Security software maker AVG Technologies has been reportedly approached by buyers, including private equity firms and a technology company.

A source told the Wall Street Journal that there is no formal sales process yet, and if the deal is finalised then the process is expected to start in the coming months.

The company itself is growing by acquiring other security companies, which some reports suggest is a strategy taken by AVG to lift its own valuation.

AVG recently acquired mobile-security firm Location Labs and software vendor Norman Safeground.

With more than 187 million active users, the company makes security software for PCs and mobile devices that are capable of neutralising virus, prevent spam and identity theft.

According to reports, there has been a growing interest amongst private-equity firms towards security-focused technology providers.