I am looking for a comprehensive list of companies in Valencia, Spain which
undertake research and development in the field of (digital)
communications and signal processing. Company URLs should also be
provided, if available.

If, to make up an example,  a large well known company such as
Qualcomm has operations in Valencia, but there is no research and
development being undertaken at this location (as opposed to their
other locations) then this does NOT qualify as a suitable candidate.

I am looking for companies who might specialise in wireless
communications research, or powerline communications research, signal
processing software and hardware R&D. and so on....

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Clarification of Question by porterboy76-ga on 21 Jul 2004 01:14 PDT

OK, no response forthcoming, so i have increased the ask price to
$30.00 and I will broaden the scope of the question to make it
simpler.

I would like a comprehensive list of companies in SPAIN* which
undertake research and development in the field of digital signal
processing and/or digital communications. Please provide URLs if
available.

*not just Valencia, although my preference is for this location.