The catalogue of 53 nanotechnology companies that Spain has produced is part of a national nanotechnology action plan according to the July 5, 2011 news item on Azonano,

At the end of 90’s, Spain had not any institutional framework nor initiative pointed towards the support and promotion of R&D in Nanotechnology. This fact pushed the scientific community to promote several initiatives to strengthen research in Nanotechnology and, at the same time, to raise the awareness of Public Administration and industry about the need to support this emergent field. In parallel, numerous companies dedicated to N&N arouse, many of them spin-offs emerging from research centers.

The Spanish Institute for Foreign Trade (ICEX) conscious of the importance of this field to the development and growth of Spanish companies decided to launch 5 years ago an action plan on Nanotechnology, which Phantoms Foundation coordinates. Within this framework, in 2011 a catalogue that gathers 53 companies working in N&N was launched.

You can find the Phantoms Foundation here (nice, clean design on the home page) and the catalogue here.