I presume you mean fossils of large soft-bodied organisms? (Precambrian fossils have been found all over the world, but most are fossils of bacteria or algae.) If you mean fossils of the 'Ediacara biota' of relatively soft-bodied organisms, this list is where they've been found. This is from memory, so I may have left something out or gotten something wrong, but here goes:
Major localities: (several well-preserved taxa) Ediacara Hills, south Australia White Sea coast, north Russia (several sites) Olenek Uplift, near mouth of Lena River, Siberia Mistaken Point, Newfoundland, Canada Nama Group outcrops, Namibia Mackenzie Mountains, Northwest Territories, Canada Charnwood Forest, England Dniestr River, Podolia region on Moldovan border, Ukraine (main locality now underwater thanks to hydroelectric plant)
Minor localities: (one or a few taxa, mostly 'medusoids'

Central and southern Ural Mountains, Russia (several sites) Central Australia near Alice Springs (several sites) Death Valley and areas south and east, California-Nevada, USA Surrey County, North Carolina, USA Tanafjorden, Finnmark, Norway South China (several localities) Western Australia (I forget where) Southwest Brazil and northern Argentina Central Antarctica Rocky Mountains, British Columbia, Canada West Africa (I forget where)
Questionable or doubtful localities: Lake Baikal, Siberia Sonora, Mexico Morocco Sardinia North China Naini Tal Formation, India