- Arroya Engineering
- Precision engineering and computer aided design. - Autoflame Engineering
- Specialises in engineering and technology for combustion management and control. - Bearing & Engineering Services
- Mechanical power transmission specialists for an array of industries. - BHR Group
- Fluid engineering research, development, consultancy, training and conferences. - Bolt Science
- Specialists in solving problems related to all aspects of the design and installation of bolted joints and of threaded fasteners in general. - Comar Fluid Power
- Supplies systems and services to industry, specialising in the application of products for power motion and control. - Copeland & Craddock Ltd
- Specialising in sub-contract precision centreless turning and reeling of ferrous and non-ferrous round bar and thick walled tube. - Darchem Engineering Limited
- Design, development, and manufacture of high temperature, lightweight insulation systems, jet pipes, exhaust mixers, and more. - Eliza Tinsley Group plc
- Manufacture and distribution of engineering components and hardware. - Excel Precision Engineering Ltd
- Providers of fin machines and corebuilder technology to the heat exchange industry. - Fox Engineering Co. Ltd.
- Designs and produces hydraulic cylinders and systems, and offers sub-contract precision machining and other manufacturing services. - General Maintenance and Diagnostics Ltd
- Offering injection moulding and extrusion technical support. Specialises in industrial machinery repairs, machinery servicing, machine and compressor installations, and portable appliance testing. - IMI (1)
- J.R.G. Group
 - Johann A. Krause UK Ltd.
- Manufactures assembly and test systems for automotive power train components, including engines, transmissions, axles, and steering systems. - John Bradley Group
- Manufacturers of precision components, springs, and other equipment for a wide range of industries. - Kenward Precision & Gear
- Dealing with all aspects of repetition and precision engineering. - Kinneir Dufort Industrial Design
- CAD, development and prototyping. - Morton Stokes
- Mechanical industrial engineering contractors to the food and drink, cement, glass, steel, and textiles industries. - PEME
- Mechanical and electrical engineering supplier offering a broad range of services from design and software, through to installation and plant maintenance. - Qualter Hall
- Mechanical handling engineers providing consultancy, project management, design, and manufacture. - Renishaw plc
- Offers automated metrology products which automate CMM and CNC machine tool operations; together with calibration, encoder, scanning, and spectroscopy systems. - RST Engineering
- Precision engineering services to include wire EDM, CNC machining, and spark erosion for industry sectors such as medical, automotive, and aerospace. - Universal Balancing Ltd
- Specialises in dynanamic vertical and horizontal balancing machines. - Weir Group (1)
- West Surrey Engineering Group
- Light engineering specialising in automobile automation and special purpose machinery.
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