Obelisk Engineering Wellingborough 1 Adams Yard South, Stanley Road, Wellingborough NN8 1DY, United Kingdom Northampton Mechanical Engineering Read more about Obelisk Engineering
Oncad Engineering Ltd. Newton Aycliffe 1 Angels Clo, Heart Of The Park, Aycliffe Industrial P, Newton Aycliffe DL5 6BG, United Kingdom Darlington Mechanical Engineering Read more about Oncad Engineering Ltd.
Oakland Fencing Ltd. Brockenhurst 1 Braod Mead Cottage, Lyndhurst Road, Brockenhurst SO42 7QH, United Kingdom Southampton Engineering Read more about Oakland Fencing Ltd.
Ove Arup & Partners Scotland Ltd. Dundee 1 Courthouse Square, Dundee DD1 1NH, United Kingdom Dundee Consulting Read more about Ove Arup & Partners Scotland Ltd.
Oil & Gas Fabrications Ltd. Swansea 1 Mardy Industrial Estate, Gorseinon, Swansea SA4 4HL, United Kingdom Swansea Mechanical Engineering Read more about Oil & Gas Fabrications Ltd.
Ocean Tools Ltd. Aberdeen 1 Mill Lade Cottages Cottage, Aberdeen AB21 0JL, United Kingdom Aberdeen Services Read more about Ocean Tools Ltd.
Opec Ltd. Batley 1 Nab Lane, Batley WF17 9NG, United Kingdom Wakefield Consulting Read more about Opec Ltd.
Orbit Engineering Services Oldham 1 Union Street, Chadderton, Oldham OL9 7JH, United Kingdom Oldham Precision Engineers Read more about Orbit Engineering Services
Oval 316 Ltd. Poole 10 Cowley Road, Nuffield Industrial Estate, Poole BH17 0UJ, United Kingdom Bournemouth Engineering Read more about Oval 316 Ltd.
Oban Engineering Co. Ltd. Oban 10 Crannog Lane, Lochavullin Industrial Estate, Oban PA34 4HB, United Kingdom Paisley Services Read more about Oban Engineering Co. Ltd.
Osprey Engineering Ltd. Camberley 10 Heatherley Close, Camberley GU15 3LU, United Kingdom Guildford Engineering Read more about Osprey Engineering Ltd.
O J Wootton Ltd. Dudley 100 Brook Street, Lower Gornal, Dudley DY3 2UZ, United Kingdom Dudley Services Read more about O J Wootton Ltd.
Opecom Engineering UK Barking 103 60 East St, Barking IG11 8EQ, United Kingdom IlfordLondon Borough of Redbridge Design Engineers Read more about Opecom Engineering UK
Old Oak Engineering Pontypool 11 Gilchrist Thomas Industrial Estate, Blaenavon, Pontypool NP4 9RL, United Kingdom Newport Services Read more about Old Oak Engineering
Oxy-Gas (Electric & Mechanic Engineering) Ltd. Dartford 11 Kennet Rd, Dartford DA1 4QN, United Kingdom Dartford Mechanical Engineering Read more about Oxy-Gas (Electric & Mechanic Engineering) Ltd.
Owell Brothers (Hearing Air Services) Ltd. Ormskirk 111 New Court Way, Ormskirk L39 2YT, United Kingdom Liverpool Design Engineers Read more about Owell Brothers (Hearing Air Services) Ltd.
Oxy-Tech Services Ltd. Rotherham 12 Greasbrough Road, Parkgate, Rotherham S62 6HN, United Kingdom Sheffield Services Read more about Oxy-Tech Services Ltd.
Ove Arup & Partners Hong Kong Ltd. London 13 Fitzroy Street, London W1T 4BQ, United Kingdom City of London - Greater London Consulting Read more about Ove Arup & Partners Hong Kong Ltd.
O'Brien & Price (Cheltenham) Cheltenham 13 Imperial Square, Cheltenham GL50 1QB, United Kingdom Gloucester Engineering Read more about O'Brien & Price (Cheltenham)
Oxford Gas Services Oxford 13 Mortimer Road, Rose Hill, Oxford OX4 4UQ, United Kingdom Oxford Services Read more about Oxford Gas Services