Classifion
- Shareware tool for classification of substances using their mass-spectra, applying multivariate and principal component analysis with Mahalanobis distance. Includes overview, download and ordering details.
- http://classifion.sicyon.com/

Multivariate Infometric Analysis Srl.
- Company producing and distributing scientific software devoted to solving complex chemical problems. Product overview, offering on site training or at their base in Perugia, Italy.
- http://www.miasrl.com/