Since its inception, Intelsat has used several versions (blocks) of its dedicated Intelsat satellites. Intelsat completes each block of spacecraft independently, leading to a variety of satellite manufacturing contractors over the years. Intelsat's largest spacecraft supplier by 2012 was Space Systems/Loral, having built 47 spacecraft (Intelsat 20) by that time.
since its inception intelsat has used several versions (blocks) of its dedicated intelsat satellites intelsat completes each block of spacecraft independently leading to a variety of satellite manufacturing contractors over the years intelsat's largest spacecraft supplier by 2012 was space systems/loral having built 47 spacecraft (intelsat 20) by that time