| 1ne Group Ltd | Builders | DH4 7PP | 2018 |
| A.M. Watt Design & Build Ltd | Builders | SR3 1TN | 1987 |
| Advance Service Technology Co. Ltd | Builders | SR5 4AL | 2020 |
| Advanta Heat Ltd | Builders | SR5 2AU | 2024 |
| Afl Holdings Ltd | Builders | SR5 4EJ | 2025 |
| Aj Building Solutions Ltd | Builders | DH5 0DE | 2026 |
| Akm Bespoke Ltd | Builders | SR5 3PE | 2026 |
| Alan Cameron Building Services Ltd | Builders | DH4 6RE | 2016 |
| Alex Grange Developments Ltd | Builders | SR5 5SY | 2025 |
| Alitepropertymaintenance Ltd | Builders | SR3 3EA | 2026 |
| Alpha Control Solutions Ltd | Builders | SR3 2GQ | 2018 |
| Am Groundworks Ne Ltd | Builders | DH4 5DU | 2026 |
| Apa Offshore Services Ltd | Builders | SR3 1PA | 2024 |
| Aquinox Contracts Ltd | Builders | SR3 3PP | 2016 |
| Aria Builders Ltd | Builders | DH4 7LT | 2025 |
| Aria Plastering Ltd | Builders | DH4 7LT | 2025 |
| Artistry Inns Ltd | Builders | DH4 5DU | 2025 |
| Atkinson Developments (Ne) Ltd | Builders | SR3 4EW | 2025 |
| B Ridley Construction Ltd | Builders | DH4 6LG | 2025 |
| Bartram Developments Ltd | Builders | SR5 3PE | 2001 |
| Bathroom Mobility Direct Ltd | Builders | SR3 1UG | 2025 |
| Baxter and Pattison Decorating and Building Services Ltd | Builders | SR5 3TX | 2008 |
| Beckwith Consultants Ltd | Builders | SR3 3NE | 2025 |
| Bell Control Services Ltd | Builders | DH4 4EH | 2020 |
| Benchmark Surveys Ltd | Builders | SR5 5TS | 2018 |
| Bespoke Interiors North East Ltd | Builders | SR3 2EW | 2025 |
| Black Trowel Ltd | Builders | SR3 3LQ | 2023 |
| Blakey Developments Ne Ltd | Builders | SR3 2UP | 2025 |
| Blk Construction (North East) Ltd | Builders | DH5 9AA | 2009 |
| Brennan Access Ltd | Builders | DH4 7PA | 2025 |
| Burrell Wind Service Ltd | Builders | DH4 6GT | 2025 |
| C.C.G.M. Ltd | Builders | DH5 8GB | 2023 |
| C.J Engineering Services Ltd | Builders | SR3 3QN | 2019 |
| Cadman and Forrest Ltd | Builders | DH4 4PG | 2024 |
| Callum Todd Property Maintenance Ltd | Builders | DH4 4XA | 2026 |
| Carter Building & Construction Ltd | Builders | SR3 2WD | 2003 |
| Castlegreen Construction Ltd | Builders | DH5 9RY | 2023 |
| Cdl Contracts North East Ltd | Builders | SR3 2DD | 2016 |
| Chapter Thorpe Ltd. | Builders | DH5 9PF | 2017 |
| Chimney Craft Ltd | Builders | DH4 4JU | 2026 |
| City Building Services (Ne) Ltd | Builders | SR5 3JJ | 2012 |
| Ck Contractors North East Ltd | Builders | SR5 5NN | 2024 |
| Cladcliffe Ltd | Builders | DH4 4PB | 2020 |
| Cleanrooms (Northern) Ltd | Builders | DH5 8LQ | 2023 |
| Cmlr Ltd | Builders | SR3 2FG | 2016 |
| Cobalt Facility Management Ltd | Builders | DH4 5DU | 2024 |
| Colquhoun Pm Services Ltd | Builders | DH5 8BY | 2023 |
| Crawford Cladding Solutions Ltd | Builders | DH4 7NS | 2023 |
| Cummings and Ayre Fencing and Decking Ltd | Builders | SR3 4JJ | 2016 |
| Cwl Home Improvements Ltd | Builders | DH5 0JN | 2019 |
| D & S Contracts (Ne) Ltd | Builders | SR5 1NH | 2016 |
| D Slee Building Services Ltd | Builders | DH5 9LE | 2021 |
| D&J Damp Proofing Ltd | Builders | SR3 1RL | 2026 |
| D.Parker Renewable Services Ltd | Builders | SR3 2GB | 2024 |
| Dannat Drywall Ltd | Builders | DH4 6TX | 2002 |
| David Maw Ltd | Builders | SR5 4QB | 2014 |
| Day & Night Property Services Ltd | Builders | DH4 6AD | 2011 |
| Design Direction Ltd | Builders | SR5 1RS | 1998 |
| Djp Surveying Services Ltd | Builders | SR5 2QL | 2022 |
| Dlk Ne Ltd | Builders | SR5 5QB | 2022 |
| Dm Property Services (Ne) Ltd | Builders | SR5 2TH | 2026 |
| Domgm Ltd | Builders | SR5 5ET | 2018 |
| Dream Build Homes Ne Ltd | Builders | DH4 5DU | 2026 |
| Dtr Ltd | Builders | DH4 6JZ | 2025 |
| Duncan Colquhoun Construction Services Ltd | Builders | DH5 8BY | 2014 |
| Dw Door and Window Repairs Ltd | Builders | DH5 8EJ | 2024 |
| E King (Steelfixing) Ltd | Builders | SR3 1JF | 2009 |
| Eco Gold Ltd | Builders | SR5 1QB | 2025 |
| Ecosy Energy Ltd | Builders | SR5 3JG | 2017 |
| Elite Security Shutters Ltd | Builders | SR3 1JL | 2025 |
| Eml Solutions Ltd | Builders | SR5 5JG | 2025 |
| F H T Developments Ltd | Builders | DH4 6JW | 2018 |
| Falconiform Structures Ltd | Builders | DH4 6JQ | 2017 |
| Ferry'S Fencing and Landscaping Ltd | Builders | DH5 8JH | 2024 |
| Forster Construction Ltd | Builders | SR3 1PT | 2026 |
| Frame Team Ltd. | Builders | DH4 6EA | 2013 |
| Ganley Estates Ltd | Builders | SR3 3TQ | 2020 |
| Ge Groundworks Ltd | Builders | SR5 3JT | 2019 |
| George Vardy Ltd | Builders | DH5 9HN | 1980 |
| Glyn Carter Building Services Ltd | Builders | DH4 6NT | 2007 |
| Gmh Groundworks Ltd | Builders | DH4 4QT | 2025 |
| Go Fix Northern Ltd | Builders | DH4 5HD | 2012 |
| Greenstone Groundworks Ltd | Builders | DH4 4PD | 2025 |
| Hamilton Steel Buildings Ltd | Builders | DH4 5QY | 2017 |
| Harness Renewables Ltd | Builders | DH4 7PN | 2023 |
| Headline Home Improvements Ltd | Builders | SR3 2UB | 2025 |
| Hepple Property Care Ltd | Builders | DH4 5RJ | 2010 |
| Highcrest Homes (North East) Ltd | Builders | SR3 3TN | 2016 |
| Home and Cosy Ne Ltd | Builders | SR5 2EG | 2023 |
| Home Design Products Ltd | Builders | DH5 9PF | 2021 |
| Home Improvements Sos Ltd | Builders | SR3 3JY | 2026 |
| Horn’S Plant Services Ltd | Builders | DH5 8AA | 2026 |
| House 32 Trading Ltd | Builders | SR3 1YJ | 2012 |
| I.R.G. Roofing Ltd | Builders | DH4 6RT | 2001 |
| Idw Neptune Ltd | Builders | SR5 4LR | 2025 |
| Indigo Bathrooms Group Ltd | Builders | SR3 3LZ | 2024 |
| Indigo Bathrooms Group North East Ltd | Builders | SR3 3LZ | 2025 |
| Integrated Engineering Management Ltd | Builders | SR3 1EH | 2024 |
| J & F Precision (Sunderland) Ltd | Builders | SR5 3QR | 2011 |
| J.R. Butterfield Ltd | Builders | DH5 9HN | 2005 |
| Jab Landscapes & Groundworks Ltd | Builders | DH4 7HY | 2018 |
| Jamie Stockdale Roofing Ltd | Builders | DH4 6RY | 2025 |
| Jc10 Projects Ltd | Builders | DH5 9RT | 2026 |
| Jds Energy Consultancy Ltd | Builders | SR5 3XF | 2023 |
| Jm Landscaping & Groundwork’S Ltd | Builders | SR3 4AP | 2024 |
| Jmg Groundworks Ltd | Builders | DH5 0ER | 2023 |
| Jmy Construction Ltd | Builders | SR3 4NE | 2026 |
| John Scott Roofing & Property Services Ltd | Builders | DH4 4PX | 2026 |
| Jordan Property Improvements Ltd | Builders | DH5 8DW | 2026 |
| Jp Rigging Services N.E Ltd | Builders | SR5 1LY | 2023 |
| Jrh Construction Solutions Ltd | Builders | DH4 7FF | 2019 |
| Just R (UK) Ltd | Builders | SR5 2BA | 2005 |
| Jw Joinery & Property Maintenance Ltd | Builders | DH4 6LR | 2019 |
| K Construction Ne Ltd | Builders | DH5 9PG | 2026 |
| Keelman Construction Ltd | Builders | SR3 3TA | 2008 |
| King Brothers Bricklaying Contractors Ltd | Builders | SR5 3JT | 1997 |
| Kp Construction and Consultancy Ltd | Builders | DH5 8BJ | 2025 |
| L N Gillies Roofing and Cladding Ltd | Builders | DH4 6EF | 2026 |
| L&R Groundworks and Paving Specialists Ltd | Builders | SR3 1JP | 2025 |
| Labour Loop UK Ltd | Builders | DH5 0NZ | 2025 |
| Ljc Property Solutions Ltd | Builders | SR3 2UL | 2025 |
| Lpw Steelcraft Ltd | Builders | DH4 4UQ | 2021 |
| Lyons Maintenance Landscaping Ltd | Builders | DH5 0LB | 2026 |
| M & T Galley Ltd | Builders | DH4 4SZ | 2002 |
| M March Ltd | Builders | DH4 5QY | 2026 |
| M P Inspection Services Ltd | Builders | DH4 6QA | 2011 |
| Matrix Construction Ne Ltd | Builders | DH5 0HE | 2026 |
| Mb Training Services Ltd | Builders | DH4 7EB | 2018 |
| Mccabe Bricklaying Ltd | Builders | SR3 1JZ | 2025 |
| Md Brickwork (Ne) Ltd | Builders | DH5 0EN | 2024 |
| Md Engineering Services (UK) Ltd | Builders | DH4 6JN | 2007 |
| Mjdc (North East) Ltd | Builders | SR3 2BX | 2016 |
| Ml Construct Investments Ltd | Builders | SR3 4HD | 2026 |
| Monument Doors Ltd | Builders | DH4 4XZ | 2025 |
| Munro Contractors Ltd | Builders | DH4 6HW | 2024 |
| Myppms Group Ltd | Builders | SR5 2TA | 2026 |
| N E Automatics Ltd | Builders | SR5 2TA | 2026 |
| N/East Ltd | Builders | SR5 4AE | 2025 |
| Nes Snagging Services Ltd | Builders | SR5 2TA | 2020 |
| New Heights Rigging Ltd | Builders | SR3 2DW | 2024 |
| Nexgen Groundwork'S & Construction Ltd | Builders | SR5 3EA | 2021 |
| North East Groundworks Solutions Ltd | Builders | DH5 0AS | 2023 |
| North East Interior Solutions Ltd | Builders | DH4 5DU | 2025 |
| North East Tiling Services Ltd | Builders | DH4 5DU | 2024 |
| North Inspections Ltd | Builders | SR5 5EG | 2025 |
| Nrg Group Solutions Ltd | Builders | SR5 4LA | 2022 |
| Nts Blade Tech Ltd | Builders | SR5 5NJ | 2026 |
| Oaktree Construction Ne Ltd | Builders | DH5 9PG | 2026 |
| Ola Fencing Ltd | Builders | DH4 5QG | 2026 |
| Olala Mobility Ltd | Builders | SR3 1UG | 2025 |