'Gulbransen' branded equipment was manufactured by Collier & Beale Ltd, they were distributed by H. W. Clarke Ltd . Currently there are 36 documented models.
Gulbransen radios were originally imported from the US (those models are not covered here), but when import restrictions came into force in 1938/39 they had locally made sets manufactured by Collier & Beale in Wellington, still using the Gulbransen name.