There are numerous illegal Companies on the Costa
Blanca openly advertising in papers and on the internet as legitimate
taxi/transfer companies. There are also apartment owners & letting
agencies and golf tour companies offering cheap transfers, these are also
illegal.
Alicante and Valencia Airport is patrolled continuously by
the police & government inspectors looking for illegal touts. If a
Transfer Company asks to meet you anywhere other than in the arrivals
terminal or in the free designated parking area for coaches and taxis,
they will be illegal and you will not be insured for passenger liability
cover.
You should remember that if stopped by the Guardia Civil
(Police) the vehicle would be confiscated immediately leaving you
stranded. A vehicle that is licensed will be SP (Servicio Publico) plated
by the Spanish Authorities.