There's a good reason why Westfield retail technology spinoff OneMarket will be headquartered in San Francisco and go after the US market before pursuing Australia – it's not like any other local start-up.

Far from the well-worn tale of late nights with no cash spent around a kitchen bench or in a dimly lit garage, it will come to market (assuming shareholders approve the demerger) with $160 million in capital and a monthly cash burn rate of $6.9 million.