- Advanced Handling & Storage Ltd - DL4 2RD
- Alpha 1 Legal Services - DL4 2QN
- ANF - DL4 2RD
- Aspect Facades Ltd - DL4 2RF
- Barrier Surveilance Systems Ltd - DL4 2RD
- Blue Diamond Engineering Ltd - DL4 2QN
- Blue Diamond Machine Tools Ltd - DL4 1HG
- Brancepeth Engineering - DL4 1HF
- CRD Devices Ltd - DL4 2RD
- DH Drawings - DL4 1NF
- G&P Technology Co Ltd - DL4 1QB
- H S E Q Smart Ltd - DL4 1DS
- HSEQ Smart Ltd - DL4 2RF
- Jack Coupe & Sons Ltd - DL4 1HG
- JVA Precision Engineering Ltd - DL4 1QB
- Masterlube - DL4 2QN
- Playprint Ltd - DL4 2RA
- Roof Lights - DL4 2RF
- Solartron I S A - DL4 1LH
- Solentec Ltd - DL4 2RD
- Sweet Greetings Shildon - DL4 1DU
- Wilsonart - DL4 1PX