"We've been over and we've had our prototype accepted.
"We are way ahead of the other supplier so we will be getting the initial 300 order which has to be installed before the [2012] Olympics," she said.
Ransley claimed the countdown timers were far safer than other sorts of pedestrian signals and said they should help save the life of one Londoner a week.
London has about 1500 fatal incidents involving pedestrians every year and the introduction of countdown timers has become a pet project of the city's mayor, Boris Johnson.
Ransley said opportunities for Traffic Systems in Britain were huge given the region has 60,000 intersections where the timers could be installed.
Founded in 1994, Traffic Systems is based in Auckland and has about 65 staff.