Which company developed and published Pokémon GO at launch?

Niantic developed and published Pokémon GO at launch.

The 2016 mobile game was made in partnership with Nintendo and The Pokémon Company for iOS and Android devices. It uses GPS, mobile connectivity, and augmented-reality features to place Pokémon encounters in real-world locations.

Niantic's earlier experience with location-based games helped shape Pokémon GO. The game uses a map-based structure with PokéStops, Gyms, and wild Pokémon encounters, encouraging players to explore physical places while collecting and battling Pokémon.

Nintendo and The Pokémon Company are often named first in discussions of the game because they supplied the Pokémon brand and business partnership. However, Niantic is the company credited with developing and publishing the game at launch. Pokémon GO initially launched in Australia, New Zealand, and the United States on July 6, 2016, before expanding to other markets.