Mako, which was started out in 2000 as YellowTuna Networks, offers cloud-based network management and security systems for companies that process credit cards.
It helps those merchants that process, transmit or store cardholder data to comply with rules designed to protect credit card users and combat fraud, called Payment Card Industry Data Security Standards (PCI DSS).
The tighter standards mean cybercriminals have increasingly targeted smaller businesses, such as cafes and corner dairies.
Mak0 was awarded a $4.2 million Technology Development Grant from the Ministry of Science and Innovation in 2011.
Gamble said that grant had helped Mako "to springboard an aggressive growth strategy", leading to its position now in the US.
Since receiving the grant, Mako has taken on 15 more staff at its R&D centre in Albany and carried out some major development projects.
"The return on investment for the grant funding we've received is evident in the way our organisation has matured over the past 24 months," said chief executive Bill Farmer.
"Were it not for these grants, Mako's journey would have been very different."
Mako now employs more than 80 New Zealand residents in Albany and also has offices in Melbourne and London.
The company expects to double its headcount in the coming year.