| 3 Catering Limited | Bicester | 2019 |
| 3 Cedarwood Close RTM Company Limited | Cheadle | 2013 |
| 3 Chefs Derby Limited | Derby | 2023 |
| 3 Chefs Fish Bar Limited | Derby | 2017 |
| 3 Chickens Ltd | Sheffield | 2023 |
| 3 Cleveland Road Management Company Limited | North Shields | 2006 |
| 3 Compasses (Clydach) Ltd | Swansea | 2022 |
| 3 Continents Event Limited | Hull | 2024 |
| 3 Counties Lounge Limited | Malvern | 2026 |
| 3 Delis Limited | London | 2021 |
| 3 DOT Herts Limited | Harlow | 2019 |
| 3 Eagles Restaurant Ltd | Llangollen | 2026 |
| 3 Elements Catering Ltd | Magherafelt | 2020 |
| 3 Elton Road Management Company Limited | Clevedon | 1994 |
| 3 Entertainment Sunderland Ltd | Dungannon | 2019 |
| 3 Five 1 Restaurant Ltd | Coventry | 2019 |
| 3 Five’S Caribbean Fusion & Catering Service Limited | Salford | 2026 |
| 3 Flavours Brackley Ltd | Brackley | 2026 |
| 3 Flavours London Ltd | London | 2025 |
| 3 Flavours UK Ltd | London | 2020 |
| 3 Fratelli Ltd | Edgware | 2021 |
| 3 Gates Services Limited | Rubery Birmingham | 1985 |
| 3 Generations Limited | Bridgwater | 2014 |
| 3 Girls Catering Ltd | Glasgow | 2022 |
| 3 Guys Ltd | London | 2015 |
| 3 Guys Peri Peri Grill Ltd | London | 2025 |
| 3 Guys Restaurant Ltd | Salisbury | 2021 |
| 3 G’S Inns Ltd | Southampton | 2019 |
| 3 H Motors Limited | Sheffield | 1976 |
| 3 Henrietta Street Limited | Bushey | 2020 |
| 3 Hill Street Limited | Lydney | 2013 |
| 3 Horseshoes Ecton Limited | Wellingborough | 2010 |
| 3 in 1 Burger Ltd | Birmingham | 2022 |
| 3 in the Forrest Property Management Limited | Ivybridge | 2026 |
| 3 Inn Limited | Bedford | 2004 |
| 3 Kegs Limited | London | 2018 |
| 3 Kilns Ltd | Leicester | 2020 |
| 3 Leaf Ltd | London | 2018 |
| 3 Little Birds MAG Ltd | Bristol | 2022 |
| 3 Little Birds Restaurant Ltd | Leicester | 2023 |
| 3 Little Ladies Ltd | Glasgow | 2024 |
| 3 Little Pigs Souvlaki Bar Ltd | Borehamwood | 2015 |
| 3 Locks Brewing Company Limited | London | 2022 |
| 3 Luanet Limited | Waltham Abbey | 2023 |
| 3 Lums Limited | Aberdeen | 2026 |
| 3 Lums Pubco Limited | Aberdeen | 2026 |
| 3 Mason Road Limited | Birmingham | 2017 |
| 3 Mates Limited | Hounslow | 2019 |
| 3 Monkeys (Preston) Ltd | Preston | 2017 |
| 3 Montpelier Terrace Limited | Brighton | 2001 |
| 3 Nations ENT Ltd | Cardiff | 2025 |
| 3 of Cups Durham Ltd | Durham | 2024 |
| 3 OFC Ltd | Littlehampton | 2026 |
| 3 Paddy's Limited | Edinburgh | 2023 |
| 3 Peaks Bunkroom Limited | Skipton | 2017 |
| 3 Peas in a POD PUB Co Limited | Frodsham | 2013 |
| 3 Points Cafe Ltd | Hertfordshire | 2018 |
| 3 Primos Ltd | Bradford | 2018 |
| 3 Radnor Street Plymouth Limited | Exeter | 1995 |
| 3 Redland Park Bristol Limited | Bristol | 1988 |
| 3 Royal Crescent Limited | London | 1993 |
| 3 RRR Ltd | East Ham | 2023 |
| 3 RXT Ltd | Newcastle Upon Tyne | 2022 |
| 3 Sigma Coatbridge Ltd | Glasgow | 2023 |
| 3 Sister (Nottingham) Ltd | Bournemouth | 2024 |
| 3 Sisters & Co Coffee Ltd | Newry | 2026 |
| 3 Spice Delivery Ltd | Letchworth Garden City | 2024 |
| 3 Spices Restaurant Limited | Nottingham | 2021 |
| 3 Spirits Enterprises Limited | Stourport On Severn | 2014 |
| 3 Spoons Sussex Ltd | Brighton | 2026 |
| 3 Square Meals Limited | Penzance | 2022 |
| 3 ST Mary’S York Limited | York | 2025 |
| 3 ST Peters Ltd | Bedford | 2019 |
| 3 Stags PUB Co Ltd | Brighton | 2023 |
| 3 Star Catering Ltd | Pontyclun | 2018 |
| 3 Star Kebabish Ltd | London | 2019 |
| 3 Star Organic Ltd | London | 2025 |
| 3 Star Takeaway Limited | Watford | 2026 |
| 3 Steps Project North East Community Interest Company | Newcastle Upon Tyne | 2018 |
| 3 Sugars Ltd | Walsall | 2023 |
| 3 Taste Ltd | March | 2025 |
| 3 Teign Street Limited | Northampton | 2017 |
| 3 Thai Ltd | Lincoln | 2014 |
| 3 Three's Coffee Lounge Limited | Birmingham | 2015 |
| 3 Towns China Ltd | Stevenston | 2019 |
| 3 UN Limited | Inverness | 2023 |
| 3 WEE Puddns Ltd | Glasgow | 2013 |
| 3 Westbury Road Management Limited | Bristol, Avon | 1987 |
| 3 Wheel Catering Ltd | Stourbridge | 2020 |
| 3 Whitehall Whitby Limited | Yarm | 2017 |
| 3 Wise MEN Pubs Ltd | Belfast | 2017 |
| 3 Yaar Limited | Romford | 2018 |
| 3 York Place Ltd | Rotherham | 2022 |
| 3-PLY Limited | Leeds | 2020 |
| 3.14PER Ltd | London | 2022 |
| 30 Bonchurch Road Limited | Brighton | 2011 |
| 30 Cadogan Road Management Limited | Surrey | 2004 |
| 30 College Road Brighton Limited | Brighton | 2006 |
| 30 Constitution Street Limited | Dundee | 2022 |
| 30 Dean Street Ltd | London | 2024 |