| A R M Windows and Doors Ltd | Northwich | 2025 |
| A R Marks Contracts Ltd | Harrow | 2021 |
| A R Mcdonald (Painter & Decorators) Ltd | Livingston | 2004 |
| A R Mcgough and Sons Limited | Sedbergh | 2015 |
| A R Mitchell Building Ltd | Pickering | 2020 |
| A R Morris Roofing & Construction Ltd | Eastleigh | 2008 |
| A R N Electrics Limited | Birmingham | 2023 |
| A R Naylor & Sons Limited | Rotherham | 2005 |
| A R P South East Ltd | Rochester | 2018 |
| A R Painting and Renovation Limited | Manchester | 2023 |
| A R Penn Limited | Maldon | 2009 |
| A R Plant Services Ltd | Sheffield | 2016 |
| A R Plastering Ltd | Ellon | 2008 |
| A R Plumbing & Heating (South) Ltd | Fleet | 2019 |
| A R Plumbing & Heating Limited | Norwich | 2004 |
| A R Preece Electrical Limited | Preston | 2003 |
| A R Price New Build Ltd | Cannock | 2016 |
| A R Probert Limited | Hereford | 2020 |
| A R Pugh & Co Limited | Builth Wells | 2008 |
| A R Quartz Ltd | York | 2021 |
| A R R Electrical Limited | Nottingham | 2009 |
| A R R O Contractors Ltd | Worcester Park | 2019 |
| A R Rigging and Maintenance Ltd Ltd | Fleetwood | 2024 |
| A R Rigging and Rope Access Ltd | Fleetwood | 2018 |
| A R Rood Lightning Conductor Services Limited | Nottingham | 2018 |
| A R Roofing Services Limited | Northampton | 2016 |
| A R S Developments Limited | London | 2024 |
| A R Siddans Limited | Lincolnshire | 2005 |
| A R Signalling Solutions Limited | Southampton | 2013 |
| A R Site Services Limited | Leeds | 2015 |
| A R Smith & SON Kenilworth Limited | Kenilworth | 2013 |
| A R Smith & Sons Limited | Leicester | 2002 |
| A R Stuart Roofing Ltd | Dorking | 2015 |
| A R T Heating & Electrical Ltd | Luton | 2025 |
| A R Taylor Electrical Services Ltd | Southsea | 2013 |
| A R Tickner Limited | Devon | 2003 |
| A R Troci Construction Ltd | London | 2025 |
| A R V Group Ltd | Leicester | 2015 |
| A R Wand Sprinklers Limited | Leigh-On-Sea | 2012 |
| A R Welding Ltd | Seaford | 2022 |
| A R Wells Heating Contractors Ltd | Hinckley | 2003 |
| A R White Building Limited | Derby | 2006 |
| A R Whitehead Limited | Gosport | 2007 |
| A R Will (a Firm) Ltd | Aberdeen | 2023 |
| A R Worker Construction Ltd | Wellingborough | 2021 |
| A Radford Construction Ltd | Teignmouth | 2003 |
| A Radford Ltd | New Eltham | 2019 |
| A RAE Ltd | Wrexham | 2022 |
| A Rahman Builder Ltd | Dewsbury | 2026 |
| A Raines Carpentry & Joinery Ltd | Market Drayton | 2018 |
| A Rama Builders Limited | Barking | 2024 |
| A Ratcliffe Building Contractors Limited | Cranleigh | 2018 |
| A Rated Boilers Limited | Portsmouth | 2010 |
| A Rated Conservatories Ltd | Cannock | 2014 |
| A Rated Electrical Ltd | Glasgow | 2025 |
| A Rated Heating & Plumbing Ltd | Burgess Hill | 2017 |
| A Rated Heating Services Ltd | Alcester | 2016 |
| A Rated Home Improvements Limited | Swansea | 2010 |
| A Rated Home Improvements(Fife) Ltd | Cowdenbeath | 2018 |
| A Rated Powerflush Ltd | Pontefract | 2024 |
| A Rated Roofs Ltd | Glasgow | 2016 |
| A Rated Solar Ltd | Glasgow | 2019 |
| A Rated Windows Door and Conservatories Ltd | Oldham | 2017 |
| A Rated Windows South East Ltd. | Deal | 2016 |
| A RAW Signs Limited | Leeds | 2007 |
| A RAY of Colour Ltd | Littlehampton | 2020 |
| A Real Estate Ltd | Apsley Way | 2020 |
| A Reay Joinery Limited | Bolton | 2015 |
| A Reekie Property Services Limited | Wadebridge | 2003 |
| A Reese Electrical Ltd | Caerphilly | 2015 |
| A Reeves Electrical Contractors Limited | Essex | 2007 |
| A Reinforcement Ltd | Chatham | 2019 |
| A Repairs Ltd | Wellington | 2019 |
| A Revill Services Ltd | Mansfield | 2020 |
| A Reynolds Electrical Ltd | Blackpool | 2010 |
| A Rhodes-Smith Ltd | Tewkesbury | 2022 |
| A Rich Construction Ltd | London | 2018 |
| A Richardson Joinery Services Ltd | Leeds | 2026 |
| A Richardson Plumbing & Building Limited | Shrewsbury | 2020 |
| A Richardson Setting OUT Limited | Huddersfield | 2014 |
| A Riddiough & SON Ltd | West Yorkshire | 1996 |
| A Riding Builders Limited | Preston | 1997 |
| A Roberts Construction Limited | London | 2025 |
| A Roberts Groundworks Ltd | Bristol | 2019 |
| A Roberts Plumbing and Heating Ltd | Wrexham | 2024 |
| A Robertson Electrical Solutions Ltd | Huntly | 2024 |
| A Robertson Joinery Services Limited | Bo'Ness | 2015 |
| A Robinson Floors Ltd | London | 2026 |
| A Robinson Joinery Service Ltd | Alford | 2019 |
| A Robinson Plumbing Limited | Scunthorpe | 2020 |
| A Roche Services Limited | Cwmbran | 2018 |
| A Rodger Construction Ltd | Dumbarton | 2023 |
| A Rodzoch Limited | Bolton | 2014 |
| A Rollinson & SON (Builders) Limited | Burnley | 2003 |
| A Roof and Four Walls Ltd | Clifton Village | 2024 |
| A Roofer Ltd | Chippenham | 2018 |
| A Room in the Garden Ltd | Hove | 2017 |
| A Roper & Sons Limited | Penrith | 1995 |
| A Rose Property Development Limited | Cardiff | 2021 |
| A Ross Electrics Limited | Dalbeattie | 2003 |