| 1ne Group Ltd | Builders | DH4 7PP | 2018 |
| 2 Station Road Ltd | Hair & beauty | DH5 0AX | 2022 |
| 3d Electrical Ltd | Electricians | DH5 8BJ | 2016 |
| 3d Group Ne Ltd | Electricians | DH5 8BJ | 2026 |
| 3d Mechanical Ltd | Electricians | DH5 8BJ | 2025 |
| 3d Solar Ltd | Electricians | DH5 8BJ | 2025 |
| A J Poulton Roofing Ltd | Roofers | DH4 6RQ | 2012 |
| A M Electrical Services (Ne) Ltd | Electricians | DH4 4SJ | 2025 |
| A&P Maintenance & Joinery Services Ltd | Joiners & carpenters | SR5 2NT | 2019 |
| A-G Plumbing & Houses Ltd | Plumbing & heating | SR3 2FZ | 2021 |
| A.M. Watt Design & Build Ltd | Builders | SR3 1TN | 1987 |
| Aaa Groundworks Ltd | Groundworks & demolition | DH4 6JA | 2018 |
| Aacs Ltd | Plumbing & heating | SR5 3NZ | 1990 |
| Aacs Services Ltd | Plumbing & heating | SR5 3NZ | 2021 |
| Aaron Breeze Pest Control Ltd | Pest control | DH4 5QY | 2012 |
| Able Roofing and Home Improvements Ltd | Roofers | DH4 6EJ | 2021 |
| Abp (North East) Ltd | Electricians | SR5 2BN | 2008 |
| Access Property Maintenance Ltd | Plumbing & heating | DH4 7JF | 2022 |
| Acorn Environmental Pest Control Ltd | Pest control | DH4 6JW | 2008 |
| Adam Pike Ltd | Joiners & carpenters | SR3 2PL | 2019 |
| Advance Service Technology Co. Ltd | Builders | SR5 4AL | 2020 |
| Advanced Floors Ltd | Flooring & tiling | SR5 5EG | 2022 |
| Advanta Heat Ltd | Builders | SR5 2AU | 2024 |
| Afl Holdings Ltd | Builders | SR5 4EJ | 2025 |
| Agecs Ltd | Groundworks & demolition | DH5 9RP | 2016 |
| Agim Property Services Ltd | Plumbing & heating | SR5 3JG | 2026 |
| Ah Electrical ( Domestic ) Ltd | Electricians | DH4 4DE | 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 |
| Albisson Painting and Decorating Ltd | Painters & decorators | DH5 0HB | 2022 |
| Alex 55 Ltd | Hair & beauty | SR3 2NE | 2023 |
| Alex Grange Developments Ltd | Builders | SR5 5SY | 2025 |
| Alex Robson Heating and Gas Ltd | Plumbing & heating | DH4 6GQ | 2020 |
| Alitepropertymaintenance Ltd | Builders | SR3 3EA | 2026 |
| All Clean Northeast UK Ltd | Cleaners | SR5 3RE | 2026 |
| All Things Decontamination (Atd) Ltd | Cleaners | SR5 2TP | 2023 |
| Alliance Carpet & Upholstery Cleaning Ltd | Cleaners | DH4 4DT | 2022 |
| Almae Automation and Renewable Energy Ltd | Electricians | SR3 2AE | 2023 |
| Alo Autocare Ltd | Garages & mechanics | DH5 0DT | 2026 |
| Aloft Business World UK Ltd | Cleaners | SR3 4EU | 2025 |
| Alpha Control Solutions Ltd | Builders | SR3 2GQ | 2018 |
| Am Groundworks Ne Ltd | Builders | DH4 5DU | 2026 |
| Amps Electrical Ne Ltd | Electricians | DH4 7PZ | 2018 |
| Amr Roofing Ltd | Roofers | SR3 3TA | 2019 |
| Ams E&I Contracting Ltd | Electricians | DH4 7BN | 2022 |
| Andrew Medhurst Electricals Ltd | Electricians | DH4 4XJ | 2017 |
| Andrew W Electrical Ltd | Electricians | DH4 6SS | 2020 |
| Andy Hanratty Electrical Services Ltd | Electricians | DH4 4DE | 2024 |
| Anthony Iley Electrical Contractors Ltd | Electricians | SR3 2NY | 2023 |
| Apa Offshore Services Ltd | Builders | SR3 1PA | 2024 |
| Apex Resin Decor Ltd | Painters & decorators | SR5 5HB | 2024 |
| Aqi Barber Ltd | Hair & beauty | SR5 5HF | 2024 |
| Aquinox Contracts Ltd | Builders | SR3 3PP | 2016 |
| Arete E&I Consultancy Ltd | Electricians | DH4 5HB | 2026 |
| 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 |
| Atkinsons Electrical (Ne) Ltd | Electricians | SR3 2UD | 2025 |
| Atlas Reach and Wash Ltd | Cleaners | DH4 5JQ | 2020 |
| Automated Building Controls Ltd | Electricians | SR3 3NL | 2021 |
| Aw Electricals (N.E) Ltd | Electricians | SR3 2FS | 2023 |
| B & T Rendering Ltd | Plasterers | DH4 5ND | 2010 |
| B Ridley Construction Ltd | Builders | DH4 6LG | 2025 |
| Bank Hair and Beauty Ltd | Hair & beauty | SR5 1AD | 2017 |
| 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 |
| Beau Developments North East Ltd | Plasterers | DH4 5DU | 2026 |
| Beautopia Salon Ltd | Hair & beauty | DH4 4AD | 2022 |
| Beckwith Consultants Ltd | Builders | SR3 3NE | 2025 |
| Bell Control Services Ltd | Builders | DH4 4EH | 2020 |
| Bella Esthetica Ltd | Hair & beauty | SR5 5SE | 2021 |
| Benchmark Surveys Ltd | Builders | SR5 5TS | 2018 |
| Bespoke Interiors North East Ltd | Builders | SR3 2EW | 2025 |
| Besty'S Barberz Ltd | Hair & beauty | SR3 4JT | 2024 |
| Bg Building & Facilities Ltd | Plumbing & heating | SR5 4DT | 2026 |
| Bg Flooring (Ne) Ltd | Flooring & tiling | DH4 5AB | 2022 |
| Bhh Cladding Ltd | Roofers | DH4 4ZH | 2022 |
| Bims Unisex Salon Ltd | Hair & beauty | SR5 3ND | 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 |
| Bmv Recovery Ltd | Removals | SR5 2TA | 2020 |
| Bodyfix Newcastle Ltd | Garages & mechanics | DH4 6TS | 2026 |
| Bourne Roofing Ltd | Roofers | DH5 9AL | 2025 |
| Brennan Access Ltd | Builders | DH4 7PA | 2025 |
| Brook Brothers Plumbing and Heating Ltd | Plumbing & heating | SR5 5NG | 2025 |
| Bsr Heating & Plumbing Ltd | Plumbing & heating | DH5 0DR | 2017 |
| Burrell Wind Service Ltd | Builders | DH4 6GT | 2025 |
| Burrows Psv Ltd | Garages & mechanics | DH5 0GU | 2026 |
| Buzzed Up Barber Ltd | Hair & beauty | DH5 9DS | 2025 |
| Byjen Academy Ltd | Hair & beauty | SR5 1AD | 2024 |
| C Med Spa Ltd | Hair & beauty | SR5 2BA | 2026 |
| C Tan Ne Ltd | Hair & beauty | SR5 2BA | 2025 |
| C.C.G.M. Ltd | Builders | DH5 8GB | 2023 |
| C.J Engineering Services Ltd | Builders | SR3 3QN | 2019 |
| C.P.S. Electrical Contractors Ltd | Electricians | DH5 0RH | 2003 |
| Cadman and Forrest Ltd | Builders | DH4 4PG | 2024 |
| Callum Todd Property Maintenance Ltd | Builders | DH4 4XA | 2026 |
| Car Safety Centre Ltd | Garages & mechanics | DH4 5RJ | 2016 |
| Carter Building & Construction Ltd | Builders | SR3 2WD | 2003 |
| Casey'S Barbers Ltd | Hair & beauty | DH4 4DJ | 2025 |
| Castlegreen Construction Ltd | Builders | DH5 9RY | 2023 |
| Cdl Contracts North East Ltd | Builders | SR3 2DD | 2016 |
| Chair Up Ltd | Hair & beauty | DH5 8BY | 2026 |
| Chapter Thorpe Ltd. | Builders | DH5 9PF | 2017 |
| Chimney Craft Ltd | Builders | DH4 4JU | 2026 |
| Chiswick Electrical Solutions Ltd | Electricians | DH4 6PA | 2022 |
| Chris Askew Services Ltd | Roofers | SR5 3EH | 2019 |
| Chris Curry Plumbing Ltd | Plumbing & heating | DH5 8EX | 2021 |
| City Auto Solutions Ltd | Garages & mechanics | SR5 3JG | 2009 |
| City Building Services (Ne) Ltd | Builders | SR5 3JJ | 2012 |
| Ck Contractors North East Ltd | Builders | SR5 5NN | 2024 |
| Cladcliffe Ltd | Builders | DH4 4PB | 2020 |
| Clean For You North East Ltd | Cleaners | SR5 1AB | 2023 |
| Cleaner Carpets North East Ltd | Cleaners | SR3 2SH | 2021 |
| Cleanrooms (Northern) Ltd | Builders | DH5 8LQ | 2023 |
| Clearview Windows (North East) Ltd | Glaziers | DH4 7BG | 1991 |
| Cmc Management Ltd | Roofers | SR5 2TA | 2026 |
| Cmlr Ltd | Builders | SR3 2FG | 2016 |
| Coating Repair Specialists Ltd | Painters & decorators | SR3 4EB | 2006 |
| Cobalt Facility Management Ltd | Builders | DH4 5DU | 2024 |
| Colin Wrathmall Decorators Ltd | Painters & decorators | SR3 2UH | 2026 |
| Colquhoun Pm Services Ltd | Builders | DH5 8BY | 2023 |
| Commercial Installation & Service Ltd | Plumbing & heating | SR3 3RT | 2019 |
| Commercial Joinery Specialists Ltd | Joiners & carpenters | SR5 2TZ | 2009 |
| Community Assistance Ne Ltd | Garages & mechanics | DH4 5DU | 2020 |
| Connor Pritchard Tm Ltd | Groundworks & demolition | DH5 8DW | 2022 |
| Contemporary Roofline Ltd | Roofers | SR5 5PT | 2011 |
| Cooke On Gas Ltd | Plumbing & heating | SR3 3LZ | 2022 |
| Coptek Electrical Ltd | Electricians | DH5 9RS | 2021 |
| Courtney'S Hair & Beauty Ne Ltd | Hair & beauty | DH4 5DU | 2025 |
| Cove Salon Ltd | Hair & beauty | SR5 2BA | 2024 |
| Cpb Electrical Services Ltd | Electricians | DH4 6GE | 2024 |
| Cr Commercial & Domestic Cleaning Ltd | Cleaners | SR5 3DF | 2026 |
| Crawford Cladding Solutions Ltd | Builders | DH4 7NS | 2023 |
| Crest Business Consultancy Ltd | Joiners & carpenters | SR3 3QD | 2026 |
| Crownandtrowel Ltd | Plasterers | SR3 1SU | 2026 |
| Crs Decorators Ltd | Painters & decorators | SR3 3DZ | 2021 |
| Css Electrical & Mechanical Ltd | Electricians | SR5 2TA | 2021 |
| Ctl Demolition and Dismantling Ltd | Groundworks & demolition | SR5 5DT | 2020 |
| Cummings and Ayre Fencing and Decking Ltd | Builders | SR3 4JJ | 2016 |
| Cummings and Pattison (North East) Ltd | Painters & decorators | DH5 0BG | 2009 |
| Cummings and Pattison Ltd | Painters & decorators | DH5 0EZ | 2003 |
| Cwl Home Improvements Ltd | Builders | DH5 0JN | 2019 |
| D & L Roofing (N.E.) Ltd | Roofers | DH4 4HR | 2007 |
| D & S Contracts (Ne) Ltd | Builders | SR5 1NH | 2016 |
| D J Hemmings Industrial Roofing & Cladding Ltd | Roofers | DH4 4UL | 2022 |