| 201 Bishopsgate Limited | London | 1998 |
| 2012 Partnership Homes Ltd | Derby | 2012 |
| 2014 Construction Limited | Northolt | 2013 |
| 2017 Ltd | Edgware | 2012 |
| 2017ZEE Trading Ltd | Morden | 2017 |
| 2019 Ltd | Cardiff | 2018 |
| 202 Ahst GAS Services Ltd | Manchester | 2021 |
| 2020 AB Corporation Limited | Crowthorne | 2019 |
| 2020 Design & Fit Ltd | Hayes | 2022 |
| 2020 Developments (Luton) Limited | Luton | 2015 |
| 2020 Developments Scotland Ltd | Larkhall | 2020 |
| 2020 Developments Teesside Ltd | Middlesbrough | 2020 |
| 2020 FHL Ltd | Nottingham | 1995 |
| 2020 GMI Trans Ltd | Milton Keynes | 2020 |
| 2020 Groundworks Limited | Bournemouth | 2020 |
| 2020 Group UK Developments Limited | Wakefield | 2015 |
| 2020 Joinery and Construction Limited | Shrewsbury | 2012 |
| 2020 Malvern Developments Ltd | Malvern | 2020 |
| 2020 Property Developments Limited | Penryn | 2007 |
| 2020 Scaffolding Solutions Limited | Durham | 2020 |
| 2020 Solar PV Ltd | Worcester | 2010 |
| 2020 SR Limited | Wakefield | 2019 |
| 2020 Victoria Terrace Limited | Wakefield | 2016 |
| 2020 Vision (Camberley) Limited | Basingstoke | 2015 |
| 2020 Vision Homes Ltd | Hemel Hempstead | 2020 |
| 202021 Limited | London | 2017 |
| 2020SCAFFOLDING Ltd | Bordon | 2019 |
| 2020SPV001 Limited | Middlesbrough | 2019 |
| 2024 Limited | Crowborough | 2023 |
| 2025 Group Ltd | London | 2025 |
| 2025 Holdings Ltd | Castleford | 2022 |
| 2025 Ltd | London | 2025 |
| 2026 Developments Ltd | London | 2026 |
| 202CONSTRUCTION Limited | Tadcaster | 2010 |
| 203 West Limited | Fareham | 2026 |
| 2030 Developments Ltd | Morden | 2025 |
| 2030 Properties Limited | Belfast | 2012 |
| 205 PM Ltd | Faversham | 2026 |
| 2050 Resin Trade Supplies Limited | Oldbury | 2019 |
| 2050 Technologies Ltd | Omagh | 2021 |
| 206 Derby Road Limited | Nottingham | 2016 |
| 207 Copnor Road Limited | Barnet | 2023 |
| 207 HS JV Ltd | Brighton | 2024 |
| 207 Uxbridge Road MC Limited | London | 2024 |
| 208 Limited | Bristol | 2025 |
| 20A Waterside Ltd | Liverpool | 2024 |
| 20BUILDS Limited | Birmingham | 2025 |
| 20ONE12 Ltd | Bury St Edmunds | 2023 |
| 20SIX (South East) Ltd | Henfield | 2010 |
| 20TEN Contracts Ltd | Carlisle | 2025 |
| 20TH Century Builders Ltd | Maldon | 2022 |
| 20TWENTY Construction Limited | Bath | 2023 |
| 20X Property Ltd | Manchester | 2024 |
| 21 13 Projects Ltd | Orpington | 2022 |
| 21 Airconditioning Ltd | Coventry | 2022 |
| 21 Banner Limited | Warwick | 2025 |
| 21 Bridge Street Development Ltd | London | 2026 |
| 21 Carpentry Limited | Lancing | 2023 |
| 21 Construction Group Ltd | London | 2021 |
| 21 Construction Ltd | Ballymena | 2023 |
| 21 Corkland Road Limited | Hyde | 2010 |
| 21 Dbri Limited | Warrington | 2020 |
| 21 Degrees C Limited | Castle Cary | 2006 |
| 21 Degrees Heating Limited | Harrow | 2004 |
| 21 Degrees Limited | Hebburn | 2003 |
| 21 Degrees London Ltd | London | 2024 |
| 21 Degrees Plumbing Limited | Kirkcaldy | 2019 |
| 21 Design Construction Limited | Birmingham | 2024 |
| 21 Developments Limited | Birmingham | 2016 |
| 21 Diamonds Ltd | London | 2022 |
| 21 Fraser Street Limited | London | 2014 |
| 21 Living Limited | Altrincham | 2021 |
| 21 Moy's Ltd | Stowmarket | 2021 |
| 21 Pharma Ltd | Maidenhead | 2016 |
| 21 Plumbers ROW Limited | London | 2016 |
| 21 Roofing Ltd | Eastleigh | 2024 |
| 21 SID Limited | London | 2012 |
| 21 SID Property Ltd | London | 2025 |
| 21 Sutton Road Shrewsbury Ltd | Shrewsbury | 2025 |
| 21 Vicar Street Developments Limited | London | 2022 |
| 21-23 the Drapery Ltd | Milton Keynes | 2025 |
| 212 Fabrication Limited | Renfrew | 2014 |
| 212 Group Limited | London | 2021 |
| 212 Solutions Ltd | Hitchin | 2021 |
| 2123 the Bridge Ltd | London | 2024 |
| 213 Glos RD Limited | Bristol | 2023 |
| 214 Ceramics and Bathrooms Ltd | Winchester | 2023 |
| 215 London Road Development Ltd | Braintree | 2022 |
| 217 Harrow Road Limited | London | 2022 |
| 217 Old Ford Road Freehold Limited | London | 2020 |
| 218 Hale Road Limited | Altrincham | 2020 |
| 21856MPG Ltd | Sheffield | 2022 |
| 219SJS Ltd | London | 2021 |
| 21C Properties Limited | Hayling Island | 2016 |
| 21DEGREE Heating Ltd | Liverpool | 2018 |
| 21DLE Ltd | Dursley | 2014 |
| 21FAB Building Ltd | London | 2024 |
| 21ST ARC Limited | Surrey | 2010 |
| 21ST Century Building Services Ltd. | Bristol | 2000 |
| 21ST Century Carpentry Building Services Limited | Brighton | 2012 |