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Okmetic Ltd.

Makituvantie 2, Vantaa 01510, Finland
Tel: +358 9502800
Fax: +358 950280500
E-mail: sales@okmetic.com
Contact: Annikki Vuola
Okmetic manufactures mainly three types of silicon wafers: application specific wafers, sensor wafers for micromechanics and highly doped wafers for manufacturers of power and discrete semiconductors including SOI and silicon carbide wafers.

Optotek Ltd.

62 Steacie Drive, Kanata, Ontario, K2K 2A9, Canada
Tel: +1 613 591 0336
Fax: +1 613 591 0584
Internet: http://www.optotek.com
Contact: P Wareberg
Manufacturer of advanced optoelectronics, including LED displays.

OSRAM Opto Semiconductors GmbH and Co OHG

Wernerwerkstr. 2, 93049 Regensburg, Germany
Tel: +49 941 202 7178
Fax: +49 941 202 7198
Net: http://www.osram.com
Manufacturer of blue and white LEDs.

Oxford Applied Research

Crawley Mill, Witney, Oxon, OX8 5TJ, UK
Tel: +44 (0)1993 773575
Fax: +44 (0)1993 702326
E-mail: sales@oaresearch.co.uk
Net: http://www.oaresearch.co.uk
Contact: Christian Bradley
Manufacturer of 'add-on' equipment for the processing of III-nitrides.

Oxford Instruments Plasma Technology

North End, Yatton, Avon, BS19 4AP, UK
Tel: +44 (0)1934 87 6444
Fax: +44 (0)1934 83 4918.
E-mail: plasma.technology@oxinst.co.uk
Net: http://www.oxinst.co.uk
Contact:
Oxford Plasma Technology, part of the Oxford Instruments Group, manufactures plasma and ion beam etch and deposition equipment.

Oxley Developments Company Ltd.

Priory Park, Ulverston, Cumbria, LA12 9QG, UK
Tel: +44 (0)1229 582621
Fax: +44 (0)1229 585090
E-mail: sales@oxley.co.uk
Internet: http://www.oxleygroup.com
Contact: D Howell
Manufacturer of LEDs.