O’Reilly O2 Game Oasys Obart Pumps Objectif Lune Objective Interface Systems Objet Geometries Objet Geometries OBSAI OC Eyelet OC Robotics Ocean Blue Ocean Optics OCF OCN and PPL Services Octagon Systems Octasic OCTO Octo Media Octware Oden Corporation ODU UK Ltd ODVA ODVA, Europe Oel-Held OEM Automatic OEM Fabricators OEM Press Systems OEMB OEP Couplings Oerlikon Balzers Coating Oetiker OF Bell Officecad Offshore Europe Partnership Offshore Installation Services Offshore Northern Seas Ofil OFS OFS Specialty Photonics Ogle Models & Prototypes Ogles OGP Ohmite OHRA Regalanlagen Oil Analysis Services Oil Plus Oiluk OK International Okazaki Manufacturing Company Oki Electric Oki Electric Industry OKI Systems OKS Spezialschmierstoffe OKU Automatik Okuma OKW Enclosures Olaer Olaer Fawcett Christie OLC OLE OLED-T Oleo International Oliver Douglas Oliver IGD Oliver Products Oliver Valves Oliver-IGD Olmec Olsen Engineering Olympic Automation Olympus Automation Olympus Industrial Olympus Life Science Olympus Technologies OMAC Omax OMC UK Omeg Omega Engineering Omega Pultrusions Omega Research OmegaIP OMG OMICRON electronics UK Omitec Ommic Omnetics Connector Omnexus Omni Instruments Omni Technologies Omniflex Omnify Software Omnimotor Omnitrack Omnivision Omnivision Technologies Omron Omron AOI Omron Electronics Omron Electronics Omron Scientific Technologies On 365 ON Semiconductor On Track Record ONA Electro-Erosion Onanon Onboard Electronics Ondax Ondrives One CNC One For Instrumentation One Media One RF Technology One51 Oneac Oneflow Onespin Solutions Online Online Packaging OnSite Onward Technologies Opal Opal Kelly Opal-RT Technologies OPC Foundation OPC Training Institute Open Controller Open Design Alliance Open Devicenet Vendor Association Open Interface Open Mind Technologies Open Systems Publishing Open-Plug Openbravo Opencores Openda OpenERP Solutions Opengear OpenMake Software Openxtra Openxtra Operational UK Ophir RF Ophir-Spiricon OPS-Ingersoll Funkenerosion Opsitech Optek Systems Optek Technology Optek-Danulat Optel Vision Opti-Ups Optical Antenna Solutions Optical Metrology Centre Optical Metrology Services OptiCal Sciences Optical Surfaces Optical Technology Training Optics for Hire Optics In Motion Optima Control Solutions Optimalon Software Optimas Optime Lighting Optimex Optimum Training Optio Software Optitex Opto Diode Opto Engineering Opto Technology OptoCem.Net Optosigma Optotherm Optrel Optrex Optris Opulan Technologies Oracle Components Orange Instruments Orange Tree Technologies Orbimatic Orbis Software Orbit Micro Orbit Technology Orbita Welding Systems Orbitec Orbitec International Orbitform Orchard Electronics Orchard Materials Orchard Process Controls Orchid Technologies Engineering and Consulting Orelis Oren Elliot Products Organic Electronics Association Oriel Systems Oriental Motor Origin Outsourcing Solutions Oring industrial networking Orion Engineering Services Orion Fans Orion Packaging Systems Orlin Technologies Orlin Technology Ormec Systems Orolia Orthos Orus3D Orwak Orwin Automation OSA Opto Light OSA Technologies Osborne Engineering Osborne Technologies OSEM OSIL Osmos Osmosys Osram Opto Semiconductors Osram Sylvania OTT Hydrometry Outotec Outram Research Ovako Steel Ovation Engineering Ovation Products Ove Arup and Partners Owasys Advanced Wireless Devices Owens Corning Owens Design OWIS Owlstone Oxford Creativity Oxford Instruments Oxford Instruments Analytical Oxford Instruments Industrial Analysis Oxford Instruments Plasma Technology Oxford Lasers Oxford Nanoscience Oxford RF Sensors Oxford Semiconductor Oxford Technical Solutions Oxford Vision & Sensor Technology Oxfordshire Investment Opportunity Network Oxley Developments Oxoid Ozark Systems Ozmo Devices Ozone Industries