| A C Cumbria Ltd | Builders | CA11 8PW | 2019 |
| A C Developments (Cumbria) Ltd | Builders | CA11 9JE | 2020 |
| A Goodwill Roofing and Building Maintenance Ltd | Builders | CA11 9GR | 2010 |
| A J Carr Ltd | Builders | CA5 7DN | 2003 |
| A Ostle Ltd | Builders | CA7 3PB | 2011 |
| Advantage Construction Services Ltd | Builders | CA4 8RA | 2022 |
| After Aqua Ltd | Builders | CA7 9BA | 2010 |
| All Trades Property Maintenance and Construction Ltd | Builders | CA11 9BD | 2020 |
| Andy Ross Timber Frame Ltd | Builders | CA5 6AW | 2018 |
| Askins & Little Stonemasonry Specialists Ltd | Builders | CA11 8AQ | 2006 |
| Atkinson Building Contractors Ltd | Builders | CA11 9BB | 2011 |
| Avitas Services Ltd | Builders | CA7 9SJ | 2019 |
| B Nichols Ltd | Builders | CA11 8ST | 2013 |
| Bayley & Swift Ltd | Builders | CA11 7AY | 2018 |
| Billed Pro Ltd | Builders | CA11 8DJ | 2023 |
| Blossomdale Developments Ltd | Builders | CA5 6AQ | 2020 |
| Bph Site Services Ltd | Builders | CA4 8DL | 2024 |
| Bramble Nook Construction Ltd | Builders | CA4 9PH | 2018 |
| Builditwithus Ltd | Builders | CA4 8FB | 2025 |
| C & V Developments Ltd. | Builders | CA11 0FF | 2002 |
| C K Steelwork & Cladding Ltd | Builders | CA5 7NY | 2021 |
| Calvin Awde Ltd | Builders | CA11 9GR | 2004 |
| Carleton Fencing Ltd | Builders | CA4 0BT | 2006 |
| Carlisle Developments Ltd | Builders | CA4 8AG | 2026 |
| Castleview Construction (Cumbria) Ltd | Builders | CA11 9QW | 2016 |
| Chris Parker Building and Joinery Contractors Ltd | Builders | CA11 9PU | 2004 |
| Coledale Estates (Whitehaven) Ltd | Builders | CA11 7AY | 2024 |
| Coledale Ltd | Builders | CA4 8RA | 2018 |
| Commendium Ltd | Builders | CA11 7XF | 2000 |
| Ctm Carlisle Ltd | Builders | CA4 8RR | 2005 |
| Cumbria Agricultural Construction Ltd | Builders | CA5 7NY | 2022 |
| Cumbria Renovations Ltd | Builders | CA11 0EF | 2024 |
| Cyclone Distribution Ltd | Builders | CA5 7NY | 2004 |
| D & P Dixon Land & Properties Ltd | Builders | CA4 8DW | 2008 |
| D E Eastham Ltd | Builders | CA5 6AE | 2008 |
| D Wilson Bricklaying Ltd | Builders | CA11 8WF | 2021 |
| D3 Ltd | Builders | CA11 0AY | 2002 |
| Dalston Rainwater Systems Ltd | Builders | CA5 7BS | 2011 |
| Damp-Tech Ltd | Builders | CA11 8DF | 2016 |
| David G Collins Refrigeration Ltd | Builders | CA5 6JH | 2001 |
| David Veitch Ltd | Builders | CA11 9HS | 2022 |
| Db Fencing Penrith Ltd | Builders | CA11 8ST | 2026 |
| Ddrm3 Ltd | Builders | CA4 8QD | 2017 |
| Deercroft Homes Ltd | Builders | CA5 6NA | 2015 |
| Dmb Building Ltd | Builders | CA4 0HB | 2019 |
| Donaldson'S Damp Proofing Ltd | Builders | CA4 8BD | 2016 |
| E & C Armstrong (Bros.) Ltd | Builders | CA7 9BA | 2015 |
| E. B. Road Surfacing Ltd | Builders | CA4 8RR | 2014 |
| Ecological Building Systems U.K. Ltd | Builders | CA5 6LF | 2006 |
| Eden Paving and Driveways Ltd | Builders | CA11 0JG | 2019 |
| Eden Property Developments Ltd | Builders | CA11 8QU | 2000 |
| Elite Joinery & Building (Cumbria) Ltd | Builders | CA7 0AE | 2013 |
| Elite Joinery & Building Ltd | Builders | CA11 8ST | 2014 |
| Elizrose Ltd | Builders | CA5 6DS | 2021 |
| Ellison Groundworks Ltd | Builders | CA11 7HW | 2025 |
| Emac Builders Ltd | Builders | CA7 8DS | 2002 |
| Evolving Spaces Cumbria Ltd | Builders | CA11 7AY | 2024 |
| F Scott Builders Ltd | Builders | CA7 4JJ | 2003 |
| Farm & Industrial Structures Ltd | Builders | CA7 3HT | 2002 |
| Fell Projects Ltd | Builders | CA7 3PY | 2021 |
| Flake Howe Ltd | Builders | CA7 8DP | 2017 |
| Fletcher & Goodwin Ltd | Builders | CA7 9LY | 2021 |
| Four Furrows Ltd | Builders | CA5 7NY | 2017 |
| Frilu Design and Build Ltd | Builders | CA11 9FD | 2022 |
| Frontier Construction & Development Ltd | Builders | CA7 3HT | 2022 |
| G & L Ferguson (Builders) Ltd | Builders | CA5 6HN | 2002 |
| Gds Cumbria Ltd | Builders | CA11 7HW | 2017 |
| Go Solar Installations Ltd | Builders | CA4 8QS | 2023 |
| Greenscape Construction Services Ltd | Builders | CA11 7AY | 2019 |
| H.D Systems (Aspatria) Ltd | Builders | CA7 3DR | 2017 |
| H.P.E. Construction Ltd | Builders | CA4 9PL | 1999 |
| Hackthorpe Estates Ltd | Builders | CA11 0JG | 2021 |
| Harrys & Co New Builds Ltd | Builders | CA11 0RD | 2020 |
| Hartfell Homes and Developments Ltd | Builders | CA11 0BY | 2024 |
| Heath Construction (Cumbria) Ltd | Builders | CA5 7NY | 2023 |
| Hill Contracts (Northern) Ltd | Builders | CA7 2BD | 2008 |
| Hodgson Brickwork Ltd | Builders | CA11 8ER | 2023 |
| Holme Construction (UK) Ltd | Builders | CA7 4RU | 2002 |
| Hrc Contracting Ltd | Builders | CA11 7AY | 2022 |
| I J Curry & Son Ltd | Builders | CA11 0RD | 2015 |
| Ian Cannon Ltd | Builders | CA11 9NT | 2003 |
| Impi Projects Ltd | Builders | CA5 6DR | 2018 |
| Inca Construction Ltd | Builders | CA11 8ND | 2001 |
| Intek Ceilings Ltd | Builders | CA4 8GY | 2008 |
| Intek Shopfitting Solutions Ltd | Builders | CA4 8BT | 2010 |
| Irthing Developments Ltd | Builders | CA4 8RR | 2016 |
| J & A Digedan Ltd | Builders | CA11 0DF | 2013 |
| J H I Developments Ltd | Builders | CA11 9BD | 2004 |
| James Allan Builders (Carlisle) Ltd | Builders | CA7 9BA | 1973 |
| John Swift Homes Ltd | Builders | CA11 7AY | 2000 |
| Joseph Dunn (Building Contractor) Ltd | Builders | CA7 3DR | 2003 |
| Jp Plant Services Ltd | Builders | CA11 8FE | 2022 |
| Jtj Bricklaying Ltd | Builders | CA11 8TU | 2019 |
| Jtm (Carlisle) Ltd | Builders | CA11 7HW | 2025 |
| K Forrester & Son Ltd | Builders | CA11 9QF | 2012 |
| K. G. Dudson Ltd | Builders | CA11 9JG | 1981 |
| Kendal Park Estates Ltd | Builders | CA11 0JG | 2021 |
| Keriswood Ltd | Builders | CA11 0FF | 2005 |
| Kg Bricklayers Ltd | Builders | CA5 6AQ | 2018 |
| Kirk and Stone Construction Ltd | Builders | CA5 7NY | 2021 |
| L & D Building Contractors Ltd | Builders | CA11 9GR | 2008 |
| Lakes View Ltd | Builders | CA11 0JG | 2019 |
| Lee Holliday Brickwork Ltd | Builders | CA11 9NS | 2015 |
| Lisco Construction & Developments Ltd | Builders | CA11 0SY | 2025 |
| Little & Coates Ltd | Builders | CA5 6JH | 2002 |
| Longdales Construction Ltd | Builders | CA4 9SH | 2022 |
| M Atkinson Building Contractors Ltd | Builders | CA11 7AY | 2022 |
| M B Construction (North West) Ltd | Builders | CA7 8ND | 2012 |
| M C Beaty Ltd | Builders | CA11 0QU | 2014 |
| M.R. Hinde Building Ltd | Builders | CA7 2EJ | 2003 |
| Magnus Homes Ltd | Builders | CA4 0EJ | 2005 |
| Mallett Design Ltd | Builders | CA11 0FF | 2014 |
| Mallinson Fabrications Ltd | Builders | CA5 7NY | 1977 |
| Mandale Developments Ltd | Builders | CA11 0UN | 2002 |
| Materials Testing Equipment Ltd | Builders | CA11 9BQ | 1988 |
| Mcguffie Plant Hire Ltd | Builders | CA5 6QD | 2013 |
| Mds Contracting Ltd | Builders | CA5 7NW | 2018 |
| Mervyn Dicker Ltd | Builders | CA7 8LJ | 2006 |
| Mike Forrester (Construction) Ltd | Builders | CA4 8LG | 2002 |
| Moffet Construction Ltd | Builders | CA11 7HW | 2025 |
| Monster Access Ltd | Builders | CA11 7HW | 2009 |
| Morton Garden Buildings Ltd | Builders | CA5 7NY | 2010 |
| Mr Moga Ltd | Builders | CA5 6JP | 2016 |
| Murray Build & Repair Ltd | Builders | CA11 8NL | 2020 |
| New Lake Property Development Ltd | Builders | CA11 8SX | 2019 |
| Nixfm Ltd | Builders | CA11 7AY | 2025 |
| North Build Ltd | Builders | CA11 7HS | 2016 |
| Northern Damp Proofing Solutions Ltd | Builders | CA7 2EF | 2022 |
| Northern Habitat Ltd | Builders | CA11 0DT | 2013 |
| Ofi Contracts Ltd | Builders | CA11 0FA | 2024 |
| Old Carlisle Stone Company | Builders | CA7 8LJ | 2010 |
| Omnia Services (Penrith) Ltd | Builders | CA11 9JE | 2016 |
| On Track Safe Solutions Ltd | Builders | CA11 7HW | 2023 |
| Ostle Construction Ltd | Builders | CA7 8HQ | 2002 |
| Ostle Homes Ltd | Builders | CA7 3PD | 2021 |
| Otto Contracting Ltd | Builders | CA7 8EF | 2025 |
| P&M Douglas Properties Ltd | Builders | CA5 7NY | 2017 |
| Parry Contracting Ltd | Builders | CA11 9AS | 2021 |
| Paton Homes Ltd | Builders | CA4 0EJ | 2002 |
| Paul Birkett Construction Services Ltd | Builders | CA11 8BQ | 2023 |
| Paul Douglas General Building & Groundworks Ltd | Builders | CA5 7NY | 2015 |
| Pearson Building Ltd | Builders | CA7 4QS | 2005 |
| Procter Building Ltd | Builders | CA11 7SR | 2022 |
| Quattro Products Ltd | Builders | CA11 9NQ | 1999 |
| R M & T A Fisher Ltd | Builders | CA4 0JS | 2020 |
| R. Brennand Engineering Ltd | Builders | CA11 8RE | 2006 |
| Rb7 Ltd | Builders | CA11 7AY | 2014 |
| Renwick Bros. Ltd | Builders | CA11 8NT | 2002 |
| Rhfenton Construction Ltd | Builders | CA11 9GR | 2024 |
| Richard Sewell Ltd | Builders | CA7 3AS | 2002 |