A statement from Bitdefender said this was its first physical presence in the region since it entered the market in 2005.
It said for the last four years, SMS eTech had "served as Bitdefender’s exclusive country partner in Australia, successfully growing business by 55%, with a strong emphasis on enterprise sales".
SMS eTech also has offices in New South Wales, Queensland, South Australia, Western Australia and New Zealand.
“Bitdefender Australia will play a key role as we continue to build our business and brand into the APAC region. Our channel partners have proven an essential ingredient in our success, and we look forward to working closely with them, locally, to serve and protect more businesses in the region.”
Colin Westbury, managing director of SMS eTech, said: “The acquisition was the natural progression our two companies.
“SMS eTech has always specialised in helping brands establish in the ANZ region. I look forward to watching Bitdefender accelerate its presence and market penetration in the region with their world leading security solutions.”