The Migratory Connectivity in the Ocean (MiCO) consortium is a group of over 50 organizations that seeks to fill a major knowledge gap regarding global migratory routes and connected areas for marine mammal, seabird, sea turtle and fish species. Due to their wide-ranging behaviors, migratory species experience a variety of anthropogenic pressures. Combined with conservation strategies that largely fail to consider spatial connectivity over their life cycle, these threats are resulting in declining populations worldwide. 95% of albatross, 87% of assessed migratory sharks species, and 63% of assessed sea turtle subpopulations are listed as Near Threatened or Threatened by the IUCN. Similarly, straddling and highly migratory fish stocks experience twice the rate of overfishing (64% of stocks) as those within a single national jurisdiction. Knowledge on migratory connectivity provided by MiCO will be critical in informing conservation efforts of migratory species in areas beyond national jurisdiction (ABNJ), particularly via the large number of emerging area-based planning efforts.