- A L M Products Ltd - Newton Aycliffe
- Advance Automated Systems Ltd - Newton Aycliffe
- Aeon International Ltd - Newton Aycliffe
- AF Engineering & Design Services Ltd - Newton Aycliffe
- A-tech Fabrications Ltd - Newton Aycliffe
- Aycliffe Engineering Ltd - Newton Aycliffe
- BTS Fabrications LTD - Newton Aycliffe
- Collins Seafoods Ltd - Newton Aycliffe
- CVO Fire - Newton Aycliffe
- D & S Services - Newton Aycliffe
- Durham Precision Engineering Ltd - Newton Aycliffe
- Ebac Ltd - Newton Aycliffe
- Engineered Offsite System - Newton Aycliffe
- Finley Structures - Newton Aycliffe
- Formula Plastics Ltd - Newton Aycliffe
- G. Stiller (Transport) Ltd - Newton Aycliffe
- Go Geothermal Ltd - Newton Aycliffe
- Husqvarna - Newton Aycliffe
- Inbox Self Storage - Newton Aycliffe
- Liddell Appliance Testing - Newton Aycliffe
- Linde Castle Ltd. - Newton Aycliffe
- Longden Doors UK Ltd - Newton Aycliffe
- Lucite International - Newton Aycliffe
- Mold Systems (Europe) Ltd - Newton Aycliffe
- MS Testing - Newton Aycliffe
- Multi Surface Fabrications Limited - Newton Aycliffe
- Northern Janitorial Supplies - Newton Aycliffe
- Now Plastics - Newton Aycliffe
- Oberlin Filter Ltd - Newton Aycliffe
- Pat Labels Online - Newton Aycliffe
- Permoid Industries Ltd - Newton Aycliffe
- Perry Process Equipment Ltd - Newton Aycliffe
- Precision Toolroom Services & Machining Ltd - Newton Aycliffe
- Protech Direct Pest Control - Newton Aycliffe
- PWS Distributors Ltd - Newton Aycliffe
- Quality Hydraulics Ltd - Newton Aycliffe
- Roman Limited - Newton Aycliffe
- S M K Electronics Europe Ltd - Newton Aycliffe
- Sabre Rail - Newton Aycliffe
- Sanders Associates Ltd - Newton Aycliffe
- Saxon Fabrications Ltd - Newton Aycliffe
- Senstronics - Newton Aycliffe
- Soretrac Uk - Newton Aycliffe
- UPEX YORKSHIRE ELECTRICAL DISTRIBUTORS - Newton Aycliffe