Supply chain management is quite important management tool in corporations, however it seem to be more used in small and medium enterprises as well. This research investigates supply chain management in total 613 SMEs of Canada, Iran and Turkey to explore SMEs practices in global context. Results confirmed SCM's determinants, factors, barriers, practices, functioning, environmental and social sustainability statistically significantly differ in contrasting economies while only SCM determinants do not significantly differ for the size of entity. The SMEs' length duration also affected the considered attributes. Apart from SCM determinants all other factors have no significant relationship with the designation whereas types of industry significantly affect the types of practices and functioning within SCM. Lastly, this paper theorizes that the environmental and social sustainability have significant relation with the type of industry.