exeter Trampoline Centre | Arts & recreation | 2018 |
| Exeter Transport Limited | Transport & logistics | 2026 |
| Exeter Travel Clinic Ltd | Health & social care | 2008 |
| Exeter Tutors Ltd | Education | 2015 |
| Exeter Tyres & Servicing Limited | Wholesale & retail | 2023 |
| Exeter Tyres and Services Ltd | Wholesale & retail | 2026 |
| Exeter Tyres Limited | Extraterritorial | 2025 |
| Exeter Upper GI Ltd | Health & social care | 2020 |
| Exeter Valeting and Detailing Ltd | Administrative & support | 2020 |
| Exeter Vascular Services Limited | Health & social care | 2016 |
| Exeter Vetcare Ltd | Professional & scientific | 2010 |
| Exeter Vineyard Church | Other services | 1996 |
| Exeter Visual Art | Arts & recreation | 2007 |
| Exeter Waste to Energy Limited | Water & waste | 2017 |
| Exeter Water Sports Association Ltd | Arts & recreation | 2025 |
| Exeter Wellbeing Hub Ltd | Health & social care | 2024 |
| Exeter Yoga Workshop Ltd | Health & social care | 2014 |
| EXETERSECURITYANDK9SERVICES Ltd | Administrative & support | 2025 |
| Exetra Clean Ltd | Administrative & support | 2024 |
| Exetrak Limited | Wholesale & retail | 2024 |
| Exewake Ltd | Arts & recreation | 2017 |
| Exhibition Power Limited | Administrative & support | 2013 |
| Exminster Avocet Limited | Real estate | 2026 |
| Exminster Golf Limited | Arts & recreation | 2024 |
| Exminster Hair & Beauty Ltd | Other services | 2018 |
| Exminster Pharmacy Limited | Wholesale & retail | 2004 |
| Exmoor Capital (UK) Limited | Financial services | 2025 |
| Exmoor Rural Co. Ltd | Wholesale & retail | 2024 |
| Exmouth Car Breakers Limited | Extraterritorial | 2013 |
| Exmouth DAB Ltd | Information & communication | 2025 |
| Exmouth Events Ltd | Arts & recreation | 2026 |
| Exmouth Kebab Limited | Hospitality | 2022 |
| Exmouth Marina Ltd | Transport & logistics | 1898 |
| Exmouth Marine Services Limited | Transport & logistics | 2022 |
| Exmouth Port Services Company Limited | Real estate | 1980 |
| Exmouth Properties Limited | Real estate | 2008 |
| Exon Mews Amenity Limited | Extraterritorial | 2004 |
| Exon Tech Limited | Professional & scientific | 2001 |
| Exonia Bowling Club Limited(The) | Arts & recreation | 1928 |
| Exonia Scaffolding Ltd | Construction | 2021 |
| Exonian Property Investment Limited | Real estate | 2017 |
| Exonic UK Limited | Information & communication | 2021 |
| Exotic Business Ltd | Wholesale & retail | 2020 |
| Exotic Elements Limited | Agriculture & fishing | 2023 |
| Expat Club Ltd | Other services | 2002 |
| Expedience Ltd | Financial services | 2014 |
| Expedite Advisory Services Ltd | Professional & scientific | 2024 |
| Expedite Building Services (Midlands) Ltd | Administrative & support | 2024 |
| Expedite Building Services Limited | Administrative & support | 2021 |
| Expedite Fire Limited | Administrative & support | 2025 |
| Expedite Interiors Ltd | Professional & scientific | 2022 |
| Expedite Recruitment Services Limited | Administrative & support | 2025 |
| Expedite Safety Limited | Administrative & support | 2021 |
| Expedware Limited | Public administration | 2024 |
| Exploring Exeter Ltd | Information & communication | 2025 |
| Express (Exeter) Ltd | Hospitality | 2024 |
| Express Courier Services (UK) Limited | Transport & logistics | 2026 |
| Extensa Group Ltd | Hospitality | 2024 |
| External Cleaning SW Limited | Administrative & support | 2017 |
| Exthetics Ltd | Health & social care | 2020 |
| Exton Pubs Ltd | Hospitality | 2024 |
| Exton Riverfront Road Company Limited | Households | 2006 |
| Extra Legal Thinking Ltd | Professional & scientific | 2024 |
| Extrusion Lines Limited | Manufacturing | 2011 |