The career-focused social network LinkedIn says it's reached 300 million members, with more than half the total outside the US.
But vice president Deep Nishar says the company needs to get more people using the service on mobile devices.
"We know mobile is critical," he said. "Later this year, we are going to hit our mobile moment, where mobile accounts for more than 50 per cent of all global traffic."
He said in a blog post that dozens of countries, including Malaysia, Singapore and the UK, already contain more users on mobiles than desktop computers.
Earlier this year, LinkedIn launched a Chinese language version, attempting to tap the huge market while navigating a strict censorship regime that has seen other foreign social media giants banned.
"Our goal is to connect the more than 140 million Chinese professionals with each other and the global workforce," Nishar said.
In China, LinkedIn allows users to post public comments, but unlike its English-language counterpart it does not currently allow group discussions.
The social network launched in 2003 allows members to create professional circles that help their career path, and allows employers and recruiters to locate people with needed skills.
The company went public in 2011 with one of the hottest public offerings in the sector at the time. Its share price has jumped to US$175.42 (A$187.81) from the IPO price of US$45.
LinkedIn's latest estimate, provided at the end of 2013, placed the number of Australian members above five million.