| AIMA2026 Limited | Gloucester | 2026 |
| Aimal Foods Limited | Watford | 2026 |
| Aiman's Events Ltd | Dewsbury | 2026 |
| Aimax Catering Services Limited | Northampton | 2025 |
| Aimclinch Limited | Nuneaton | 1988 |
| Aime Thai Ltd | Richmond | 2014 |
| Aimee Hirsch Ltd | London | 2013 |
| Aimee's Corner Cafe Limited | Hull | 2024 |
| Aimer Catering Ltd | Ashford | 2025 |
| Aimer Limited | London | 2024 |
| Aimes Limited | Collier Row | 2001 |
| Aimpro Housing Ltd | Birmingham | 2018 |
| Aimquest Ltd | Willenhall | 2025 |
| Aims Event Management Ltd | Mitcham | 2024 |
| Aims Food Limited | Swindon | 2026 |
| Aims Hotels Limited | Harrow | 2025 |
| Aims Media Ltd | Harrow | 2025 |
| Aims Moor Food Ltd | Chesterfield | 2015 |
| Aims Traders Limited | Swindon | 2016 |
| Aimss Suppliers Limited | Newcastle | 2023 |
| Aimtowin Limited | Workington | 2011 |
| Aimz Tasty Box Limited | Leigh | 2023 |
| AIN Hotels Ltd | High Wycombe | 2020 |
| Ain'T Nothin BUT Limited | London | 1997 |
| Ainben Limited | Liverpool | 2018 |
| Ainglean Ltd | Edinburgh | 2022 |
| Ainsbury Micropub Ltd | Bradford | 2026 |
| Ainscough Contracting Limited | Cupar | 2019 |
| Ainsdale Fish and Chips Ltd | Southport | 2024 |
| Ainsdale Gastro Restaurant Ltd | Southport | 2024 |
| Ainsdale Hospitality Ltd | Southport | 2025 |
| Ainsdale Lunch and Leisure | Southport | 2009 |
| Ainsdale Pasta and Pizzera Limited | Southport | 2025 |
| Ainsdale Restaurants Ltd | Ormskirk | 2026 |
| Ainsworth Bars Ltd | Radcliffe | 2015 |
| Ainsworth Kitchens & ALE Limited | Dronfield | 2019 |
| Ainsworth's Fish & Chips Limited | Caernarfon | 2023 |
| Aintree Hotel Limited | Leeds | 1994 |
| Aintshar Ltd | Wilmslow | 2022 |
| AIO London Ltd | London | 2017 |
| Aioli Limited | London | 2024 |
| Aioli Restaurant Limited | Chester Le Street | 2023 |
| Aiom Foods Limited | Bristol | 2022 |
| Aiora Ltd | Greenford | 2025 |
| AIP Catering Limited | London | 2004 |
| Aipdn Ltd | London | 2022 |
| Aiper Ltd | London | 2020 |
| Aipim Ltd | Stockport | 2022 |
| AIQ Grub Hub Ltd | Paisley | 2025 |
| Air & Air Ltd | Watford | 2022 |
| Air & Paradise Limited | Peterborough | 2024 |
| Air (UK) (Actc) Ltd | Manchester | 2019 |
| Air (UK) Airports Ltd | Manchester | 2019 |
| Air (UK) Arndale Ltd | Manchester | 2022 |
| Air (UK) Gateway House Ltd | Manchester | 2023 |
| Air (UK) JJ Liverpool Ltd | Manchester | 2025 |
| Air (UK) Liverpool Ltd | Manchester | 2019 |
| Air (UK) Nerf Trafford Ltd | Manchester | 2020 |
| Air (UK) Oxford RD 2 Ltd | Manchester | 2019 |
| Air (UK) Oxford RD Ltd | Manchester | 2019 |
| Air (UK) Piccadilly Ltd | Manchester | 2019 |
| Air (UK) Pinks Ltd | Manchester | 2020 |
| Air (UK) Temple ST Ltd | Manchester | 2023 |
| Air (UK) Trinity Leeds Ltd | Manchester | 2020 |
| Air Accom Ltd | Martlesham | 2025 |
| Air Accommodation Limited | Liverpool | 2017 |
| Air and Dusk Hospitalities Limited | Stamford | 2023 |
| Air B & C Limited | Bristol | 2023 |
| Air B and B @ the View Limited | Carmarthen | 2023 |
| Air B&B Lilchester Ltd | Colchester | 2022 |
| Air Bar Ltd | Birmingham | 2017 |
| Air BNB Lodging Ltd | Liverpool | 2022 |
| Air Boba Limited | Manchester | 2025 |
| Air Cafe Restaurant Limited | South Croydon | 2024 |
| Air Charter (Southern Air) Limited | Hove | 1991 |
| Air Crew Accommodation Ltd | Tunbridge Wells | 2019 |
| Air Culinaire Holding Limited | Banstead | 2010 |
| Air Culinaire Worldwide UK Limited | Banstead | 2008 |
| Air Force BUN Limited | London | 2014 |
| Air Hosting Ltd | St. Albans | 2018 |
| Air LA Carte Limited | Luton | 2026 |
| Air Management Bristol Ltd | Bristol | 2018 |
| Air Premier Ltd | Seaford | 2020 |
| Air Swiss Hotels Limited | London | 2020 |
| Air to Stay Ltd | Edinburgh | 2018 |
| Air UK (Atomic) Ltd | Manchester | 2025 |
| Air UK (JJ) Leeds Ltd | Manchester | 2026 |
| Air UK (TP) Ltd | Manchester | 2025 |
| Air&Cloud Balloon Ltd | Stockport | 2018 |
| Aira Enterprise Ltd | Romford | 2026 |
| Aira Mahandru Limited | Benfleet | 2013 |
| Aira's Kitchen Ltd | Frimley | 2024 |
| Airah Enterprise Ltd | Hatfield | 2024 |
| Airah Solutions Ltd | London | 2021 |
| Airathlon Festival Limited | London | 2019 |
| Airbag Properties Limited | Horsforth | 2022 |
| Airbnb - TOM Kirby Limited | Stroud | 2025 |
| Airbnb Millers Limited | Inverness | 2026 |
| Airbnbizzare Ltd | Retford | 2025 |
| Airbnkey Ltd | Plymouth | 2023 |