Campbell Engineering & Design

Hope Mill, Soho Street, Oldham, Greater Manchester, OL4 2AD

1 Parsons Street, West Midlands, Dudley, DY1 1JJ

Collingwood Buildings, 38 Collingwood Street, Newcastle upon Tyne, NE1 1JF

4 Vances Lane, Ballyhanwood Road, Belfast, BT5 7SW

9 Dorchester Parade, Dorchester Road, Hazel Grove, Stockport, SK7 5HA

Unit 15 Antrim Enterprise Agency, 58 Greystone Road, Antrim, BT41 1JZ

206 Lylehill Road, Belfast, BT14 8SN

Mieszczanska 31, Poland, Wroclaw, 50-201

Third floor/ 3 Hill Street, New Town, Edinburgh, EH2 3JP

34 Clareglen, Belfast, BT14 8LU