Just Who are the Thomas Manufactuers

Plarail is the name of TOMY's (main) toy train system as a whole, not a manufacturer. Oddly, it seems TOMY never actually used it outside East Asia; not even on non-Thomas releases. Both Tomica World (late '90s-early 2000s) and Tomica Hypercity (early 2010s) were European-American-Australian releases of Plarail. Tomica is also a brand of plastic/die-cast vehicles with their own road parts and accessories, which were also included with Plarail trains in Tomica Hypercity playsets.