From The Dragon Archive

Investrónica S.A. is a spanish computer and mobile phone wholesale company, part of the El Corte Inglés department store group.

Created in 1986, it started importing the Sinclair Spectrum 128, but ended up building them because of the taxes for importing computer form other EEC countries.

The company also designed and built the ZX Spectrum 128, the last Spectrum before Amstrad's acquisition of Sinclair Research.

They also were software publishers. For the Dragon, they published the titles made by Indescomp.